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Modified oil pump failure #2282446
04/04/17 08:57 PM
04/04/17 08:57 PM
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bean town ....Ca
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WHITEDART Offline OP
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This weekend did not end up so good.. although I guess we could say it could have been worse.. the Car slow down almost for tenths on its last pass.. after picking up my losing time slip.. re fired the motor and noticed it didn't have any oil pressure.. and the starter really struggled to start it... I got it home.. remove the oil pump and found the oil pump Lane in the oil pan

20170404_154334.jpg

In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Modified oil pump failure [Re: WHITEDART] #2282452
04/04/17 09:08 PM
04/04/17 09:08 PM
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bean town ....Ca
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WHITEDART Offline OP
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One more

20170404_154342-1-1.jpg

In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Modified oil pump failure [Re: WHITEDART] #2282456
04/04/17 09:12 PM
04/04/17 09:12 PM
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bean town ....Ca
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WHITEDART Offline OP
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The two main caps that I have removed look perfect bearings are beautiful... five of the rods bearings are in great shape.. three of the rod bearings were to The Copper. And two of the rod caps show signs of heat...

20170404_154219.jpg

In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Modified oil pump failure [Re: WHITEDART] #2282463
04/04/17 09:18 PM
04/04/17 09:18 PM
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oregon
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greendart408 Offline
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Sorry about your misfortune, came out from it ok by the looks of it considering. Was the pump bottomed on that stud? Or just flat break in half for zero reason?

Re: Modified oil pump failure [Re: WHITEDART] #2282465
04/04/17 09:24 PM
04/04/17 09:24 PM
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Canada
onig Offline
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Canada
Do you know why it broke? Was the pick up tube under stress and caused the casting to break off?


69 Dart
Re: Modified oil pump failure [Re: WHITEDART] #2282475
04/04/17 09:44 PM
04/04/17 09:44 PM
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New Smyrna Beach FL
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scottb Online content
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Sounds like you caught it just in time except for a couple rods and cleaning up the crank what kind of rods are you using

Re: Modified oil pump failure [Re: scottb] #2282481
04/04/17 09:54 PM
04/04/17 09:54 PM
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bean town ....Ca
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WHITEDART Offline OP
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Oliver rods and a king crank..there was no interference between the main cap and the oil pump... however the pump passage was greatly increased in size...


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Modified oil pump failure [Re: WHITEDART] #2282514
04/04/17 10:38 PM
04/04/17 10:38 PM
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Dillsburg, PA
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mrsmallblock Offline
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That is a shame but could have been worse. What are the specs on the Oliver rods?

Howard

Re: Modified oil pump failure [Re: mrsmallblock] #2282520
04/04/17 10:48 PM
04/04/17 10:48 PM
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PA.
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Sorry to see this but I'm glad you caught before things turned ugly


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Modified oil pump failure [Re: WHITEDART] #2282532
04/04/17 10:56 PM
04/04/17 10:56 PM
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Romeo MI
MR_P_BODY Offline
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Whats your peak oil pressure
wave

Re: Modified oil pump failure [Re: WHITEDART] #2282537
04/04/17 11:03 PM
04/04/17 11:03 PM
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Bitopia
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jcc Offline
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Not sure if this is the exact same problem, regardless worth checking whenever in the area, look at Pic #19

https://board.moparts.org/ubbthreads/ubbt...tml#Post1554264

IMO on further review, the enlarged oil passage likely was the initiator of this failure, by weakening the lower oil pump support structure.

edit #2 and the oil pan crushing wheel stand. grin

Last edited by jcc; 04/04/17 11:34 PM.

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Modified oil pump failure [Re: mrsmallblock] #2282546
04/04/17 11:13 PM
04/04/17 11:13 PM
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bean town ....Ca
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WHITEDART Offline OP
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Originally Posted By mrsmallblock
That is a shame but could have been worse. What are the specs on the Oliver rods?

Howard
6.250 long. 9.27 2.100


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Modified oil pump failure [Re: MR_P_BODY] #2282550
04/04/17 11:17 PM
04/04/17 11:17 PM
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bean town ....Ca
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WHITEDART Offline OP
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Originally Posted By MR_P_BODY
Whats your peak oil pressure
wave
80lb at 8800


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Modified oil pump failure [Re: WHITEDART] #2282552
04/04/17 11:18 PM
04/04/17 11:18 PM
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Dillsburg, PA
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mrsmallblock Offline
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Okay. Thought i might be able to help you. I have 6 6.125x2.00x.927.

Howard

Re: Modified oil pump failure [Re: WHITEDART] #2282557
04/04/17 11:23 PM
04/04/17 11:23 PM
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Canton, Ohio
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Sport440 Offline
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Sorry it happened , but boy were you lucky. You were darn near tossing a rod out the side of the block

Re: Modified oil pump failure [Re: WHITEDART] #2282561
04/04/17 11:29 PM
04/04/17 11:29 PM
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bean town ....Ca
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WHITEDART Offline OP
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When the motor first went into the car 200 passes ago it did a wheel stand and came down and crushed the oil pan. and hit the pick up.. pretty good.. after a very close inspection I chose to reuse the pump.. and actually shorten the pick up slightly.. so it wouldn't hit the pump.. if it happened again...that was 200 passes ago


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Modified oil pump failure [Re: WHITEDART] #2282563
04/04/17 11:30 PM
04/04/17 11:30 PM
Joined: Sep 2003
Posts: 2,175
Duloc
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The Shadow Offline
top fuel
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Duloc
Sure looks like the stud was hitting the pump but maybe Im seeing it wrong

Re: Modified oil pump failure [Re: WHITEDART] #2282568
04/04/17 11:39 PM
04/04/17 11:39 PM
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Romeo MI
MR_P_BODY Offline
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2 things.. whats the weight oil and what is the
minimum rpm you see 80#
wave

Re: Modified oil pump failure [Re: WHITEDART] #2282584
04/05/17 12:06 AM
04/05/17 12:06 AM
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Ambridge, Pa.
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rickraw Offline
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Shiloh, maybe when the pan got crushed it may have fractured the pump & it finally broke off.

Re: Modified oil pump failure [Re: WHITEDART] #2282587
04/05/17 12:17 AM
04/05/17 12:17 AM
Joined: Jun 2003
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Romeo MI
MR_P_BODY Offline
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Looking at it again.. you came down on the pan
and broke it
wave

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