Thread: Push rods too short?

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Last time I had a lifter tick which would come back shortly after it was adjusted out, and on a lumpy cam too; the rocker arm studs were pulling out.

The Oil Pressure is 60lbs and has been strong consistently - The only lifter noise, which is very prominent is from the #1.

The Rocker Studs are threaded, and holding steady at the 40lbs they were torqued at -

On the lifter bore, I considered that - but since we are getting good flow out the top of the pushrod that says that it's not bypassing, correct?

Was I correct on the theory on the lifter being a lifter?

Originally Posted by JustaChevyGuy

The Oil Pressure is 60lbs and has been strong consistently - The only lifter noise, which is very prominent is from the #1.

The Rocker Studs are threaded, and holding steady at the 40lbs they were torqued at -

On the lifter bore, I considered that - but since we are getting good flow out the top of the pushrod that says that it's not bypassing, correct?

Was I correct on the theory on the lifter being a lifter?

in short no . cam could be wearing away thats why it comes back . the oil band in the lifter can bleed off seen it not realy the bore but lack of bore and chevy block casting can be off making a leak for oil to leak out lifter

It comes back in like 40 seconds, increase preload and it dissipates, once I get it to stay gone, the valve is not closing and compression drops...

Originally Posted by JustaChevyGuy

It comes back in like 40 seconds, increase preload and it dissipates, once I get it to stay gone, the valve is not closing and compression drops...

sounds like cam how far is the rocker or poly nut down on that rocker should be level with all others and if so check that valves are coming up a pocket machine rule helps set it across valve retainers