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Motor went finally!

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Old 07-23-13, 07:56 PM
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Motor went finally!

So after 5 years of good news I finally have some bad. Front iron cracked last week. First pass I did my famous 2nd to 1st gear shift still went 6.4 at 110mph. Log showed it was like slamming the brakes on . Second pass the clutch started slipping in 2nd thru the rest of the run, had a little break up noise going theu the traps. I think the damage was done the prior run. Oiled the track bad. Luckly not the tires too much. Got the car home and didnt know were the leak was so added some oil and it fired right up only to spit oil out the crack.

Tore it down and here are the results:
Attached Thumbnails Motor went finally!-crack.jpg   Motor went finally!-crack1.jpg   Motor went finally!-crack2.jpg   Motor went finally!-crack6.jpg   Motor went finally!-crack4.jpg  

Old 07-23-13, 08:10 PM
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So it shows the rotors were making contact. Front bearing doesnt look good either. Housings have marks but feel pretty smooth but have better ones I can use on the rebuild. Have to check the e shaft to see if its bent but would guess it is. Before I even tore it down Ray called it.. Said contact was made on the rotors/housings. So I need to figure out what I want to change on the next build. Since its a weekend drag car I dont believe in putting a crap ton in the build, new housings, etc... Not being cheap but too many things can kill a motor.

How offers rotor work? Want them taken down on the faces and sides.
Old 07-23-13, 08:45 PM
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Roberto's machine shop in Philly, one stop shop for rotary machine work... Did you pinch any side seals with the contact? We had so much contact last year that it pinched the seal in the groove

Next best prob e&j, he does his on a cnc but regardless balanc the rotating assembly one its All clearanced
Old 07-23-13, 10:54 PM
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Originally Posted by Bacon
Roberto's machine shop in Philly, one stop shop for rotary machine work... Did you pinch any side seals with the contact? We had so much contact last year that it pinched the seal in the groove

Next best prob e&j, he does his on a cnc but regardless balanc the rotating assembly one its All clearanced
Thanks, will call Edgar in the morning. All seals were fine. The corners were flat. Not stuck just springs were flat. Everything else looked fine for being used parts and taking a beating for 5 years. If my next motor goes half that I will be thrilled.
Old 07-24-13, 07:54 AM
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Sorry to hear it finally broke man, hopefully you'll have it back together fast and make it a comeback. You need to buy Allen's engine if he still has it for sale.
Old 07-24-13, 10:24 AM
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He sold it.
Old 07-24-13, 06:22 PM
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sad to hear.

The misfire you heard going through the traps, did it sound like a machine gun?
Old 07-24-13, 07:04 PM
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Damn man, just got it tuned too!

Was it just that extra 100hp on the last tune that pushed it over the top?
Old 07-24-13, 07:58 PM
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Originally Posted by sleeper7
sad to hear.

The misfire you heard going through the traps, did it sound like a machine gun?
I k.ow what what u are thinking but it was already cracked. Oil found its way to my clutch assembly by 2nd gear
Old 07-25-13, 01:08 AM
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Sorry to hear Mike... but I'm sure you'll have it back better than before in no time..
I like Rager Manderville for balance work.
Old 07-25-13, 03:40 AM
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Originally Posted by speed_nyc
i like roger mandeville for balance work.

+1
Old 07-25-13, 07:53 AM
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Roger Manderville is good and a super nice guy, that's who did my balancing.
Old 07-25-13, 10:08 AM
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Got his contact info?
Old 07-25-13, 11:17 AM
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Mandeville Auto Tech

545 Buffington Rd
Spartanburg, SC 29303

(864) 582-0038
Old 07-26-13, 08:27 AM
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Might look at a different material for that fitting on the front. I cracked mine in the same place. I think the fitting expanded.
Old 07-26-13, 08:50 AM
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I guess if you're going to blow it up, better blow it up good.

Hope to see it up and running again soon!
Old 07-30-13, 01:51 AM
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Hey Mike. Just out of curiosity, what kind of RPM did you see on the 2-1 shift? Do you feel like it was contacting before or all that damage was done on the upshift?
Old 07-30-13, 09:17 AM
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Originally Posted by 13B-RX3
Hey Mike. Just out of curiosity, what kind of RPM did you see on the 2-1 shift? Do you feel like it was contacting before or all that damage was done on the upshift?
Low 10's. my thoughts are it has touched numerous times. I really feel strong it did not detonate.
Old 07-30-13, 09:58 AM
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never mind.
Old 07-30-13, 04:57 PM
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Don't hold back chuck.
Old 07-30-13, 04:59 PM
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But I will be running direct fire on the next motor.
Old 07-30-13, 05:11 PM
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good idear Chuck! Direct Fire is the only way to go.
Replace that fitting with something else too!
Old 07-31-13, 01:50 AM
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There shouldn't be oil in that part of the motor anyhow
Old 07-31-13, 03:28 AM
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Originally Posted by sk8world
But I will be running direct fire on the next motor.
What ya changing to?
Old 07-31-13, 07:36 AM
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Originally Posted by 13B-RX3
There shouldn't be oil in that part of the motor anyhow
Yeah... I'm thinking about going to a water cooled center on my next turbo.


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