Vibrations

[rdbishop]

OK Dallas, Here's one for you.

My 8-92t vibrates in neutral at any rpm. It has done this since I dropped a valve last year. My 92 is 440hp and the shop that worked on it put a head and piston from a 450+hp 92. A tune up has been done and it runs great, no smoke, but seems to vibrate more under acceleration,(load). Any Ideas?

Richard

[Just Dallas]

Removed

[rdbishop]

Your gonna make come see you, huh?
Richard

[compedgemarine]

I am sure Dallas knows the problem but my first question would be are the piston and rod weights the same? if the only moving part changed was one cylinder then it sounds like an imbalance.

[rdbishop]

Could be. I'll probably have to pull the head and put anoyher piston and sleeve.

[Just Dallas]

Removed

[rdbishop]

When is Dennis coming to see you?

[luvrbus]

Dallas will get to the bottom of it but sounds like someone tried to adjust the valves with the valve bridge adjustment or did not not adjust the bridges before installing the rockers probably has a burned valve by now or he may need one of the high dollar harmonic balancers the 8v92 uses.  


good luck

[rdbishop]

Thanks Clifford, Just what I wanted to hear...

[bryanhes]

Richard,

Is that worse than a differential   

Bryan

[rdbishop]

MUCH!!!!

[bryanhes]

If it wasn't for bad luck lately you might not have any 

[Dreamscape]

Keeps him out of trouble and on his toes!

[luvrbus]

Bryan, it not a big deal for Richard he has had that engine out so many times from the 7  I am beginning to think he has Velcro or zippers on it lol call me if you need parts Richard I have some extras


good luck

[rdbishop]

Clifford, you want me to use Eagle parts on a MCI?