Xf 5.0 dealer says cracked piston!
#21
#22
https://www.summitracing.com/parts/cgt-c15000-040
https://www.summitracing.com/parts/cgt-c15001-040
#23
Join Date: Sep 2008
Location: Damon /Houston, Texas
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#24
Wouldn't they have taken out all the intake piping from the top to access the accessory belts and tensioners? That's where something could have been dropped in the intake.
#25
Why did he remove material from the head? Did he say it was warped? Shouldn't have done that unless it was warped. If it was warped, why was it warped? Did you or a previous owner overheat the engine previously?
Last edited by lotusespritse; 06-17-2019 at 10:03 AM.
#26
Join Date: Sep 2008
Location: Damon /Houston, Texas
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1 more work and not needed when the tensioner is so easily reached underneath
2 anything i can do to avoid taking off the intake tubes that are crack prone with age i like to avoid to save a customer money if avoidable
#27
Depends on how much material was removed. I had the heads on mine resurfaced before refitting - they were measured within spec so not warped, but with these newer multi-layer steel gaskets they're really sensitive to imperfections/scratches etc in the mating surfaces and I found it nearly impossible to get the surfaces of the head remotely clean of old gasket material and just general scum, so it seemed like the best choice.
#28
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