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jinx758 Samba Member
Joined: October 04, 2014 Posts: 699 Location: Texas
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Posted: Tue Apr 23, 2024 11:50 am Post subject: Re: The Stupid Question Thread |
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@ tissyfit ...
Good job on rewire !
Popping on acceleration is usually too lean or vacuum leak & on deceleration is normally an exhaust leak.
Carburetor linkage & air/fuel syncing is fiddly.
Tons of YT vids, some better than others.
1641cc, dual carbs, & cam - you should start a dedicated thread in the '68&Up or Performance section as you will likely get more views from highly experienced people.
Good luck ... stay safe
jinx _________________ " It's not valuable unless you learn something from an experience. " Henry Ford
It's not unlike the same difference
You can't push a rope
VALVES (cold)
POINTS
TIMING
CARB (fully warmed engine)
SCRAPE ALL GROUNDS
My Craigslist rescued 100 footer :
1971 Standard Bug
1776cc dual port
034 distributor
38mm EGAS Carburetor |
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Cusser Samba Member
Joined: October 02, 2006 Posts: 31389 Location: Hot Arizona
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Posted: Tue Apr 23, 2024 11:35 am Post subject: Re: The Stupid Question Thread |
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tissyfit wrote: |
I did finally get the rewire on my 74 VW Beetle complete and it started WHOOHOOO! Now it backfires constantly. Made a mistake and had someone try to adjust carbs (way worse!) I am doing spark plugs distributor cap and all.
I have never worked on a beetle air cooled. Scary! |
This is important, and often screwed up by rookies
_________________ 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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tissyfit Samba Member
Joined: December 02, 2023 Posts: 1 Location: Battle Ground, WA.
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Posted: Tue Apr 23, 2024 8:41 am Post subject: Re: The Stupid Question Thread |
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Another stupid question. I did finally get the rewire on my 74 VW Beetle complete and it started WHOOHOOO! Now it backfires constantly. Made a mistake and had someone try to adjust carbs (way worse!) I am doing spark plugs distributor cap and all. the engine isn't the stock it has a 1641cc duel Solex 40 carbs and a racing camshaft. Is there anything I should know before starting on everything? I have never worked on a beetle air cooled. Scary! but I never thought I would be able to rewire a car either but I did. I have watched a lot of videos bought a timing light and going to buy a snail for carb adjust. I don't know anyone near me to give me pointers or tips. Any help would be greatly appreciated. Now just wait for parts to show up and my next days off work. _________________ New at this vw stuff. Any knowledge is helpful knowledge is power! |
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busman78 Samba Member
Joined: August 17, 2004 Posts: 4525 Location: Oklahoma City, OK
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Posted: Tue Apr 23, 2024 3:52 am Post subject: Re: The Stupid Question Thread |
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Are you asking if a Type 4 based engine can be put in you Beetle the answer is yes. Is it an easy swap? Sort of, it is a costly swap. Will all your tin, manifold, exhaust from you Beetle fit? Nope.
The Type 4 engine can be converted to an upright cooled system like the Type 1, the articles Cusser directed you to will provide lots of answers you need. Plus there is good reading on this site and Shop Talk Forums, just search Converting Type 4 Engine To Upright, or similar words, that should get you heading into a very dark world. I have done the conversion and my best guess in todays dollars all the bits and pieces will set you back about $3,500.00 +/-. |
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HATERMOE Samba Member
Joined: July 07, 2014 Posts: 2 Location: Islandpark ny
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Posted: Mon Apr 22, 2024 10:28 pm Post subject: Re: The Stupid Question Thread |
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Not sure what you’re trying to say or get at??? I think it’s a simple question??? |
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Cusser Samba Member
Joined: October 02, 2006 Posts: 31389 Location: Hot Arizona
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Posted: Mon Apr 22, 2024 7:32 pm Post subject: Re: The Stupid Question Thread |
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HATERMOE wrote: |
Will a type 2 1700 engine block work for an engine build for my 1974 vw super beetle, I tried to find differences but I couldn’t can someone help?? And before you jump at me yes I searched the search engine and no one has asked this befor. |
See Sept-November 1985 and June 1996 issues of Hot VWs magazine _________________ 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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HATERMOE Samba Member
Joined: July 07, 2014 Posts: 2 Location: Islandpark ny
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Posted: Mon Apr 22, 2024 5:55 pm Post subject: Re: The Stupid Question Thread |
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Will a type 2 1700 engine block work for an engine build for my 1974 vw super beetle, I tried to find differences but I couldn’t can someone help?? And before you jump at me yes I searched the search engine and no one has asked this befor. |
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Cusser Samba Member
Joined: October 02, 2006 Posts: 31389 Location: Hot Arizona
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Posted: Tue Apr 16, 2024 8:53 am Post subject: Re: The Stupid Question Thread |
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I'd check the toe in first. You can do this with a measuring tape and a helper. Pretty much the front of the tires should measure 1/8" less than at the rear; measure from the first "channel" from the outside of the tire tread. _________________ 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7313 Location: NOVA
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Posted: Tue Apr 16, 2024 8:38 am Post subject: Re: The Stupid Question Thread |
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Doing a routine brake inspection on my '73 Super, I discovered the front tires were shot. Looks like the shop I took it to for an alignment last summer after I replaced the front tie rods and ball joints f'd up the front alignment. Car doesn't pull and tracks straight so I figured all was good after I left the shop. Both front tires have worn out in the exact same pattern - on the inside. As the car sits on the ground it looks like outer 50% of the tire doesn't even contact the ground!!! Damn tires had at least 10k left on them too.
