Boring RZ350 cylinders

[Matt96shee]

Hey guys,

I bought a complete RZ350 engine a few weeks ago. It needs bored, possibly just a hone, as the compression is down around 95psi in both jugs. I'm still researching builders on here and procrastinating. My question is, when I send out the jugs do the powervalves need to stay in? I haven't taken the engine apart yet so its probably very obvious what the answer is.

 

Thanks,

Matt

[FireHead]

Hey guys,

I bought a complete RZ350 engine a few weeks ago. It needs bored, possibly just a hone, as the compression is down around 95psi in both jugs. I'm still researching builders on here and procrastinating. My question is, when I send out the jugs do the powervalves need to stay in? I haven't taken the engine apart yet so its probably very obvious what the answer is.

 

Thanks,

Matt

 

If I were doing the work, it wouldn't matter to me if the valves were there or not. You should probably take them out to avoid damage though. It really will all boil down to the preference of the person doing the work. :thumbsup:

[Yaxy]

You probably do not need to take the powervalves out, but my preference is to remove them. After the bore/hone job you will want to clean the cylinders up anyway. To do a really good job cleaning them you will want the powervalves removed. Plus you can check the o'rigns and repalce them as necessary.

 

Patriot Racing and Passion have vast experience with the RZ motor. Patriot did my RZ and am very happy with Dan's work

 

Chris

[jeepman380]

They should stay with the cylinders. After it is bored and honed you need to make sure the powervalves are not protruding out into the cylinder a little bit. If they are they just need to be sanded a little bit to line up with the cylinder.

[cbn70]

Yes I would leave them with the cylinders so after they are bored, they can be checked for clearance with the pistons