[nhra4me]

hello
one or two of my 350 hydraulic lifters tick upon start up. oil pressure seems high 70# when motor warms up the ticking goes away and oil pressure drops on idle to about 30# and increases with the rpms what do you think?
thanks
ed

 

[bracketchev1221]

If that's all it does that's fine. The oil will run out of the lifters when shut down especially if shut down for several days. As long as it goes away after a short time of running and stays away, that's fine.

 

[theclencher]

I have a Chevy that developed a lifter tick after sitting unused for a couple years. Just like yours, the tick would go away- sometimes- after it warmed up. Dumped some Seafoam in the crankcase and that fixed 'er right up.

I normally don't believe in additives of any kind and was skeptical that it would work, but the results proved me wrong- at least in that case.

For the couple bucks a can of Seafoam costs, it's worth a try.

 

[zwede]

I've had great luck with Marvel Mystery Oil freeing sticking lifters. A pint in the oil clears it right up.

 

[nhra4me]

thanking everyone!!!
ed

 

[chevfan_1]

ATF also works good to free stuck lifters. Just don't drive or run the engine very long with it in the crankcase.

 

[JamesRS]

I've had great luck with Marvel Mystery Oil freeing sticking lifters. A pint in the oil clears it right up.

I've used Marvel's Mystery oil also, great stuff on sticky lifters.

 

[Bob West]

Any connection between MMM and ATF? clever marketing?

 

[milestone]

Local GM dealer EOS- engine oil supplement- 30 years been useing it works

 

[SWHEATON]

If it was stuck lifter or it had dirt in it will usally tick all the time. But if it is a stuck lifter the Marvel mystery oil is the way to go as mentioned above.

If you try the Marvel and the tick is still there then try what i mentiion below.

When the lifter shuts up after the oil pressure is up or when it heats up thats usually valve/s that are out of adjustment either from when the cam was installed or over time as valvetrain had worn in some.

So re-adj the valves to approx 1/2 turn down from zero lash and i bet your sartup lifter tick/s will be gone.

Note,be watching for any valves that are not opening as far as others of the same type (int or ex) when adj the valves which would indicate a lobe/s going flat.

Scott