oil leak...

JohnnyDemonic · Samba Member Joined: October 07, 2004 Posts: 51

411 wagon... I'm loosing about a 1/2 quart a day... it's on the left side of the engine, but I can't tell where... I'm guessing a bad oil cooler gasket? If that's where the leak is, can I fix it without dropping the engine? I know on a bug you can remove the decklid & take off the doghouse with the engine still in... can I do the same on my 411?

glutamodo · Posted: Wed Apr 18, 2007 4:42 pm Post subject:

I'm not sure - on a type 4 engine the studs for the oil cooler point towards the rear of the car, and they are pretty long. To get it off, the fan shroud has to be unbolted and moved back quite a ways. I'm not sure if there's enough room behind the engine in a 411 body to do this with the engine installed.

Wildthings · Samba Member Joined: March 13, 2005 Posts: 50357

The most likely cause of the leak is a bad oil pressure sending unit. Easy to check and replace.

JohnnyDemonic · Samba Member Joined: October 07, 2004 Posts: 51

JohnnyDemonic · Samba Member Joined: October 07, 2004 Posts: 51

wouldn't a bad oil pressure sending unit make the oil light come on all the time? ie: low oil pressure? as of right now, the oil light only comes on when the oil is about 1/2" below the bottom line on the dip stick

vwfye · Samba Member Joined: April 15, 2000 Posts: 7661

not really... the unit is still sending a reading, but physically leaks oil from the unit. remember, they fail this way and are under constant pressure while leaking (big leak) you will know if this is the issue... the unit will have oil on it and directly below it on the case.
_________________
64 No'back Speedster "Pearl"
1980s Sand Dragster "The Plunger"
LME "Little Giant Killer 3"

lams116 · Posted: Wed Nov 14, 2012 9:13 am Post subject:

Did it turn out to be the sensor? I've got a leak at the oil cooler on my 411 wagon and I'd be curious to know what happened and how easy/hard it was to fix.

Amroybal911 · Posted: Thu Nov 15, 2012 5:57 pm Post subject: Oil leak too

I just started a 412 after 15 years and it seems to be leaking a lot I'd oil from the front of the motor between the trany and motor! Any one have any ideas or could it be the sending unit too draining out the front of the motor?

glutamodo · Posted: Thu Nov 15, 2012 9:54 pm Post subject:

After that many years I'd suspect your flywheel seal first. Worse would be that an oil gallery plug came loose... which I've seen happen on type 4 blocks.

Amroybal911 · Posted: Thu Nov 15, 2012 10:49 pm Post subject: Oil leak!!

I just bought this 412 and hoping to get it running without any major problems! It ran for about 20 minutes and came back the next day and a puddle of oil under the motor wtf!!. Tell me more about the flywheel seal! This is all new me I have never worked on a Vw before! Please give me more info thanks Andre

glutamodo · Posted: Fri Nov 16, 2012 11:10 am Post subject:

I thought I answered this last night... Confused

Anyway... It's just the big seal where the flywheel, or I guess on most type 4s it would be a drive plate, sits in the engine case opening. The engine has to come out and the drive plate or flywheel has to be removed to get to it - as well as the adjacent oil gallery plugs.

Some call it the "rear main" seal but the correct logistical term for it, is the front main seal, since it is at the front of the car. (There is a rear seal as well - a much smaller seal that seals the hub to which the cooling fan is mounted)

http://www2.cip1.com/ProductDetails.asp?ProductCode=VWC%2D029%2D105%2D245%2DBS

Image may have been reduced in size. Click image to view fullscreen.

Here's a factory photo showing them installing that front main drive plate/flywheel seal using the VW191 factory installation tool (which is a nice thing to have but not necessary) and I added captions pointing out those oil gallery plugs.

-Andy

Amroybal911 · Posted: Fri Nov 16, 2012 4:51 pm Post subject: Oil leak!!

I am going to try and get the motor out next week and go through it! I am also having vacuum problem. Reason I bought the 412 because it ran on propane set up with an Impco ca300a system and century G85 regulator that appears that I am not getting enough vacuum to suck the diaphragm open to let the propane into the intake any ideas? [/img]

glutamodo · Posted: Fri Nov 16, 2012 5:20 pm Post subject:

You might want to start a new thread specifically about the Propane issues. I've never worked on any Propane conversions before so I'm not much help on that one. I wonder if one of the other forums might yield more answers as well.

Amroybal911 · Posted: Fri Nov 16, 2012 10:29 pm Post subject: Oil leak!

Thanks for the info on the oil leaks and I will post another forum on Vw propane. Thanks Andre


Hello! Log in or Register \| Help \| Donate \| Buy Shirts	See all banner ads \| Advertise on TheSamba.com

	Forum Index -> 411/412	All times are Mountain Standard Time/Pacific Daylight Savings Time
Page 1 of 1