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what NOT to use on rebuilding engine

Well,this becoming common thing here in Bohemia.Once a while i get to do engine which was in the hands of a mechanic with no clue or i`d say wants to be secure of oil leaks.
Cleaning this stuff off is not fun ..never mind all that crap inside the engine.

So do not use silicon stuff on these engine ,only recommended adhesives ...and only a little of it.
here are some samples i had to deal with and now dealing with another engine now.
1st is 993
2nd that Bohemian Singer i just worked on ..it is coming back for oil leaks and new oil return tubes
Notice the cylinder heads and through bolts
3rd
too much stuff on chain housing covers...





the last pic is the best , if you can find under the silicone the part;-)??

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1985 911 with original 501 708 miles...807 421 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.

Last edited by proporsche; 08-12-2024 at 12:35 PM..
Old 08-12-2024, 01:39 AM
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Clearly done by people who have a little (dangerous) knowledge and run with it. Wait till they plug an oil orifice with all that excess floating around, then the real trouble begins.
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Old 08-12-2024, 05:18 AM
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Originally Posted by brighton911 View Post
Clearly done by people who have a little (dangerous) knowledge and run with it. Wait till they plug an oil orifice with all that excess floating around, then the real trouble begins.
that is one more reason i am doing this engine complete...as the others when i see this.
The last engine before 2 last one had the oil tubes for rockers totally plugged..

Ivan
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1985 911 with original 501 708 miles...807 421 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.
Old 08-12-2024, 07:18 AM
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Ugly.
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Old 08-12-2024, 12:32 PM
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Ough .... Seems to be that Dirko red stuff.
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Old 08-12-2024, 01:03 PM
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Originally Posted by AndrewCologne View Post
Ough .... Seems to be that Dirko red stuff.
It is actually something i would use on Chevy Monte Carlo back in the USA for valve cover gasket;-)back in the 1980`s...

The grey Dirko can be used but without the paper gaskets

Ivan
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1985 911 with original 501 708 miles...807 421 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.

Last edited by proporsche; 08-12-2024 at 11:26 PM..
Old 08-12-2024, 01:09 PM
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Exactly what this car on BAT looked like too:

https://bringatrailer.com/listing/1970-porsche-911s-coupe-28/

Pic 97:

Old 08-13-2024, 06:24 AM
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i always "paint" my paper gaskets with a thin film of loctite 574 and have never had any issues.. But i had a friend show me a dish full of silicon he pulled out of an engine he was rebuilding due to oil starvation.. and we all know why.
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Old 08-13-2024, 06:48 AM
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Quote:
Originally Posted by theiceman View Post
i always "paint" my paper gaskets with a thin film of loctite 574 and have never had any issues.. But i had a friend show me a dish full of silicon he pulled out of an engine he was rebuilding due to oil starvation.. and we all know why.
574 is magic stuff. After my shift rod gasket started leaking i just pressed out a bit of the leak and it stopped. Great stuff and especially for valve covers.
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Old 08-13-2024, 02:20 PM
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Oh ya one more thing -not adhesive related .If you work on your engine and drop something inside make sure you get it out not just replace it.Like this engine -that schmuck who did the cam.cover gaskets dropped the gear pin in and just replaced it with new.. and this is what happened.....
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1985 911 with original 501 708 miles...807 421 km
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Old 08-14-2024, 07:41 AM
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i got a little buzy here..but this repair beats them all..what an idiots..and they gave it to the client this car back with major oil leaks and said sorry.....It will be a challenge to fix this--have to take the engine apart ......so, do not never ever use too much force on this through oil bolt for the right camshaft.
Got that sucker out ...






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1985 911 with original 501 708 miles...807 421 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.
Old 03-20-2025, 03:26 AM
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See kids that’s why you don’t take LSD and work on customers engines. Can’t believe the guy who did that actually has a shop and clients.
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Old 03-20-2025, 04:52 AM
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Quote:
Originally Posted by Dpmulvan View Post
See kids that’s why you don’t take LSD and work on customers engines. Can’t believe the guy who did that actually has a shop and clients.
yup ,long time Porsche repairs in these lands..i have done so many screw ups after him and another specialist who likes the red silicone;-)))He has big overhead-me,just a hobby;-)
Ivan
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1985 911 with original 501 708 miles...807 421 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.

Last edited by proporsche; 03-20-2025 at 06:15 AM..
Old 03-20-2025, 06:12 AM
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Quote:
Originally Posted by proporsche View Post
2nd that Bohemian Singer i just worked on ..it is coming back for oil leaks and new oil
Does that Singer have a Cosworth, Ed Pink, or Porsche Motorsport engine?
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Old 03-20-2025, 07:17 AM
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Shows you that you cannot trust the details on BAT.
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Old 03-20-2025, 08:21 AM
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Originally Posted by 2jmotorsports View Post
Does that Singer have a Cosworth, Ed Pink, or Porsche Motorsport engine?
hi there

oh no, none of the above.it is 1982 911Sc i just made it for the owner to run like street rocket after several so called 911 mechanics failed to find the problem with it for many years..The owner did, i must say very very nice job on the body-so i call it Bohemian Singer...

https://www.youtube.com/watch?v=46hRqXZCadc




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1985 911 with original 501 708 miles...807 421 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.
Old 03-20-2025, 09:50 AM
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Originally Posted by 911 Rod View Post
Shows you that you cannot trust the details on BAT.
possibly true...we do not have it here in Bohemia..but i did get to work on a 911 from Beverly Hills Cars Club..nightmare for sure...when it arrived in Europe

Ivan
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1985 911 with original 501 708 miles...807 421 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.
Old 03-20-2025, 09:53 AM
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My 930 was like that when I got it from Japan. Several colours of silicone. AND a timing pin in the crankcase. Luckily no damage. Found it in time.
And the sellers report stated 'freshly rebuilt engine'.
It was all downhill from there for the next year. Hard to believe these people are out there. I guess they must offer cheap rates?
Alan
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Old 03-20-2025, 10:12 AM
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Absolutely shocking!
Good luck with it.
Ant.

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Old 03-20-2025, 10:50 AM
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