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-   -   Chain Failure Engine. What Next? (https://rennlist.com/forums/928-forum/1113863-chain-failure-engine-what-next.html)

Landseer 12-01-2018 06:36 AM

My neighbor was in front of me that morning going to work.
He took off pretty quickly, I chased him out of the neighborhood with foot into it pretty far for the first couple hundred yards.
(996 T v 928)
Ran great the remaining 11 miles to work.
At lunch, on the start, it failed.

This car, remember, was the van winkler, which was parked with 70K mi and sat a decade in Mass before Stan Shaw and I rescued it.
Was interested in your pic of the headgasket. I had worried about its condition for years based on all the discussion about corrosion.
Had what appeared to be new green antifreeze in it when we got it, but it hadn't been changed in years.

Crumpler 12-01-2018 05:58 PM

Replacement head and cams on the way. Thanks Tom (and Mark).

So I was able to get out there and clean up the valves and then used some lapping compound and the old head to get them renewed.
They passed the drill test with the straight edge and then held fluid, I used gasoline instead of kerosene.

https://cimg3.ibsrv.net/gimg/rennlis...08b05c117.jpeg



https://cimg1.ibsrv.net/gimg/rennlis...e2881b9b0.jpeg

Crumpler 12-02-2018 08:48 PM

Got the second head off the block tonight, amazing how quick you can do it when you know what you are doing, right?
Anyway, everything else looks good.
I was going to break it all the way down, and then decide if it will come back as a spare stock engine -- or will I go nut$$$ and do a performance rebuild, and then put it in the 86.


https://cimg2.ibsrv.net/gimg/rennlis...20c7913f7f.jpg



The Forgotten On 12-04-2018 05:11 AM

I vote performance build. Stick in some GB windage trays, Colin's triflow cams, sharktune it, and enjoy some torque :)

Crumpler 12-04-2018 09:54 PM


Originally Posted by The Forgotten On (Post 15473584)
I vote performance build. Stick in some GB windage trays, Colin's triflow cams, sharktune it, and enjoy some torque :)

You convinced me me Blake ;)


Mrmerlin 12-04-2018 10:29 PM

if you swap cams with Colins then you may also be using different valve springs as part of the swap

Crumpler 12-09-2018 08:06 PM

Only surprise was a cam tooth must have found its way to the pan and must have been thrown around on the crank.

https://cimg7.ibsrv.net/gimg/rennlis...9a94f69f4.jpeg


Pulled piston (1). Not too shabby.


https://cimg2.ibsrv.net/gimg/rennlis...4fbe86832.jpeg


https://cimg5.ibsrv.net/gimg/rennlis...c71d3280d.jpeg


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