317 Head Damage...Opinions?
03-19-2016, 01:21 PM
#22
http://www.audiforums.com/forum/off-...e-wrong-80267/
I think this guy has some piston slap. We should invite him over from the other forum to tell his story in a group therapy session. Piston slap is real. It breaks hearts, ruins lives, and tears families apart. But good news, it's not your fault. And you can get help, here at LS1Tech.com rehab. Stop parking your ride on the other side of the lot so your buddies..kids..girl don't laugh at you when you start it up. Get the help you need...today!
I think this guy has some piston slap. We should invite him over from the other forum to tell his story in a group therapy session. Piston slap is real. It breaks hearts, ruins lives, and tears families apart. But good news, it's not your fault. And you can get help, here at LS1Tech.com rehab. Stop parking your ride on the other side of the lot so your buddies..kids..girl don't laugh at you when you start it up. Get the help you need...today!
03-21-2016, 01:46 AM
#23
TECH Regular
Case in point, this is REAL detonation:
03-21-2016, 09:45 AM
#25
Those marks are absolutely not from detonation, it is from foreign material plain and simple. Piston ring failure or poor intake filtration are common sources for that type of damage. Actual detonation will cause the piston (or other parts) to appear melted or eroded.
Case in point, this is REAL detonation:
Case in point, this is REAL detonation:
03-21-2016, 05:20 PM
#26
Those marks are absolutely not from detonation, it is from foreign material plain and simple. Piston ring failure or poor intake filtration are common sources for that type of damage. Actual detonation will cause the piston (or other parts) to appear melted or eroded.
Case in point, this is REAL detonation:
Case in point, this is REAL detonation:
Normally id agree with you, but since the OP's pictures show clear signs of detonation, its from detonation, plain and simple. What it shows is the source of where the detonation was occurring due to heat, and it begins to melt the areas of the aluminum in the head where it is most porous. Id be willing to bet the spark plugs removed from that cylinder had silver flecks on the ceramic portion of the plug as well, thats a clear indicator of detonation and a sign we often look for when tuning carb'ed engines.
03-21-2016, 08:33 PM
#27
TECH Fanatic
iTrader: (7)
This...
Here's the only pic I could find of what looks like cyl head detonation.
When a head has been damaged from detonation, it looses material...his picture shows material that has been "displaced" ...the material is still all there, just "moved" from whatever foreign material was in those cylinders...
03-21-2016, 09:54 PM
#28
TECH Senior Member
This...
Here's the only pic I could find of what looks like cyl head detonation.
...
When a head has been damaged from detonation, it looses material...his picture shows material that has been "displaced" ...the material is still all there, just "moved" from whatever foreign material was in those cylinders...
Here's the only pic I could find of what looks like cyl head detonation.
...
When a head has been damaged from detonation, it looses material...his picture shows material that has been "displaced" ...the material is still all there, just "moved" from whatever foreign material was in those cylinders...