617 valve lash
617 valve lash
Adjusted my valves the other day because I thought the motor sounded kinda clacky.
I cannot have been 10,000 since I was last in there and yet every one of the exhaust valves was tight as could be against the cam. While every intake valve was right where it should be.
It this is how it pretty well always goes for me. That the exhausts are tight and intakes need no adjusting.
What does that tell you? Nothing? I guess I need valve adjust every 5k or 8k cause 10k is way too long.
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
I may have asked this before but don't know if I got any valuable responses.
Adjusted my valves the other day because I thought the motor sounded kinda clacky.
I cannot have been 10,000 since I was last in there and yet every one of the exhaust valves was tight as could be against the cam. While every intake valve was right where it should be.
It this is how it pretty well always goes for me. That the exhausts are tight and intakes need no adjusting.
What does that tell you? Nothing? I guess I need valve adjust every 5k or 8k cause 10k is way too long.
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
Higher exhaust temps. could cause exhaust valve stretch.Higher rpm usage could also do same,and cause seats to beat -in. Valve adj. to be set cold,but below freezing to increase clearance. Nothing wrong with increasing clearance a small amount,and or adj.at less mileage.
-Jesse
80 300sd hy35, front mount intercooler, w115 intake, rack limiter removed, Alda removed, full load turned up, boost, ebp, trans, pyro, egr delete, 3.5" exhaust, e-fan, 16x8 rims with, 245/50 tires, lowered, bilstien 5100's, 12" front brakes, 2.65:1 diff.
97 f250 psd 4x4, crawler
70 f250 390
83 Volvo 242, lots of mods
66 Volvo amazon
10 mistsubishi fuso service truck.
Mine were all in spec after 10k and I rev the piss out of my car with some decent egts.
-Jesse
80 300sd hy35, front mount intercooler, w115 intake, rack limiter removed, Alda removed, full load turned up, boost, ebp, trans, pyro, egr delete, 3.5" exhaust, e-fan, 16x8 rims with, 245/50 tires, lowered, bilstien 5100's, 12" front brakes, 2.65:1 diff.
97 f250 psd 4x4, crawler
70 f250 390
83 Volvo 242, lots of mods
66 Volvo amazon
10 mistsubishi fuso service truck.
Quality, mileage,age ,temp.stress all plays a part. Soft cylinder heads do occur even on Mbz. (been there).
Why only exhaust side,++ add heat!
Keep those valves adjusted,---Roll On.
You"re Question; What does tight exhaust (only) Say.IF each time only exhaust are tight. Not a normal condition! Almost always serviceable. Will be ok inless you run out of valve adj. thread. Why? tight. Valves stretching,valve seat area sinking in or both. No other possible reasons!
Quality, mileage,age ,temp.stress all plays a part. Soft cylinder heads do occur even on Mbz. (been there).
Why only exhaust side,++ add heat!
Keep those valves adjusted,---Roll On.
(11-21-2011, 07:45 PM)Hercules Higher exhaust temps. could cause exhaust valve stretch.Higher rpm usage could also do same,and cause seats to beat -in. Valve adj. to be set cold,but below freezing to increase clearance. Nothing wrong with increasing clearance a small amount,and or adj.at less mileage.
I have read that low RPM High load is what causes seats to wear more? Something like there is more pressure closing against the valve than when there is a higher RPM.
I read that in a Mercedes Tech manual
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
11-22-2011, 04:53 PM #6(11-21-2011, 07:45 PM)Hercules Higher exhaust temps. could cause exhaust valve stretch.Higher rpm usage could also do same,and cause seats to beat -in. Valve adj. to be set cold,but below freezing to increase clearance. Nothing wrong with increasing clearance a small amount,and or adj.at less mileage.
I have read that low RPM High load is what causes seats to wear more? Something like there is more pressure closing against the valve than when there is a higher RPM.
I read that in a Mercedes Tech manual
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
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