[DeTomaso] LESSONS LEARNED ON THE SIDE OF THE ROAD - WAS SSCC

Mon May 22 22:09:21 EDT 2006

Thanks JT...will let everyone know after engine is apart
  md

John Taphorn <jtaphorn at kingwoodcable.com> wrote:
  Mad Dawg - You get an "A" for effort and leadership.

I wouldn't be too hard on yourself about carb jetting, it strikes me that it 
would have had to be extremely rich, black smoke rich, to wash the oil from 
the cylinder wall. I would think that in the extreme, fuel would be found 
in the oil and you would have recognized it in an oil change.

Regardless, it sounds like worn or a spun main bearing(s). While diluted 
oil may have been the culprit, I'd wager my money on
1) detonation, that caused premature rod & main bearing wear
2) a cracked crank that is flexing enough to spin a main bearing,
3) a moment of poor oil pressure due to previous overheating that weakened 
the oil's viscosity allowing crank to bearing contact or
4) a moment when the pickup sucked air vs. the slick stuff that left the 
crank / bearing relationship momentarily unprotected.

I would expect an issue with blow-by would have revealed itself with the 
engine down on power and smoking out the tail pipes; yet I don't see the 
connection to low oil pressure.

Anyway, that is my diagnosis from a distance with the limited knowledge on 
hand prior to the autopsy. Other opinions?

J, who has fought the low oil pressure demons, T

----- Original Message ----- 
From: "Mad Dog Antenucci" 
To: "Mark McWhinney" 
Cc: 
Sent: Monday, May 22, 2006 7:09 PM
Subject: [DeTomaso] LESSONS LEARNED ON THE SIDE OF THE ROAD - WAS SSCC

> We pretty much knew as JB wrote earlier that the motor would not run at 
> WOT for 90 miles....2-3 weeks ago during a dyno pull it was confirmed I 
> had some oil blow by.
>
> Subsequent follow-up checkt and a leak down test aconfirmed it was rings 
> but also that the Holly 850cfm was jetted too fat. Timing was checked and 
> it was fine. Carb was pulled and primary and secondary jets and power 
> valves changed but running that carb in the last 1-2 ORR's last season 
> probably caused premature ring/cyl wear....my bad.
>
> I ran 19.8 miles....at about 15 oil pressure started dropping...at 20 PSI 
> I shut it down and coasted to a stop. Dick Drenske is going to pull the 
> motor in another week in his shop and get it over to Russ Fulps for the 
> rebuild.
>
> Only question unanswered at this point s whether or not the block is 
> repairable...if its not I may go to a Windsor/Sportsman block....one thing 
> is for sure. I got 2 years, 12 ORR's and allot of street miles out of this 
> last build so no complaints about the last engine build 2 years ago. Other 
> then wanting to add a EFI system I probably will not change anything.
>
> md
>
> Mark McWhinney wrote:
> So, tell us what died?
>
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] 
> On
> Behalf Of Mad Dog Antenucci
> Sent: Monday, May 22, 2006 3:19 PM
> To: RCBSONS1 at aol.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] Re: DeTomaso Digest, Vol 22, Issue 22 SSCC
>
> Hey Rookie-no-more,
>
> I'll take a bite of that humble pie ;-]
>
> MD, conversed with horses, cows, Coyote's and Lizards at Mile 19.8 for 7
> hours Sunday!
>
> RCBSONS1 at aol.com wrote:
> I just came into the office after the long haul back from Ely yesterday
>
> Six panteras started.. Five finished
> No offical results as I am not sure who went to the Awards show last night
>
> Larry Stock 150 average finished and thinks he nailed it
> Bob Benson 140 average finished- gps was right on 140 but thinks 30 
> seconds
> off
> Chuck Brown(Driving John Bently's car) ran 130 finished and thinks he did
> well and loves
> the alternate "B" engine... the "A" engine is still
> on the stand
> Eliot Kushner and Lynn Rosa 125 average finished and think they did well
> Jason Eaton and Nick Morland 120 average finished within 1 1/2 seconds!!!
>
> Dan Courtney had rear tires 2 months too old to run above 110 class and
> decided not to run
>
> That leaves One lone Pantera that I saw about 20 miles
> out on course on the side of the road. I won't say the name but I think it
> was blue or brokeback
> mountain purple... He was on the phone or radio looking stylish, leaning 
> on
> the car with
> his goofy hat and those funky blue sun glasses
>
> He might know the results or might be still out there with the coyotes,
> morman crickets
> and mosquitos.
>
> Great weekend... good runs TEAM PANTERA
> Bob Benson
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