Cam failure
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supervel45
70 Cobra
6 posters
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Cam failure
Building a 429 CJ that had a cam failure, ordered a cam lifters and valve springs from Bullet racing, Driven assembly and break in oil recommend, any other suggestions to avoid a repeat.
Thanks
Thanks
70 Cobra- Posts : 4
Join date : 2022-11-08
Re: Cam failure
https://www.429-460.com/t28825-429-cam-failure
^Odd. Both lobes on #1 as well as bearing wear at that area. I would double check everything very carefully, including the valve guides and lifter bores on the failed lobes. Sounds like something else going on besides low Zink oil.
^Odd. Both lobes on #1 as well as bearing wear at that area. I would double check everything very carefully, including the valve guides and lifter bores on the failed lobes. Sounds like something else going on besides low Zink oil.
supervel45- Posts : 4502
Join date : 2013-09-04
Mark Miller likes this post
Re: Cam failure
Cam break in service. They offer sell quality lifters as well.
http://www.camresearchcorp.com/camking/
http://www.camresearchcorp.com/camking/
Dave De- Posts : 797
Join date : 2011-05-27
Location : Highland, MI
Mark Miller likes this post
429 CJ Cam failure
thanks for all your comments and Cam Research info, going to use there service, good insurance
70 Cobra- Posts : 4
Join date : 2022-11-08
Re: Cam failure
Make sure the lifter bores are not damaged or too loose/tight
dfree383- BBF CONTRIBUTOR
- Posts : 14852
Join date : 2009-07-09
Location : Home Wif Da Wife.....
Mark Miller likes this post
Re: Cam failure
I have purchased 2 cam/lifter kits from Cam Research including his break in service on both and a buddy sent an Isky cam/lifters to him to be broken in. All 3 were solids and the initial starts were with the heavy valve springs installed. No problems. My current cam is in a street engine that,unfortunately,spends most of it's time under 2000 rpm city cruising with lots of idling in traffic. Three summers,over 10,000 miles and all's good. After the first couple break-in lashings I set them in the spring and they're good for the season. This spring they almost could have gone without adjustment so I'm pretty happy. He recommends Valvoline VR-1 20W-50 only and that's all I've run. The oil/filter/magnetic drain plug are still free of any sparkly bits.
the tree man- Posts : 124
Join date : 2019-10-07
Age : 64
Location : Winnipeg,Canada
Mark Miller and The Pope like this post
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