Sick of this and about to give up.

[sb001]

[sb001]

Welp-- I actually remembered that I had another spare old control valve with a broken solenoid terminal in a box. So rather than risk damaging my main unit I decided to practice on this one instead. And it's a good thing I did!

I tried coming at it from the other side:

Tried gently tapping that spacer to see if the diaphragm would fall out the other side, but it didn't.

SO, I tried pulling more from the other side and sure enough I tore the outside of the small rubber on the other end of the rod (what arrow points to in picture here):

Apparently, this piece of rubber on that end of the diaphragm rod was sealed to the dished support that it sits in (#28 in the diagram above.) so I needed to actually pry the whole support out first. Oops.

Anyway, with everything out now you can see the two screws that hold the diaphragm housing to the valve housing. Wow I CANNOT get these screws out at all- even my cordless screwdriver won't turn them. This is apparently the last thing I need to remove before being able to get to the check valve parts...
_________________
I'm the humblest guy on this board.

1969 autostick sedan, family owned since new
1600 SP engine
Solex 30 PICT 3 carburetor
Bosch 113905205AE autostick distributor

[johnnypan]

Take a center punch and hammer and gently tap the screw in a counterclockwise direction,it works like an impact wrench.

[Eric&Barb]

Another trick is to try to turn the screws ever so slightly tighter and then try to loosen. If you feel it wiggle slightly, repeat tightening/loosening moving more and more as you work it loose.
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In Stereo, Where Available!

[SBD]

[Mr.Duncan]

[sb001]

Am i just looking for a sticking check valve up under there once I get it apart? Or is there something else I should be looking for
_________________
I'm the humblest guy on this board.

1969 autostick sedan, family owned since new
1600 SP engine
Solex 30 PICT 3 carburetor
Bosch 113905205AE autostick distributor

[johnnypan]

[sb001]

I took my working control valve apart tonight, I posted a thread about the disassembly procedure here if anyone is interested:

http://www.thesamba.com/vw/forum/viewtopic.php?p=8134331#8134331


Long and short is, I did find some crud inside especially on the screws holding the diaphragm housing to the main valve housing:

So I soaked them in carb cleaner (after removing all the rubber and plastic parts of course) and I will be reassembling the control valve tomorrow-- we'll see if it makes a difference after I get the engine bay back together (still have to get the thermostat rod and flap parts and reinstall later this weekend.)
_________________
I'm the humblest guy on this board.

1969 autostick sedan, family owned since new
1600 SP engine
Solex 30 PICT 3 carburetor
Bosch 113905205AE autostick distributor

[vamram]

[sb001]

The rubber inside the control valve doesn't seem to be shot at all-- still soft and pliable. Maguiar's makes some kind of rubber cleaner/ restorer I think, of course it won't magically restore hardened rubber but it will protect good condition rubber from deteriorating as fast I think.
One major cause of hardened rubber is UV light, probably one of the reasons the rubber in the control valve is still in good shape--it never sees the light of day.
_________________
I'm the humblest guy on this board.

1969 autostick sedan, family owned since new
1600 SP engine
Solex 30 PICT 3 carburetor
Bosch 113905205AE autostick distributor

[Chochobeef]

Atleast you are putting forth the effort to resolve your problem. JP does genuinely sound like he is trying to help you once you get past the gruff exterior.

You found a small problem with your oil cooler. Now you should get better oil flow since it won't be restricted. Your cleaning up your control valve. Again looks like you are taking the right steps forward.

I'm sure you can get the whole of the problem licked by doing all the small things which add to one big thing. I look forward to all your doing and the results.

All I can offer now is words of encouragement. Keep at it. There are people who want to see you fixed and running happily.

[iowegian]

[Eric&Barb]

So what is the width of the cooling fan??
_________________
In Stereo, Where Available!

[johnnypan]

[sb001]

[Mr.Duncan]

[johnnypan]

[sb001]

I'd be happy to report back the size of the fan

But, the top left bolt holding the generator backing plate WILL NOT come out, it jut spins in the hole, like the threads are not catching to pull it out. Tried everything.... tried getting a flathead screwdriver underneath the bolt head and prying while turning the bolt, tried reaching in to the shroud and pushing from behind while turning the bolt, tried holding the bolt with a pair of pliers and lifting the whole fan shroud and stomping down on it No luck that sucker is not coming out. Unbelievable
_________________
I'm the humblest guy on this board.

1969 autostick sedan, family owned since new
1600 SP engine
Solex 30 PICT 3 carburetor
Bosch 113905205AE autostick distributor

[johnnypan]