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-   -   3.0 carbon build up on cylinders (http://forums.pelicanparts.com/911-engine-rebuilding-forum/1063479-3-0-carbon-build-up-cylinders.html)

stubble88 06-07-2020 02:28 PM

3.0 carbon build up on cylinders
 
I have no idea if this is normal or not.
3.0 was told it has about 80k miles on it and ran last year.
So I was just playing around and decided to stick my snake camera into the hole. This is what I see. Massive carbon deposits? Why is it wet looking?
Is this a big concern? Or what the hell am I seeing here? Looks like goo stuck to the walls. Like someone put motor oil into the gas tank.
One cylinder (last pic). Looks clean. Maybe something was poured in there for storage. And maybe it will burn off when I fire her up again. That’s my wishful thinking. Tell me I’m right.
https://app.photobucket.com/images/a...55a~77FXaGVg__https://app.photobucket.com/images/a...zBXQ0C5w0~6A__
https://app.photobucket.com/images/a...w9aLjnM~Llug__

Trackrash 06-07-2020 03:34 PM

Drive it a while and check it again. But really drive it. Maybe an hour on the freeway.

From the looks of it the rings are shot, but until you drive it and have some data, like smoking or oil consumption it's just a guess how bad it may or may not be.

stubble88 06-07-2020 03:58 PM

Motor is not in the car.

E Sully 06-10-2020 03:35 PM

This is what my 3.2 looked like from worn valve guides. I rebuilt the top end.
http://forums.pelicanparts.com/uploa...1591831836.JPG
http://forums.pelicanparts.com/uploa...1591831836.jpg

HaroldMHedge 06-10-2020 04:28 PM

Just pulled my heads on an 87 3.2 due to oil on the intake valves. They look similar to Ed's.

cmcfaul 06-12-2020 12:38 PM

At least they all wore out together.

Chris

89 Carrera 3.2

Dpmulvan 06-13-2020 05:04 AM

Quote:

Originally Posted by stubble88 (Post 10895652)
I have no idea if this is normal or not.
3.0 was told it has about 80k miles on it and ran last year.
So I was just playing around and decided to stick my snake camera into the hole. This is what I see. Massive carbon deposits? Why is it wet looking?
Is this a big concern? Or what the hell am I seeing here? Looks like goo stuck to the walls. Like someone put motor oil into the gas tank.
One cylinder (last pic). Looks clean. Maybe something was poured in there for storage. And maybe it will burn off when I fire her up again. That’s my wishful thinking. Tell me I’m right.
https://app.photobucket.com/images/a...55a~77FXaGVg__https://app.photobucket.com/images/a...zBXQ0C5w0~6A__
https://app.photobucket.com/images/a...w9aLjnM~Llug__

Last pic looks like tiny pieces of metal?? Also looks like You have alusil cylinders.
Check for broken head studs?


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