Fixing a cam?
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Fixing a cam?
I have a BBC solid roller with one damaged lobe. Not real bad but ground down some. How much does it cost to repair this? Or is it better to buy a new one?
Re: Fixing a cam?
JMO: If your BBC solid roller cam is an off-the-shelf piece, it could be cheaper to buy a new one.
Suggest you ask one of the many re-grinders for advice: CamCraftCams, Crower, Egge, OregonCamshaft etc
Suggest you ask one of the many re-grinders for advice: CamCraftCams, Crower, Egge, OregonCamshaft etc
Re: Fixing a cam?
I had a flat tappet solid cam welded and reground and still have it running it was welded by webcam in Riverside Ca and sent back to bullet to be ground it was 75.00 for the welding and 75.00 for the grind.
Re: Fixing a cam?
Mike Jones can fix it...
Honored to be a member of the Luxemburg Speedway Hall of Fame Class of 2019
Re: Fixing a cam?
It would depend on how bad it's damaged.
The other issue would be, having a lobe profile close to what's on it.
It's always best, to contact the company that made the cam, since they'll have the exact profiles to grind back on it.
Mike Jones
Jones Cam Designs
Denver, NC
jonescams@bellsouth.net
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Jones Cam Designs
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Re: Fixing a cam?
Yeah, im sure thats more cost effective than going to the person with the original master.jeff swisher wrote: ↑Tue Feb 11, 2020 8:13 pm Or the guy grinding it could cut a master off of a lobe that was good.
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Re: Fixing a cam?
Yeah, im sure thats more cost effective than going to the person with the original master.
[/quote]
People brings cams into the local cam shop all the time with bad lobes and some of those cams have been around longer than the company that built the cam.
If you have spare masters and the cam is a pretty nice profile that you do not have you cut a master and now you do have it.
But you are right if the cam can be sent back to the guy with the master it should be more cost effective.
[/quote]
People brings cams into the local cam shop all the time with bad lobes and some of those cams have been around longer than the company that built the cam.
If you have spare masters and the cam is a pretty nice profile that you do not have you cut a master and now you do have it.
But you are right if the cam can be sent back to the guy with the master it should be more cost effective.
Re: Fixing a cam?
You never want to do this, unless there are no other options available.jeff swisher wrote: ↑Tue Feb 11, 2020 8:13 pm Or the guy grinding it could cut a master off of a lobe that was good.
When you grind a lobe off of a master, that lobe is a copy of the master lobe, but tolerances and wheel size variations make it less then a 100% accurate copy.
Now if a cam company makes a master off of one of the cam lobes, that master is now a copy of a copy, and the accuracy drops even more. If the lobe he measured to make the new master was worn at all, that also drops the accuracy.
Now he takes that master, and grinds the bad lobe, so now that lobe is a copy of a copy of a copy, with so many copying errors that it could cause major issues to the rest of the valvetrain.
Mike Jones
Jones Cam Designs
Denver, NC
jonescams@bellsouth.net
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(704)489-2449
Jones Cam Designs
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Re: Fixing a cam?
Take a couple pictures of the bad lobe, and email them to me: tech@jonescams.com
Mike Jones
Jones Cam Designs
Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449
Jones Cam Designs
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jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449
Re: Fixing a cam?
A new cam is the cheapest up grade you can do for high performance engine. With the new profiles that available you may pick up some HP with the new cam while your at it.