Plugging oil galleys article...

[superstarvw]

**sorry wrong thread**
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'74 Cabriolet (current)
'70 Ghia (sold), '72 Fastback (sold), '73 Super (sold), '71 Std (sold), '75 Std (MIA)

[superstarvw]

[jeffrey8164]

Why would you do that anyway?
I can understand it on a 50 year old case to make sure all the gunk is out but for the most part I believe it to be unnecessary.

Find out where it’s leaking from first.
I just put together a 2276 and used Brad Penn 20/50 for break in and the first 500. The only leak I have is from a ferkin pushrod tube.
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Volkswagen!
Turning owners into mechanics since 1938.

“Let he that is without oil throw the first rod”
(Compression 8.7:1)

[superstarvw]

Related question: I pulled all the plugs and tapped/plugged them when I built my 1641 this fall. Including the restrictor plug. I am running full flow oil filter with stock pump and CB performance pump cover outlet. I was running high oil pressure, maybe 60 PSI at cold idle and up to ~70 with some revs. 20-30 psi lower when warm. I have about 60 miles on the build.

I have only started the car a handful of times this winter, as it's in remote storage, but I noticed some spotting on the floor a few weeks ago. When I started it yesterday, I noticed the pressure had dropped to 20 psi at cold fast idle. Stopped the engine and looked underneath to see a lake of oil and some fast dripping from the bell housing end...

Pretty sure I toasted my crank seal. Any ideas why? Too much pressure? too thick oil? (20w-50)? too cold on start?

Thanks for any tips. I am going to pull the engine back out and change the seal and check for any leaky plugs.

I am wondering, could I have maybe blocked oil flow with one of my plugs? I checked the ones in the rear of the engine, but I don't remember checking the ones behind the flywheel... Perhaps if my plug was set too deep I am getting high oil pressure and this contributed to a blown seal?

Here are photos from the build this last fall:

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'74 Cabriolet (current)
'70 Ghia (sold), '72 Fastback (sold), '73 Super (sold), '71 Std (sold), '75 Std (MIA)

[RWK]

From my understanding the replacement bearings have the smaller hole for restriction, IMHO the restricter acts more like a trap because its at the end of the oil circuit,causes turbulence allowing dirt to settle out, (common in any hydraulic,pneumatic,or water system) they are always full of junk when removed in stock case's. if they wanted to restrict they would have done so with galley dia. and did later with smaller bearing oil hole. Lack of regular oil changes and/or high mileage engines causes this plug area to fill up allowing dirtier oil to go to bearing and score crank as seen by others, ( stock unfiltered engines). Old enough to have taken apart org. engines all have had larger oil hole in bearing.
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73 Type 181
63 Type 113
63 Type 261- 428 071
62 Type 241-378 025 178 530

[scrivyscriv]

Is there any reason not put the flow restrictor at the #4 bearing saddle inside the case? I think one guy posted that a few pages in, but the photo is so blurry I can't see exactly what he did.
I could put a pipe plug in there and drill it whatever size orifice it needed...

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Robert in Memphis
Dünkelgrügen 1967 Java Green bug thread
Engine rebuild thread
If you're ever in the Memphis area, you are welcome to stop by for advice and help.

[Clatter]

Been running several motors now for years with no restrictor plug..

No sand seal, no issues with oil behind the pulley.

If you really care, make sure your #4 bearing has a small hole.

If you worry about failure in this area, make sure it’s clean and not plugged with crap.

We can put this one to rest now.
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Bus Motor Build

I have excellent news for the world...
There is no such thing as patina.
It does not exist!

[RWK]

No, most just plug the hole, no restrictor, believe the newer style bearings have a smaller hole that does the same, just showing the plug as a way to seal holes when there isn't enough depth to tap, o-rings are used extensively in high pressure hydraulics, they can leak though over time, but with low pressure oil system not likely, then you just pull and replace the ring, just my way of doing that particular oil line, I also have pipe plugs everywhere else. Pipe plugs have a limited number of R&R in a soft metal case, case can break easily so be careful.
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73 Type 181
63 Type 113
63 Type 261- 428 071
62 Type 241-378 025 178 530

[67 Sunroof]

What does this do compared to threading a plug in?
I already have all holes threaded. I was just wondering if the small hole I tapped needs a type of restrictor plug in it?
I’m not sure I would trust a plug with a rubber o ring in the block for years though.
It’s worked for you though!

[RWK]

I used a threadless plug in the vertical galley by the oil pressure sender, seems there wasn't enough mat'l to tap it, IMHO, so made a plug similar to the 1 shown, which is an item I use in mold making for water lines, it just needs to be backed up or held down, no treads to worry about, just a little oring lube and press in, they never leak, and they come out easy with tapped pull hole, hole does have to be accurate though, reamed hole, std. oring tolerance apply. Its been in 15 years.

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73 Type 181
63 Type 113
63 Type 261- 428 071
62 Type 241-378 025 178 530

[67 Sunroof]

Yeah if you don’t mind I would appreciate it.
Thanks for your insight!

[RWK]

That's what I do, I have done "all" of them, especially in old case's, anywhere there is a plug there is a chance of debris collected there, it's kind of like water/plumbing systems, where ever there is a dead head there is always junk there, (no offense to Dead Heads, for I'm one also) or a faucet that hasn't been turned on in awhile. I will post a pic later of how I pulled and plugged the one above the oil pressure sender on the top of case.
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73 Type 181
63 Type 113
63 Type 261- 428 071
62 Type 241-378 025 178 530

[67 Sunroof]

[DeathBySnuSnu]

[RWK]

Filter maybe, catch all definitely! all plugs I have pulled had crap on them and the galley is always full of crap,look close at pic of case, debris down it the hole,
this case had been "cleaned".

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73 Type 181
63 Type 113
63 Type 261- 428 071
62 Type 241-378 025 178 530

[modok]

The oil flow at the bearing will be determined by the bearing clearance and size of the oil hole in the bearing.

it is possible that the "restrictor" is actually a filter.

[67 Sunroof]

Bump!
I just drilled all of mine out and tapped them. (Even the #4 bearing one)
Any up to date info on longevity of just using the plug in the hole without a restrictor?
It makes sense that only as much will go through that small hole in the bearing as it will allow-effectively reducing the amount of oil, right?

[pupjoint]

bump. been a while now. anyone running without the restrictor having issues oil coming out from pulley on high mileage engines?

[c.ruber]

Glad I revisited this thread...
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...and progress is not intelligently planned...

[haz77]

Hi all,

Been linked to this thread by DM who posted on here earlier as hes advising / helping me with my type3 rebuild.

Now Ive also followed the huelsmann way, and now find my self in the tricky what to do with #4 plug situation also

Man theres been a lot of input & theory bashing on this here but I think I get the picture & can see most sides of the arguments, however my thoughts / concerns are:-

I like the look of the stepped restrictor either with a bolt through a plug or by getting a machine shop to make one,, BUT,,, worries me that if the centres of the restrictor & the threaded plug where off then you could possibly end up blocking the outlet hole a bit like a cam lock effect, wonder if putting a drilled plug down the throat of the supply passage or into the bearing journal outlet would be a safer bet?

I do how ever see reason with what is being said about the bearing restricting the flow thus making the plug a bit of a red herring but dont really want to have to pull the engine down again when Im proved wrong

Finally, what is the reason that it has been said to push a alloy rod into the bearing journal rather that to drill, tap & screw a plug in here to, is it due to the size of this oil way?

Cheers.