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Re: Lost another cam
[Re: StealthWedge67]
#1465765
07/14/13 06:21 PM
07/14/13 06:21 PM
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Joined: Feb 2003
Posts: 1,730 Red Deer, Alberta
bill_greenwood
OP
top fuel
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OP
top fuel
Joined: Feb 2003
Posts: 1,730
Red Deer, Alberta
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I think the cam loss this time around is strictly due to the new lifters failing to mate properly to the cam. The first cam loss was probably my fault, and I've used this current cam since then. It even went back in after blowing it up once and has given no issues. I decided to go with new lifters (Ferrea tool steel with the EDM oil hole) as the original MP lifters (I mistakenly claimed them to be from Comp Cams) had failed. Last year I had the pushrods blow through the disc on three. Replaced those with used ones I scrounged from a friend with no issues. I had also experienced some pushrods grief with my old .080 wall 5/16 chromoly units, so I replaced both, hoping to gain a measure of reliability. I will take look at valve springs, but at this point I'm not convinced I need a big jump in spring pressure to run a mild roller that has a very similar profile to my current flat tappet. Ditto for the bronze distributor gear, but I'll give it a good deal of thought. FWIW I'm giving serious thought to Comp's .550 lift "street roller" that has a profile no terribly unlike te MP 528 solid I currently run. I have good valve-piston clearance now, and would maintain most of it with this cam. They also have a .575 roller that has a nice profile, but would require going back to 1.5 rockers in order to maintain a suitable vtp clearance. Has anyone here run either of those cams?
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Re: Lost another cam
[Re: mopar dave]
#1465768
07/15/13 09:01 AM
07/15/13 09:01 AM
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Joined: Mar 2007
Posts: 9,336 South-Central (Sebring), FL
Commando1
master
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master
Joined: Mar 2007
Posts: 9,336
South-Central (Sebring), FL
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Quote:
Mike, I believe the comp 828 is one that leaked like a sieve. the other was a crane pro $880 set. the PBM's are non pushrod oiling.
From personal experience and from reading an awful lot over the years, the problem starts with using Comp anything. I may be totally wrong but I'm never using Comp anything again.
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