Puking oil from cylinders after rebuild

[Pruneman99]

Wow that really is puking oil. Check for cracks or the cylinders not seating into the case or damage between the cylinders and case.

No sealer between the cylinders and heads.

[Danwvw]

Well it must be? It's the story we have. The crank is going to shove a lot of oil up against the cylinder openings. Maybe the case cylinder opening decks need checked. Maybe a cylinder did not seat. My spare engine below "1800cc's Webcam 118 and 1.25:1 Rockers" was fine till I revved it up and Oil started flying out the side of cylinders on both sides of the engine. The problem turned out to be cracked cylinders though.
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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

[rodjr]

Permatex The Right Stuff, no leaks, will hold cylinders with the heads off no problem, and doesn't peel off all stringy. Also no waiting for it to dry, it's good to go as soon as you torque it down. I have not used silicone on a single thing since i discovered it, and i have tried it everywhere i used to use silicone with 100% success.

[67rustavenger]

[Dürtwagen]

This is a top view of cylinders 3 & 4 , notice the gap difference between the case and jug, but also notice that where it meets at the head, the fins are level with each other. Is this normal?

And here is 1 & 2

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1974 VW baja bug
1979 Mercedes Benz 300D

[Danwvw]

Yeah it's right but you know what I bet you got a pulled stud.
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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

[mcmscott]

Please change the tittle of this thread from "rebuilt engine" to "I hacked some junk together, what should I do?"
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There are no stupid questions, only stupid people,

68 Ghia
67 T-1
65 Notch
02 Mexican beetle
74 Thing
15 Long travel rail
07 Nomad
05 f-250

[Dürtwagen]

That one that looks like the case saver came out does have threads and screws in but I just realized that could be whwre a lot of oil is coming from
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1974 VW baja bug
1979 Mercedes Benz 300D

[Dürtwagen]

[57BLITZ]

[Dürtwagen]

[Danwvw]

So what is the scoop? Pulled insert? Just not tight? Is the engine still out? If so and it doesn't need inserts ?? then RTV right. If it needs inserts, then, case comes apart right? 10mm studs need inserts.

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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

[Dürtwagen]

The engine is in the car still in the car, I didn’t have time yesterday but I’m free all day today, I’m gunna pull the exhaust off and get as much done as I can today, just sealing everything up . I’m gunna look for the ultra black.
Also I’ve been soaking the oil cooler bracket to clean it
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1974 VW baja bug
1979 Mercedes Benz 300D

[Dürtwagen]

THis cylinder looks like it’s not seated at the bottom, like it’s cocked upwards, is that no good???
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1974 VW baja bug
1979 Mercedes Benz 300D

[Danwvw]

The top head bolts would have to have been tightened down first with the bottom loose to do that. What happens if you remove the rockers loosen all the head bolts and go through both torque sequences again? Do the studs hold? etc...

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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

[Dürtwagen]

Alright so it’s not supposed to be like that I’m guessing. I tightened them in the same sequence as one of the books said, with a torque wrench. Im loosening the bolts now engine should be out in a few min . I got permatex Ultra Black today .
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1974 VW baja bug
1979 Mercedes Benz 300D

[Pruneman99]

Yeah that's the problem. That thing isn't seated at all. I'm surprised the head sealed. Or did it? Check for piston/ring/cylinder damage too.

[Danwvw]

With the top studs coming out of what looks like inserts it could be leaking there. On cases about 1/2 of the stud thread holes are blind and can't loose any oil but some are open to the inside of the engine. I would want to make sure both inserts & studs were sealed with thread sealer locker Blue thread locker sealer on the studs usually red is used on the inserts by a machine shop. Probably a machine shop job though to remove inserts and re seal them with thread locker. I have done it though on ones that weren't thread locked to start with. Had to make a spare stud with locking nuts and a collar.
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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

[modok]

When you replace cylinders on these engines one thing you have to do is set the new cylinders in place with the studs and 6 main nuts in place and see that it sits flat on the case, and see that there is some clearance so you can rotate the cylinder slightly without it hitting anything.
Very common that the cylinders will hang up on the studs, or the case savers, or eachother, or hit the 6 main nuts/washers and you have to grind the cylinder for clearance in these areas. It's not supposed to fit the case tight either. If the case smooshed in and not it's a TIGHT fit int he hole that's NG.

[Dürtwagen]

Alright I got the engine on the stand, I had to take the flywheel and clutch off, I’ll do some investigating now

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1974 VW baja bug
1979 Mercedes Benz 300D