This cam lobe has a bit of wear on it, Ive never had a cam repaired before but understand it is possible. Those in the know can you have a look at the pic and tell me what you reckon?
The best way to repair cams is machine the base circle down and regrind the lobe, then reharden. There are some people that will build the lobe up then regrind. But I have seen the weld fall off and make a hell of a mess!
plasticboys,
Mar 23, 8:41am
going of the picture you can just regrind that been child cast iron , if it had to be built up its best to grind the lobe down in size and weld around the hole lob , not just the worn area
OP, you could get the cam lobe flame sprayed, that is they heat the metal up and spray the area, with compounds that will built it up and harden it. Welding then grinding it back to for repair , can induce cracking. But it is all a matter of costs, vis best style of repair. So long as the heating for flame spray is carried out correctly , I would go with this style of repair. Have had it done on a crank shaft, and it worked very well.
snoopy221,
Mar 23, 9:44am
That wear is consistent with a roller rocker that has shagged in the pin ,
clark20,
Mar 23, 10:14am
yep, show a pro, and check the followers as well.
morrisman1,
Mar 23, 10:32am
the follower is stuffed too. thats no prob to replace, just those cams are good ones so wanna try recover them.
biddy6,
Apr 16, 4:06pm
Kelford cams built up and reground the two cams which had worn lobes from my Lancia, worked just fine.
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