Check out the story/pics on this 460 at the Ford Truck forum. Something nasty happened inside there!!
Cam wiped out - MaxLife 10-40 blamed
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Originally Posted By: addyguy
I have a hard time beleiving it was JUST the oil that caused that damage. ML has a LOT of moly in it, that 'should' mostly make up for the lower zinc amounts. Perhaps improper assembly/break-in?
Particularly in just 7,000 miles!?!?
John
I have a hard time beleiving it was JUST the oil that caused that damage. ML has a LOT of moly in it, that 'should' mostly make up for the lower zinc amounts. Perhaps improper assembly/break-in?
Particularly in just 7,000 miles!?!?
John
Simple! Improper cam breakin procedure observed, including but not limiting to perhaps wrong break-in lube used.
This happens more often than you think esp. in with those aftermarket retrofitting/stroked modifications with high lift cams, etc.
Bottomline: before the poster starts accusing motor oil for fault, think deeper...
Q.
Geesh! So much for the "blame" culture in the society.Don't you think it's about time to take accountability?
This happens more often than you think esp. in with those aftermarket retrofitting/stroked modifications with high lift cams, etc.
Bottomline: before the poster starts accusing motor oil for fault, think deeper...
Q.
Geesh! So much for the "blame" culture in the society.Don't you think it's about time to take accountability?
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I bet the guy didn't wait for proper brek in before he decided to see how well his engine performed.
that Jim really seems to know his stuff. the OP is not the sharpest knife in the drawer, though. I like his phrase, "per batum". classic.
I didn't think cam mfgrs would still be recommending against syn. about 20 yrs ago I put a crower cam in my SBC and the instructions specifically said do not use syn. I thought things would have changed somewhat.
I didn't think cam mfgrs would still be recommending against syn. about 20 yrs ago I put a crower cam in my SBC and the instructions specifically said do not use syn. I thought things would have changed somewhat.
I would have done a cylinder head change before a camshaft change.
Power is found in the heads, John Lingenfelter once said, the worlds best heads with a stock cam will make power, the best cam with stock heads will be a dog.
I have seen guys on the Marauder board putting in a hotter cam and they did not notice much, your stock heads are meant to run with the stock camshaft.
I do agree with what people were saying about the cam not being installed right.
Power is found in the heads, John Lingenfelter once said, the worlds best heads with a stock cam will make power, the best cam with stock heads will be a dog.
I have seen guys on the Marauder board putting in a hotter cam and they did not notice much, your stock heads are meant to run with the stock camshaft.
I do agree with what people were saying about the cam not being installed right.
I would like to see "in writing" that Comp Cams makes all of their cams in-house. I'm beating a good horse to death here, but far too many companies buy a Chinese blank then grind the lobes on them to their own specs.
Some of lesser known companies will sell you a $79 dollar camshaft. Care to guess where this cam was originally poured?
Some of lesser known companies will sell you a $79 dollar camshaft. Care to guess where this cam was originally poured?
I looked at the photos, it seems that he has stock heads, and this may have been a high lift cam.
Flat tappet is old school, since many cam companies have a retro fit roller cam kit.
Maybe he should have used an oil with high ZDDP or Zinc in it for the 1st 3000 miles.
Flat tappet is old school, since many cam companies have a retro fit roller cam kit.
Maybe he should have used an oil with high ZDDP or Zinc in it for the 1st 3000 miles.
Originally Posted By: addyguy
I have a hard time beleiving it was JUST the oil that caused that damage. ML has a LOT of moly in it, that 'should' mostly make up for the lower zinc amounts. Perhaps improper assembly/break-in?
Or a flaw in the cam itself or the lifter foot surface. Note that the other lobes look just fine! If it were oil-related, I'd expect to see all of them trashed.
I have a hard time beleiving it was JUST the oil that caused that damage. ML has a LOT of moly in it, that 'should' mostly make up for the lower zinc amounts. Perhaps improper assembly/break-in?
Or a flaw in the cam itself or the lifter foot surface. Note that the other lobes look just fine! If it were oil-related, I'd expect to see all of them trashed.
Sorry to read this guy wiped out a cam, glad it was a 40 grade oil, and not a 20 grade. All kidding aside the job was probably done incorrectly, and proper break-in procedure not followed. Could have been a defective cam too. JMO
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I vote for the cam lobes being improperly surface hardened during manufacturing. But a junk casting can probably never be properly hardened, so faulty material has a high probability too.
Ford designed engines aren't exactly the beacon of reliability now are they... and don't people proclaim that pushrod is more reliable or desirable in any way over OHC?
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Originally Posted By: Max_Wander
Ford designed engines aren't exactly the beacon of reliability now are they...
What?
Ford's modular engines are one of THE most reliable engines in the world, the Windsor was also an EXTREMELY reliable engine, as was the 300 I6, and the 385-series engines, such as the 460 being discussed.
Ford designed engines aren't exactly the beacon of reliability now are they...
What?
Ford's modular engines are one of THE most reliable engines in the world, the Windsor was also an EXTREMELY reliable engine, as was the 300 I6, and the 385-series engines, such as the 460 being discussed.
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