SOLID ROLLER VALVE LASH
I built a 388 stroker motor, I have a comp cams solid roller .630 lift. Comp solid roller lifters, +.100 hardened Jegs pushrods and some "no name" stainless steel roller rockers.
Heres my problem, I set my valve lash 022ex 020 int. After I set this I can bump the engine over and my valve lash will be 040 +. Is it possible that the pushrod seat is being pushed in on these new rockers? None of the pushrods are bent. I have ran the motor for roughly 5 minutes after rebuild. I shut it down due to some noise that just came on. I am hoping that these loose rockers are my mystery noise. Any one have problems with crappy no name rockers like this? Thank you JD |
Are you using the exhaust open / intake close method to set your lash?
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What cylinder head?
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To set your lash...When your exhaust valve "STARTS" to "OPEN", you will set your intake lash. Now, when your intake valve "STARTS" to "CLOSE" you set your exhaust lash. When I set mine, I'll do all of the intake valves first in the firing order sequence, then I'll do all of the exhaust valves.
TS1955 |
SOLID ROLLER VALVE LASH
I was using the ex open int close method.. I'm sure using a dial indicator would be best.
The heads are 049 Bowtie aluminum heads.. 55cc chambers. |
solid
You might want to check the lifters/cam lobes. The excess clearance can come from either end of those pushrods.
Otherwise either relash those rockers or put on a different set of rockers to see if the noise goes away. |
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