DP #24 Engine failure....

[Chris "drooze" Wertman]

Originally Posted by mtkawboy

That looks like heat prior to bearing spinning, prior to the rod breaking, prior to a hole in the block with a rod sticking thru it. Remove intake & valve covers, toss rest in dumpster {428}. That was an oiling problem in them. Dont know anything about these new motors except they haul as#

I know thats what the LOOK like, Im glad someone else came to that conclusion and Im not just a COMPLETE moron.

Those bearings are BRAND NEW Out of the Plastic !

Its something in the way they are treated. They are ACL Racing Bearings Made in Australia

These are AFTER they were cleaned with tet and scrubbed dry.

The bearings and all their sisters brand spankin in the plastic look the same , except in all there is variation on the coating/heat treating, the backs are BROWN like BURNT heat Brown......

But they are BRAND New....

[art leong]

That is the coating just wash in soap and water and install. Do not try to polish them.

[Chris "drooze" Wertman]

Originally Posted by art leong

That is the coating just wash in soap and water and install. Do not try to polish them.

Thanks Art....yeah no polishing for me, I just wanted to post a pic....

I have not seen that deep a blue around edges before the rod bearings are worse, and not the "brown" ive seen some "odd" coatings, but none that exactly follow the pattern (on one side of the shells) that looks like there was rotational friction and heat.

There in at .0036 across the BOARD ! On the spot double checked....I grabbed some XS for the extra clearance, those are matched set.....and well the crank I got was all B sized Journals....the other one that was in it was like BBCAC....althought the other one in my shop isnt much bett

Cheers

Chris

[Rich Biebel]

Clevitte H's with the ugly looking chemical wash........They didn't alwasy have that blue/ brown look........they were more of a grey/ blue color.

I've tried them all........used those mostly because they are easy to get and reasonably priced and hold up fine....for the most part.

I tried something different in my LT-1 Stocker.....I think they were Federal race bearings......270 degree groove on the mains......that engine went well over 100 runs with no problems and saw over 7000 every run....Car was sold.....

Best bearings I've used on a customers 454 engine.....C&A's.........went hundreds and hundreds of runs with no problems.....and this racer had some failures here and there that was pretty costly. A very heavy car that wheelied all the time.....and could run high 9's.....

[Chris "drooze" Wertman]

Too bad C&A is no more Unless Im wrong ?

These are ACL ? Supposedly good stuff and one of the few XS for mains and incremental trimetal race.....

Ive seen ugly, Ive just never see "preburnt" lol.....when you take a low run engine apart with these and havent seen em PRIOR , well they look like things are going badly.....the damm blue is irridecent in the light and like I said all edges mostly, they must heat them in their treatment thats all I can guess.

The grey blue on the Clevites Ive seen and that well I would have known but even the backs are "stained" like they were hot.....

Well now I know what they went in like....so Ill have a better idea when I see them on the pavement

Originally Posted by Rich Biebel

Clevitte H's with the ugly looking chemical wash........They didn't alwasy have that blue/ brown look........they were more of a grey/ blue color.

I've tried them all........used those mostly because they are easy to get and reasonably priced and hold up fine....for the most part.

I tried something different in my LT-1 Stocker.....I think they were Federal race bearings......270 degree groove on the mains......that engine went well over 100 runs with no problems and saw over 7000 every run....Car was sold.....

Best bearings I've used on a customers 454 engine.....C&A's.........went hundreds and hundreds of runs with no problems.....and this racer had some failures here and there that was pretty costly. A very heavy car that wheelied all the time.....and could run high 9's.....

[mtkawboy]

Thought you meant new out of the new motor, hard to tell from pics. Years back some guys Scotchbrited the coatings off

[Rich Biebel]

[QUOTE=drooze;
Well now I know what they went in like....so Ill have a better idea when I see them on the pavement [/QUOTE]

Think positive thoughts....and like I told you get rid of the junked parts ASAP.....They are full of bad Karma.........it spreads if you let it....

[Chris "drooze" Wertman]

Originally Posted by Rich Biebel

Think positive thoughts....and like I told you get rid of the junked parts ASAP.....They are full of bad Karma.........it spreads if you let it....

Really ? Lol....maybe thats been my problem I keep all my busts as "trophies" I was even going to hotglue pieces of motor 1 and motor 2 to my hatband (really)

Well maybe but Im not going to "jinx" my "Good Luck" charm by saying it out loud....but its never failed. (When I, me myself put a motor together)

[Jeff Lee]

If your machinest doesn't offer a good explanation, I would contact ACL and their engineering department and learn for yourself what is right or wrong with those parts.

[Chris "drooze" Wertman]

My Machinist ? Lol....now thats good....

But seriously right now Im sort of :"between" machinists, just like wives , they both kept pissing me off...soo....gone.

Ive got a couple "leads" in the area and well see, im having a crank done tommorow for something else, its pretty tricky the offset grind and journal work that needs done, well not tricky just a lot of it and its got to be perfect. Ive heard good things about him, well see.

The bearings I got from Stanton I ordered em because well he had em in stock and got em to me fast, he said they are 100% normal for their bearings, Ive now seen 4 other sets in other motors but they had all been run so it wasnt as glaring, as many have pointed out the coating does wear off.

And ive got 5 different sets, 3 from different batches and production dates across 5 months, all look the same......

I think theyre odd....but well...I look odd to and Im ok (I think ?) so well see...

Originally Posted by Jeff Lee

If your machinest doesn't offer a good explanation, I would contact ACL and their engineering department and learn for yourself what is right or wrong with those parts.