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Is this cam useable?

Fiascoxl

Well-known member
Joined
Jan 25, 2013
Messages
320
Location
Stuarts Draft, Va
I would'nt use it, I have never seen one visually grooved like. I am pretty sure it can be repaired though, but the cost of that may not be as effective as finding a used replacement. Try here click
 

AllanL

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Joined
Aug 4, 2008
Messages
294
Location
NV
repairable...

it can be re-sleeved, just like what they do to block piston bores to return to stock bore...

are all the bearings like this, especially where the front [cam gear] oil seal sits?
 

donniekak

Well-known member
Joined
Jan 1, 2009
Messages
748
Location
surprise az
Get it polished to make sure there are no burrs. A groove won't really hurt anything, it will just hold oil.
 

BogusSVO

Well-known member
Joined
Aug 29, 2013
Messages
232
Location
Pensacola, Florida
Thats bad, the cam journal that that came from must be close to junk.

The cam can be repaired. Call delta cams, ask for John, tell him I told you to call.

He will grind it undersized, then weld it, then grind it back to spec.

Cost with shipping should be in the $50-$75

He has fixed several cams for me and is a easy guy to deal with.
 

prove_it

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Joined
Jul 3, 2008
Messages
4,201
Location
Sioux Falls, SD
As always, Bogus to the rescue.
 

curtis

Well-known member
Joined
May 4, 2003
Messages
11,892
Location
Clarksville TN
Ok is the groove constant or not? reason I ask cam may be bent. Also I'm guessing you bought this this way if not check your head. It needs work. Just two things I thought of
 

Spyder

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Joined
Nov 3, 2004
Messages
1,136
Location
Des Moines, Iowa
I concur.

It looks like one side of the cam has a valley worn into it and the opposite side does not. I would think that would indicate a warped cam or warped head.

More inspection before you regrind that cam and install it.
 

14of2000

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Joined
Aug 12, 2012
Messages
143
Location
Sioux Falls, South Dakota
Its grooved all the way around, Sorry I didnt see that anyone responded to this. lol But thats the only part of the cam that is messed up. So would that still be something wrong with the cam?
 

Spyder

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Joined
Nov 3, 2004
Messages
1,136
Location
Des Moines, Iowa
How does the head look? If it is only that area on the cam maybe there is something not allowing enough oil to that journal?

Good luck.

Either way, you need to figure out what caused it before you fix the cam and put it back in.
 

AllanL

Well-known member
Joined
Aug 4, 2008
Messages
294
Location
NV
Quoting BogusSVO:
Thats bad, the cam journal that that came from must be close to junk.

The cam can be repaired. Call delta cams, ask for John, tell him I told you to call.

He will grind it undersized, then weld it, then grind it back to spec.

Cost with shipping should be in the $50-$75

He has fixed several cams for me and is a easy guy to deal with.



is this the cost for just one journal? or for all the damaged journals?
 

BogusSVO

Well-known member
Joined
Aug 29, 2013
Messages
232
Location
Pensacola, Florida
I only needed one journal on one cam fixed the last time. It was a Kelford in a RB26 build.

It ran me about $75 total, shing there, the repair and the return shipping.

Best thing to do is call Delta, ask for Jon, and tell him what is going on.

click

He will be able to give you a better idea of the cost.
 

14of2000

Well-known member
Joined
Aug 12, 2012
Messages
143
Location
Sioux Falls, South Dakota
Quoting Spyder:
How does the head look? If it is only that area on the cam maybe there is something not allowing enough oil to that journal?

Good luck.

Either way, you need to figure out what caused it before you fix the cam and put it back in.



I actually got these from someone else. I never had them in my head at all, I would be freaked out if pulled this from my head lol

But awesome, thanks for the info guys, im gonna call delta tomorrow and get this sent out asap. Ill make sure I take pics, and post them after its repaired.
 

AllanL

Well-known member
Joined
Aug 4, 2008
Messages
294
Location
NV
Quoting BogusSVO:
I only needed one journal on one cam fixed the last time. It was a Kelford in a RB26 build.

It ran me about $75 total, shing there, the repair and the return shipping.

Best thing to do is call Delta, ask for Jon, and tell him what is going on.

click

He will be able to give you a better idea of the cost.



thanks!

back to the original post...

can't plastigauge simulate what'll happen when the cam is installed to the cam caps?
 

prove_it

Well-known member
Joined
Jul 3, 2008
Messages
4,201
Location
Sioux Falls, SD
You can plastiguage all the journals and know if you have excessive or insufficient clearance. Perhaps Bogus can enlighten us as to the necessity of this. Mike's cam probably came out of a blown engine. I'm sure it's appearance is from oil contamination. I think it's the first journal to receive oil from the block, not positive.

Honestly, IMHO, I don't think this is a huge necessity when assembling a head, I've done it hundreds of times and never had a cam failure, as I'm sure plenty of builders have too.
 
Last edited:

BogusSVO

Well-known member
Joined
Aug 29, 2013
Messages
232
Location
Pensacola, Florida
I have only checked a few cams for clearance, mainly after a line hone.

I have laid cams in the journals and checked for rock, or warp of the cam towers, Installed cams in bare heads and made sure the cams spin by finger.

But I can not recall ever checking a cam with plastagauge.

It dose look like grit in the oil, but if it was dirty, or lack of oil I would expect more journal damage across both cams.

Now if the oil feed to that one journal clogged up that can cause the damage. But so would a swapped cap from another head.
 
Last edited:

coyotes

Well-known member
Joined
Nov 15, 2013
Messages
1,544
Location
Seattle, WA
how much does a line hone cost? my spare engine came with a cylinder head with cam caps off another cylinder head. I have not had the head tested for bind with cams yet though, but I am assuming it will need to be line honed. I may just go with a different cylinder head..
 
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