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-   -   Roller rocker wear (https://www.offshoreonly.com/forums/general-q/378990-roller-rocker-wear.html)

540Fever 04-21-2023 12:29 PM

Roller rocker wear
 
I’ve got about 4-5 hours of run time on the new motor. Would you expect to see wear marks on the roller tips this soon? They all have wear mainly on the outside edge of the roller.

Thanks

GPM 04-21-2023 12:50 PM

What brand are they ?

540Fever 04-21-2023 12:59 PM

Comp Cams Pro Magnum

540Fever 04-21-2023 01:03 PM

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540Fever 04-21-2023 01:06 PM

They're supposed to be new rockers, but I'm not so certain which is why I ask. They were the same ones I had in the motor originally.

GPM 04-21-2023 01:20 PM

Why does everything look dry

GPM 04-21-2023 01:23 PM

It could be my eyes, but I'm used to seeing everything soaked in oil after running.

540Fever 04-21-2023 01:24 PM

It was a little milky condensation from sitting so I wiped them off.

F-2 Speedy 04-21-2023 01:50 PM


Originally Posted by GPM (Post 4865241)
Why does everything look dry

bingo, looks the same to me
EDIT: what kind of oil pressure are you seeing ?

540Fever 04-21-2023 02:06 PM


Originally Posted by F-2 Speedy (Post 4865245)
bingo, looks the same to me
EDIT: what kind of oil pressure are you seeing ?

I wiped the rockers off because they had milky condensation on them. Oil pressure is good 60+ at idle

F-2 Speedy 04-21-2023 02:11 PM

And you think the milky substance is due to just sitting ? or is there another issue.

540Fever 04-21-2023 02:22 PM

I think it's just from sitting over the winter - not too concern with that. I just fired it up for the first time this spring, so I could take another look but my assumption is that oiling is good.

I guess to hone in on my question. I'm questioning if the shop that did the rebuild actually put new rockers on. The wear after 4-5 hours seems excessive and sort of like they looked before. They had issues getting the Comp ones and told me they were going to put Crane ones on. I opened it up and sure enough it's the same Comp ones I had beore. However, maybe the found a set of Comp rollers. The wear marks is what's making me question it and I paid for new rockers.

PQ290Enticer 04-21-2023 02:27 PM

Is this still the build from the guy that wouldn't respond to your questions or is this the 2nd builder? How many hours were on your engine before the rebuild? In other words, maybe the question is, do these "new" rockers look like they have several hundred hours on them?

F-2 Speedy 04-21-2023 02:30 PM

Sounds like they told you a story, if you paid for new Crane ones and they aren't on the engine they owe you what they billed you for, Im sure they never thought you'd open it up

540Fever 04-21-2023 02:31 PM


Originally Posted by PQ290Enticer (Post 4865253)
Is this still the build from the guy that wouldn't respond to your questions or is this the 2nd builder? How many hours were on your engine before the rebuild? In other words, maybe the question is, do these "new" rockers look like they have several hundred hours on them?

Wrong guy. I only had one shop build it.

Yes, that is the question I just asked. Would you expect this wear out of 4 hours run time?

F-2 Speedy 04-21-2023 02:33 PM

Not really unless there is an oiling issue, is there milky on the dip stick

540Fever 04-21-2023 02:34 PM


Originally Posted by F-2 Speedy (Post 4865254)
Sounds like they told you a story, if you paid for new Crane ones and they aren't on the engine they owe you what they billed you for, Im sure they never thought you'd open it up

Yeah that’s my concern. I don’t care if they’re Comp or Crane if they’re new. They look like they have some hours in them to me.

540Fever 04-21-2023 02:37 PM


Originally Posted by F-2 Speedy (Post 4865256)
Not really unless there is an oiling issue, is there milky on the dip stick

Just pulled it looks good, fresh oil from when I changed it last fall.

GPM 04-21-2023 02:38 PM

Doesn't look like you're getting a lot of oil to the rockers. Maybe there was some debris left in the block

540Fever 04-21-2023 02:43 PM


Originally Posted by GPM (Post 4865259)
Doesn't look like you're getting a lot of oil to the rockers. Maybe there was some debris left in the block

I just wiped them off. I’ll pull another cover after just firing it to see bit I don’t think it’s an oiling issue. I think it’s an old parts issue.

Wally 04-21-2023 03:03 PM

Try pulling the one rocker that looks the worst and see if you have any corresponding wear on the valve stem where it contacts....If not then id say its just re-used parts.....otherwise there may be something else to investigate.....maybe debris in the oil from the fresh build still going around the motor??


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