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-   -   When Things Go Bad.... (http://forums.pelicanparts.com/911-engine-rebuilding-forum/842627-when-things-go-bad.html)

Flat6pac 12-13-2014 12:22 PM

When Things Go Bad....
 
Bruce, can you help me with this?
Bring it over, I ll take a look at it.
http://forums.pelicanparts.com/uploa...1418504708.jpg
http://forums.pelicanparts.com/uploa...1418504726.jpg

nice hole in the right side of a 964 engine, chain came right on through.

The further it came apart the more damage found.
Damage started in the right cam box as the cam was frozen in the bearing holes.
I had to drive it out and all the rockers were worn beyond use, including broken.
Cam drive was torn up, seen in picture, locator pin wiped the whole vernier. Cant even remove drive with a gear puller.

Bruce

http://forums.pelicanparts.com/uploa...1418505301.jpg
http://forums.pelicanparts.com/uploa...1418505339.jpg

Intermediate shaft, gear broken and I said to the owner "you must have cut the chain" he said he never touched it.
http://forums.pelicanparts.com/uploa...1418505583.jpg
http://forums.pelicanparts.com/uploa...1418505673.jpg
http://forums.pelicanparts.com/uploa...1418505705.jpg

911pcars 12-13-2014 02:44 PM

Sorry to hear about/see the damage.

Were you able to pinpoint the cause of the damage?

Sherwood

Flat6pac 12-13-2014 03:11 PM

The right cam and carrier went dry, lobes were worn and rockers too. Cam bearings were dry
Bruce

brp914 12-13-2014 03:48 PM

If I recall, there is a small bridge piece that completes the oil circuit from the chain house to the cam tower. Was it present and connected? Anyhow - looks 'spensive!

jhg41977 12-13-2014 04:41 PM

Ouch!

Deanh 12-14-2014 04:18 PM

Ouch is right! My poor baby :(

The cap'n 12-14-2014 04:57 PM

Wonder if the dealers still do the exchange program ... They'll want it together, though.

The Cap'n


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