Question I have is - can I adjust this myself by rotating the camber bolt on the inner end of the control arms?
Thanks. _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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Sloanstavern Samba Member
Joined: July 31, 2014 Posts: 33 Location: Chandler AZ
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Posted: Mon Apr 15, 2024 7:21 am Post subject: Re: The Stupid Question Thread |
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[quote="mikeonthebike"]
Sloanstavern wrote: |
This windshield was in the bug when I bought it and for the life of me, I can’t figure it out. Those snowflake patterns are in between the glass panes and look like they’re there on purpose.
How on earth could something like that be sold? Anyone ever see something like that?
[
Looks pretty neat but no, that's not supposed to be happening. Windshields are laminated, 2 sheets of glass with safety film in between. Some kind of separation or air pockets in it. Similar to when you see cheap window tinting get air pockets. Time for a new windshield. |
Thanks - Yeah I know it is toast, but that looked to me more like an intenionial pattern rather than a lamination failure, just thought was quie odd |
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Sloanstavern Samba Member
Joined: July 31, 2014 Posts: 33 Location: Chandler AZ
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Posted: Mon Apr 15, 2024 7:19 am Post subject: Re: The Stupid Question Thread |
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EVfun wrote: |
Sloanstavern wrote: |
I am working my way through the install of a universal painless, wiring harness. So far so good . I do have a question about the brake light switches on the master cylinder. I have three leads coming from the switches bundle together into three bayonet connectors. However, my painless harness only has a power feed and a return for the bake switch. Based on the schematic, it looks like one set of wires from the switches, feeds power to the lights, ( red/black 81) which I don’t need since that will come from the new fuse block. The other two must be power and ground, does that sound right? Thanks
74 super beetle
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It sounds like your replacement harness does not have the half brake failure warning light like the stock '74 harness.
Anyway, ignition switched and fused power is applied to terminals 82a and the brake lights are powered by terminals 81 when the brakes are applied. This is a redundant brake light system so you have brake lights even if one half of the master cylinder fails.
K7 is the overly complex dash brake warning light system. It connects to both terminals 81a. If only one of the brake light switches works and the other stays off there will be power on the combined 81a terminals. The extra circuitry in the warning light is a test system that turns the brake warning light on when you first turn the ignition switch on (before starting the engine). |
Thank you - that is very helpful. I solved the problem by trial and error - My brake system was almost dry so 0 pressure on the switch. I bled them , then tested for conectivity and bingo - found the circuit ( you are correct, the 2 redundent leads, then need to complete the circuit with the thrid)
The Painless harness had an input and output to the switch, I left the redundant lead vacant. I guess I could plug it in via pigtail |
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EVfun Samba Member
Joined: April 01, 2012 Posts: 5489 Location: Seattle
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Posted: Sun Apr 14, 2024 9:07 pm Post subject: Re: The Stupid Question Thread |
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Sloanstavern wrote: |
I am working my way through the install of a universal painless, wiring harness. So far so good . I do have a question about the brake light switches on the master cylinder. I have three leads coming from the switches bundle together into three bayonet connectors. However, my painless harness only has a power feed and a return for the bake switch. Based on the schematic, it looks like one set of wires from the switches, feeds power to the lights, ( red/black 81) which I don’t need since that will come from the new fuse block. The other two must be power and ground, does that sound right? Thanks
74 super beetle
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It sounds like your replacement harness does not have the half brake failure warning light like the stock '74 harness.
Anyway, ignition switched and fused power is applied to terminals 82a and the brake lights are powered by terminals 81 when the brakes are applied. This is a redundant brake light system so you have brake lights even if one half of the master cylinder fails.
K7 is the overly complex dash brake warning light system. It connects to both terminals 81a. If only one of the brake light switches works and the other stays off there will be power on the combined 81a terminals. The extra circuitry in the warning light is a test system that turns the brake warning light on when you first turn the ignition switch on (before starting the engine). _________________
Wildthings wrote: |
As a general rule, cheap parts are the most expensive parts you can buy. |
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mikeonthebike Samba Member
Joined: December 08, 2012 Posts: 954 Location: Sacramento, CA
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Posted: Sun Apr 14, 2024 3:14 pm Post subject: Re: The Stupid Question Thread |
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Sloanstavern wrote: |
This windshield was in the bug when I bought it and for the life of me, I can’t figure it out. Those snowflake patterns are in between the glass panes and look like they’re there on purpose.
