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-   -   Springs pressures and valvetrain life (https://www.offshoreonly.com/forums/general-q/325974-springs-pressures-valvetrain-life.html)

ICDEDPPL 05-08-2015 11:33 PM

Mike @ High Flow likes to run most set ups over 200. Gotta be a reason.

BenPerfected 05-09-2015 03:05 PM

Just finished running the valve lash. After two full boating seasons, we did not need to change the lash on a single valve. We could have checked the spring pressure, but we decided to wait until next year. Checking the lash on both engines took about 90 min, the KEPP valve cover system a a big time saver. If you run hydraulic lifters, how do you know if your valve train is wearing before you see broken parts?

Black Baja 05-09-2015 03:52 PM

If it's been setup on a spintron I would be equally concerned of the spring going away as the lash. How much lift is the cam in these combinations?

dereknkathy 05-09-2015 06:51 PM

So, solids are getting a little positive press these days. what about solid rollers on a hyd roller cam?

mike tkach 05-09-2015 07:53 PM


Originally Posted by dereknkathy (Post 4302448)
So, solids are getting a little positive press these days. what about solid rollers on a hyd roller cam?

i know several people that have been doing that for years with great results.

dereknkathy 05-09-2015 11:18 PM


Originally Posted by BenPerfected (Post 4302391)
If you run hydraulic lifters, how do you know if your valve train is wearing before you see broken parts?

simple. you hear the broken parts. then you remove the valve cover. THEN you see the broken parts...

vintage chromoly 05-10-2015 05:43 AM


Originally Posted by dereknkathy (Post 4302535)
simple. you hear the broken parts. then you remove the valve cover. THEN you see the broken parts...

Not sure if you're being sarcastic but........

The idea is that with a solid cam, you can check lash and if something is going south, you can identify that there is a problem before it all comes unglued.

A hydraulic cam will mask small dimensional changes and the end user will not know until it's too late.

Again, maybe you were being coy?

Black Baja 05-10-2015 06:41 AM


Originally Posted by vintage chromoly (Post 4302549)
Not sure if you're being sarcastic but........

The idea is that with a solid cam, you can check lash and if something is going south, you can identify that there is a problem before it all comes unglued.

A hydraulic cam will mask small dimensional changes and the end user will not know until it's too late.

Again, maybe you were being coy?

You can do the same with a hydraulic cam. You would basically be checking the preload.

supermx96 05-10-2015 11:10 AM


Originally Posted by mike tkach (Post 4302480)
i know several people that have been doing that for years with great results.

So if i want to swap my noisy Morel 4603 hydrolic to any other mecanic lifter i can use my actual hydrolic cam and also my actual valve spring?

Cole2534 05-10-2015 11:20 AM


Originally Posted by supermx96 (Post 4302614)
So if i want to swap my noisy Morel 4603 hydrolic to any other mecanic lifter i can use my actual hydrolic cam and also my actual valve spring?

I suspect that's a case by case kind of decision where you would need to know the cam's specifics to determine for sure.


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