what do you guys think about this?
Thread Starter
Teching In
Joined: Oct 2021
Posts: 47
Likes: 18
what do you guys think about this? so I just got done building a 5.3 gen4 engine in a 10 Silverado. this thing started out being a dick head to me. Screwed up right from the bat customer bought a China $300 eBay dod kit with the camshaft. Thank God I told him its not my fault if things go wrong. people please dont ever buy that kit. first off the camshafts that originally come in the Gen 4 engines are billet and this Chinese dod kit comes with a cast cam, the lifter treys are junk. the head bolts are not tty. the plate and head gasket might be OK. the lifters are definitely not any good.
anyway I just got done with this build and was looking through some tsb. for the hell of it and just want to see what people who build engines or machine them thinks about what they(GM) are saying about the eyeball test and honing
Important
Some minor scratches may be noticed on the cylinder walls during piston and ring replacement. If the scratch cannot be felt when running your finger nail over it, the scratch is considered normal wear and the block or engine should not be replaced.
Note
It is not necessary to hone or deglaze the cylinder walls. Honing may induce unnecessary cylinder wall and / or piston ring damage if it is done incorrectly and/or not cleaned thoroughly. Cylinder walls should cleaned thoroughly with brake cleaner before installation of the new pistons and rings. Numerous engines replaced for oil consumption have been inspected. The cross hatch has been consistently good and is in specification. As a result, is should not be necessary to measure the cylinders if they pass the visual inspection.
Note
After the piston/ring replacement, it will take 2000-3000 miles for the new rings to seat. Adequate break time is necessary prior to rechecking the oil consumption level.
anyway I just got done with this build and was looking through some tsb. for the hell of it and just want to see what people who build engines or machine them thinks about what they(GM) are saying about the eyeball test and honing
Important
Some minor scratches may be noticed on the cylinder walls during piston and ring replacement. If the scratch cannot be felt when running your finger nail over it, the scratch is considered normal wear and the block or engine should not be replaced.
Note
It is not necessary to hone or deglaze the cylinder walls. Honing may induce unnecessary cylinder wall and / or piston ring damage if it is done incorrectly and/or not cleaned thoroughly. Cylinder walls should cleaned thoroughly with brake cleaner before installation of the new pistons and rings. Numerous engines replaced for oil consumption have been inspected. The cross hatch has been consistently good and is in specification. As a result, is should not be necessary to measure the cylinders if they pass the visual inspection.
Note
After the piston/ring replacement, it will take 2000-3000 miles for the new rings to seat. Adequate break time is necessary prior to rechecking the oil consumption level.
