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02-02-2017, 08:08 PM | #1 |
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cam/lifter uh-oh
While doing some other work on my recently completed 59A engine (I had heads off and valves out) after getting everything cleaned up and ready to back together I figured I would pull the lifters and relube everything for an easy startup with no chance of galling. #1 intake lifter is in the picture. So I looked at the cam lobe with a mirror, didn't like what I saw, and pulled the cam. Front cam bearing is in the picture along with a shot of the cam lobes. Everythig feels "smooth" but obviously something is making metal come off. I'll be pulling the engine to check rod/main bearings.
This was a new Schnieder cam, real (old) Johnson lifters that I had reradiused, all of Schnieders special lubricating "goo", and 55 to 60#s of spring pressure. Engine had maybe 1 hour of run time, none of it idling (becasue it hada vac leak and wouldn't idle). What can I do different once cleaned up with new parts to prevent a repeat? |
02-02-2017, 08:39 PM | #2 | |
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Location: Long Island, NY
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Re: cam/lifter uh-oh
Quote:
Also have my doubts about that Schneider cam, difficult to tell from photos. Would use ONLY some original Johnson tappets and nothing but "moly" lube to break in the cam. We use/sell hundreds of flat-tappet cams (not only Flatheads) during the course of any given year and highly recommend AGAINST using any other lube than the "moly" paste! We don't care what the cam grinders recommend! Thanks, Gary in N.Y. P.S. Also difficult to say about the cam brg appearance, may have happened during the cam removal. I would also add we use only "Teflon" coated cam brgs on almost all our builds today! Aside from the better wear factor the coating also helps some with tightening the cam journal clearance! Here's a shot of the Flathead cam brgs we use along with some ARP "moly" lube!
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02-02-2017, 09:03 PM | #3 |
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Join Date: May 2010
Location: Kerrville, Tx
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Re: cam/lifter uh-oh
Where do you get the original Johnsons. PLEASE!
I also need a 241 Dodge cam reground. Any sugestions? |
02-02-2017, 09:04 PM | #4 |
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Join Date: Sep 2010
Posts: 350
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Re: cam/lifter uh-oh
years ago we built engines with off the shelf parts.made in usa didnt do anything too special and they worked good and lasted as expected.now days with all the junk parts out there u gotts be so careful and u still might get burned. ford put those things together started em up and shipped em. i think u cant b too careful but people over think every thing and that creates its own set of problems.
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02-02-2017, 09:05 PM | #5 |
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Join Date: Sep 2010
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Re: cam/lifter uh-oh
efingham cams grinds all mine never a problem
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02-02-2017, 09:37 PM | #6 |
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Location: Gloucester VA
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Re: cam/lifter uh-oh
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Lonnie |
02-02-2017, 09:41 PM | #7 |
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Re: cam/lifter uh-oh
I've used re-surfaced lifters by JWL on several ocasions and never had a problem. I think if done right, the work just as good asnew. Biggest problem is the screwas.
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02-02-2017, 09:53 PM | #8 | |
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Re: cam/lifter uh-oh
Quote:
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02-02-2017, 10:09 PM | #9 |
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Re: cam/lifter uh-oh
Lonnie, I am confused on your statements. Its a new engine, fresh everything, plenty of oil circulating around. 55 to 60#s is the valve spring pressure. Lifters were reradiused by Mr Lawson, I doubt they were the problem; you can see where they were rotating on the lobes as advertised.
I will go back with a cam ground on a Ford core; perhaps it was soft iron in the cam blank. Doesn't matter at this point. I will back valve spring pressure down to 50 to 55#s but I doubt 5#s made that much of a difference. Very frustrating to say the least. |
02-02-2017, 10:15 PM | #10 |
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Re: cam/lifter uh-oh
Are you going to let Schneider look at the cam for their opinion?
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02-02-2017, 10:53 PM | #11 | |
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Location: Gloucester VA
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Re: cam/lifter uh-oh
Quote:
Ooops! My mistake. I thought you are talking about the engine that you recently cleaned sludge out of and (to me) had unusually high oil pressure afterward. Lonnie |
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02-03-2017, 12:27 AM | #12 |
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Location: Tehachapi, Ca.
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Re: cam/lifter uh-oh
Call Jerry Cantrell at Schneider. He is a stand up guy. I've used his cams in everything I've built since the '60's and never had a problem. He will help. 1-619-297-0227
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02-03-2017, 01:19 AM | #13 |
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Location: Sweden
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Re: cam/lifter uh-oh
How tight was it to install the camshaft ?
I straighten my camshafts before i have them regrinded. A cam should go in easy and has a correct clearance to bearings same as any piece of the rotating assembly. And i second the call Jerry, always a good idee to let the people that did your work get a chance to say what they think. |
02-03-2017, 07:47 PM | #14 |
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Re: cam/lifter uh-oh
Thanks for advice.
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02-03-2017, 08:00 PM | #15 |
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Location: Lafayette, La.
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Re: cam/lifter uh-oh
have you checked the rod bearings?
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02-03-2017, 08:31 PM | #16 |
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Location: Kerrville, Tx
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Re: cam/lifter uh-oh
You might look at #1 main and see if it is OK. Also the front rod bearings.
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