How on earth could something like that be sold? Anyone ever see something like that?
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Looks pretty neat but no, that's not supposed to be happening. Windshields are laminated, 2 sheets of glass with safety film in between. Some kind of separation or air pockets in it. Similar to when you see cheap window tinting get air pockets. Time for a new windshield. |
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Sloanstavern Samba Member
Joined: July 31, 2014 Posts: 33 Location: Chandler AZ
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Posted: Sun Apr 14, 2024 2:28 pm Post subject: Re: The Stupid Question Thread |
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This windshield was in the bug when I bought it and for the life of me, I can’t figure it out. Those snowflake patterns are in between the glass panes and look like they’re there on purpose.
How on earth could something like that be sold? Anyone ever see something like that?
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Sloanstavern Samba Member
Joined: July 31, 2014 Posts: 33 Location: Chandler AZ
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Posted: Mon Mar 25, 2024 9:51 am Post subject: Re: The Stupid Question Thread |
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I am working my way through the install of a universal painless, wiring harness. So far so good . I do have a question about the brake light switches on the master cylinder. I have three leads coming from the switches bundle together into three bayonet connectors. However, my painless harness only has a power feed and a return for the bake switch. Based on the schematic, it looks like one set of wires from the switches, feeds power to the lights, ( red/black 81) which I don’t need since that will come from the new fuse block. The other two must be power and ground, does that sound right? Thanks
74 super beetle
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vamram Samba Member
Joined: March 08, 2012 Posts: 7313 Location: NOVA
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Posted: Fri Mar 22, 2024 4:36 am Post subject: Re: The Stupid Question Thread |
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ltjohnb wrote: |
vamram wrote: |
The plastic box is an expansion tank for fumes my guess is that the fumes possibly condense in there and return the tank or get blown back to the charcoal canister behind the rear wheel. Someone who understands these things better can pipe in. |
Here is a super detailed walk through of the system.
https://www.thesamba.com/vw/forum/viewtopic.php?t=713211 |
Yep, that's the definitive one. I *always* reference folks to that, especially newbies who get bombarded by the pinheads who tell them to "just rip it out." Only thing missing is it doesn't address the later Super Beetle layout. _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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ltjohnb Samba Member
Joined: April 09, 2020 Posts: 46 Location: Virginia Beach, VA
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Posted: Fri Mar 22, 2024 2:12 am Post subject: Re: The Stupid Question Thread |
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vamram wrote: |
The plastic box is an expansion tank for fumes my guess is that the fumes possibly condense in there and return the tank or get blown back to the charcoal canister behind the rear wheel. Someone who understands these things better can pipe in. |
Here is a super detailed walk through of the system.
https://www.thesamba.com/vw/forum/viewtopic.php?t=713211 _________________ 74 Super Beetle Sedan "Vader"
79 Super Beetle Convertible "Mello"
19 Jetta "Blanco Muerte"
22 Taos "Betty White" |
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Sloanstavern Samba Member
Joined: July 31, 2014 Posts: 33 Location: Chandler AZ
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Posted: Thu Mar 21, 2024 6:00 pm Post subject: Re: The Stupid Question Thread |
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vamram wrote: |
The plastic box is an expansion tank for fumes my guess is that the fumes possibly condense in there and return the tank or get blown back to the charcoal canister behind the rear wheel. Someone who understands these things better can pipe in. |
That sounds right |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7313 Location: NOVA
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Posted: Thu Mar 21, 2024 2:34 pm Post subject: Re: The Stupid Question Thread |
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The plastic box is an expansion tank for fumes my guess is that the fumes possibly condense in there and return the tank or get blown back to the charcoal canister behind the rear wheel. Someone who understands these things better can pipe in. _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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EVfun Samba Member
Joined: April 01, 2012 Posts: 5489 Location: Seattle
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Posted: Thu Mar 21, 2024 2:13 pm Post subject: Re: The Stupid Question Thread |
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Has anyone mapped out what each of those lines does? I know the large hose is to vent the tank while filling it. I’d love to understand the purpose of the rest of the small lines.
The plastic vapor box with 4 small hose barbs often breaks, and the evap system was never inspected in WA. We used to connect together the lines at the left rear of the tank and run the small hose off the large vent line around past the spot for the vapor box and down the left side to the front of the tank, ending it below the tank under the car like 1961-1967 Bugs. _________________
Wildthings wrote: |
As a general rule, cheap parts are the most expensive parts you can buy. |
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