Well I got the motor apart after losing oil psi at the 1/8 mile. It wsa just as I expected a broken oil pump shaft. It will be replaced with a ARP shaft this time lol. The good thing is that the bearings look great.
Well I got the motor apart after losing oil psi at the 1/8 mile. It wsa just as I expected a broken oil pump shaft. It will be replaced with a ARP shaft this time lol. The good thing is that the bearings look great.
Holy crap, cant beleive it twisted that far.
There still has to be a root cause betond the shaft itself. Did you pull the pump appart?
Bob Myers
yea that pumped had to have locked up or something else cause that shaft didn't do that by itself
88 GT...and some boost
I pulled one out of my 88 coupe that was twisted like that but not broken. I replaced it with an ARP one and it was fine till I sold the car.
Lou
Best non ported stock pullied eaton pass
1.50 60ft 11.160@ 125.08
New combo,
Ported Eaton, upper/lower
508 Hp 548 TQ SAE on an inferior Dynojet Dyno
1.43 60 ft. 10.55 @ 130 MPH
WFC 8 Mod Motor Winner
06 NMRA Martin, Mi. Mod Muscle Winner
wow that's a shame...
atleast nothing else got destroyed.... good luck gettin' her up and running again!
2015 Corvette Z06
- Shark Grey / Kalahari
- bolt-ons, tune, lots of carbon fiber (642/671 rwhp/tq)
I think it twist a little bit each time I hammer it until it finally breaks. The pump is only about four months old which was about a 1000 miles and 80 passes down the 1/4 mile and I don't see anything wrong with it.
Lou you said the ARP was fine until you sold it. Do you mean it broke after you sold it or that you just dont have the car anymore?
Lou
Best non ported stock pullied eaton pass
1.50 60ft 11.160@ 125.08
New combo,
Ported Eaton, upper/lower
508 Hp 548 TQ SAE on an inferior Dynojet Dyno
1.43 60 ft. 10.55 @ 130 MPH
WFC 8 Mod Motor Winner
06 NMRA Martin, Mi. Mod Muscle Winner
Thats amazing!!! Looks kinda neat actually. Ford needs to come up with something else foe this. Chevy uses a 1/2 diameter rod. Why cant Ford do something like that?
Rob
1 Monte SS. White.
Banned dates
11/27/08
4/25/11
3/28/12
12/1/12
There are more but that's all that was logged!!!
Gotta ask 1 thing. Was your oil cold? Reason I ask is because I have 80psi idling on cool/cold oil. When it warms up I have about 58-60 psi and when I run it hard with warm oil it goes to about 85-90. That shaft worries me like crazy!!!
Rob
1 Monte SS. White.
Banned dates
11/27/08
4/25/11
3/28/12
12/1/12
There are more but that's all that was logged!!!
That right there is why I put an ARP shaft in my new engine. I've seen this a bunch of times with stock/stock replacement shafts.
-Paul
1995 GT 'vert
Best times on old 302 combo:
12.03 at 112.5mph NA
Best time with 9:1 compression NA dart block 331 setup:
11.50 at 121mph
Dyno'd: 415rwhp/410rwtq
2004 Z16 commemorative edition Z06
100% stock: 11.9 at 118mph
Yeah I run the motor cold and thats probably contributed to the problem. I broke the same part last year with the motor being cold also. Anyone running a stock one and making any power I would recommend replacing it with a good one.
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