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-   -   Cam and valvetrain longevity....??? low duration high lift... (https://www.offshoreonly.com/forums/general-q/341258-cam-valvetrain-longevity-low-duration-high-lift.html)

getrdunn 10-06-2016 12:57 PM


Originally Posted by MILD THUNDER (Post 4488937)
I like crane

Is that 651 cam or special grind for R&D purposes only. Wonder if anybody is running 651 with 1.8's?

MILD THUNDER 10-06-2016 12:57 PM

Oh snap.

MILD THUNDER 10-06-2016 01:02 PM

Funny, that wasnt cam motions take on the issue from what I hear. They advised sending the cam in, to make sure it was ground straight and true after seeing the pictures . 0 taper on lobe.

Didnt someone here say there appeared to be a taper issue after seeing the cam pics ?

They did not say " builder error builder error builder error seruo error setup error" , and they are the ones who ground the cam.

Full Force 10-06-2016 01:09 PM

Well I mean it's all my fault duh!!! Just like MER, Orlandi and haxby.... We all must be at fault

ARB38 10-06-2016 01:09 PM


Originally Posted by MILD THUNDER (Post 4489006)
Funny, that wasnt cam motions take on the issue from what I hear. They advised sending the cam in, to make sure it was ground straight and true after seeing the pictures

They did not say " builder error builder error builder error seruo error setup error" , and they are the ones who ground the cam.

Joe I just got of the phone with Cam Motion an hour ago. I have no dog in this fight just stating what they told me. I wanted to find out about the cams in my engines.

offshorexcursion 10-06-2016 01:10 PM


Originally Posted by ARB38 (Post 4489002)
I have called a big talked to Bob and I also called Cam Motion today. My cams are induction hardened 8660 billet steel premium grade cores. There are some better but many not as good. They are better than what the OEM's use for their hydraulic roller cams. After this discussion I am not worried about hardness issues or the cam specs. My boat runs great any it should for a long time.
After following this long thread and others it seems Tim's issues are more than a Bob M issue and more about the engine assembly and also putting all the right parts together to reach his goal. Maybe he should have had someone help with final assembly and checking all the parts to confirm they were all correct.

I honestly wish your build well but...

Let's use some common sense here, do you really think Bob would admit fault when he never has in the past?

No parts supplier would admit a problem with thier product either unless forced to recall it by law.

Good ole Bob hasn't changed one bit...

Not accepting responsibility for your own actions is one of the TOP issues humans have, especially in America. So sad Bob.

Full Force 10-06-2016 01:12 PM

Sooo what exactly is the engine building issue?

Originally Posted by ARB38 (Post 4489015)
Joe I just got of the phone with them an hour ago. I have no dog in this fight just stating what they told me. I wanted to find out about the cams in my engines.


offshorexcursion 10-06-2016 01:13 PM

Let's get back on track......

ANY PROVEN combos here with HUNDREDS of endurance hours run in OFFSHORE conditions?

ANY more tech info advice to share with the community besides a sales pitch?

SB 10-06-2016 01:15 PM

Sorry. Mistaken person.

MILD THUNDER 10-06-2016 01:25 PM


Originally Posted by SB (Post 4489022)
ARB38 has over 300hrs on his. This was posted on the custom cam spec thread.

No he does not. He told me "a few hours so far"


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