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Oil Pressure Dropping To 0 Under 1500rpm-???

  • Thread starter Thread starter BKM48198
  • Start date Start date May 31, 2014
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BKM48198

15 Year Member
Jun 7, 2008
377
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49
Ypsilanti, Michigan
Jun 11, 2014
#61
  • Jun 11, 2014
  • #61
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 11, 2014
#62
  • Jun 11, 2014
  • #62
I'm not sure if I should try taking the pump apart and seeing if there is more crap inside it that might be causing problems or not, any thoughts on that?
 

stykthyn

I want to measure mine. It doesn't look that tall.
15 Year Member
Jul 6, 2006
5,232
2,652
223
gainesville
Jun 11, 2014
#63
  • Jun 11, 2014
  • #63
How much of that garbage was still in the pan? The red doesn't concern me much. Still curious to see what the main bearings look like.
 

stykthyn

I want to measure mine. It doesn't look that tall.
15 Year Member
Jul 6, 2006
5,232
2,652
223
gainesville
Jun 11, 2014
#64
  • Jun 11, 2014
  • #64
Is there a gasket between the pick up and the pump?
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#65
  • Jun 12, 2014
  • #65
stykthyn said:
Is there a gasket between the pick up and the pump?
Click to expand...
stykthyn said:
Is there a gasket between the pick up and the pump?
Click to expand...
You can see the gasket in this pic.
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#66
  • Jun 12, 2014
  • #66
stykthyn said:
How much of that garbage was still in the pan? The red doesn't concern me much. Still curious to see what the main bearings look like.
Click to expand...
I didn't see any but I will run the oil thru a strainer tonight and see what was in it.
 

RangerJoe

I leave the horn on while driving
15 Year Member
Apr 26, 2010
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Georgia
Jun 12, 2014
#67
  • Jun 12, 2014
  • #67
That's a lot of crap to be floating around in your oil pan. That makes me worry a littl about what else got sucked through.

Joe
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#68
  • Jun 12, 2014
  • #68
RangerJoe said:
That's a lot of crap to be floating around in your oil pan. That makes me worry a littl about what else got sucked through.

Joe
Click to expand...
There wasn't much else in the oil, there was some tiny specks that look like bronze/brass on the bottom of the pan. I used compressed air to blow out the pump and tube and didn't get much crap out of either, mostly looks like the stuff stuck to the screen, but I won't try re-using the oil filter.
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#69
  • Jun 12, 2014
  • #69
stykthyn said:
How much of that garbage was still in the pan? The red doesn't concern me much. Still curious to see what the main bearings look like.
Click to expand...
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#70
  • Jun 12, 2014
  • #70
I put it back together for now so I don't lose any parts, my other crank looks better than this one, those bearings had very little of the bronze-brass showing on the bearings so that crank might be the one that goes to the machine shop. Do the pistons have to come out to change the bearings or can they be left in? I do have the pistons I took out of my other motor which are forged pistons and the ones in this motor are not, I will NOT put nitrous on this car, any power advantage from one to the other?
 

stykthyn

I want to measure mine. It doesn't look that tall.
15 Year Member
Jul 6, 2006
5,232
2,652
223
gainesville
Jun 12, 2014
#71
  • Jun 12, 2014
  • #71
Those bearings are shot. They should be silver. That's where your pressure loss went. Too much gap to keep the oil in the galleys. That engine was pushed to failure. I am surprised you didn't find a spun bearing.
 

mikestang63

SN Certified Technician
Aug 27, 2012
11,606
8,859
214
In the garage
Jun 12, 2014
#72
  • Jun 12, 2014
  • #72
holy wiped bearings batman. Take one of the rod and main bearings- clean off the surface and put some plastigauge on the journal and torque it down. I'm curious to see what the readings are. You said the motor was just done? Who built that motor? I hope you didn't pay to have that assembled. I'd pull that crank out and have it cleaned up too and if needed get a matching set of bearings.
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#73
  • Jun 12, 2014
  • #73
stykthyn said:
Those bearings are shot. They should be silver. That's where your pressure loss went. Too much gap to keep the oil in the galleys. That engine was pushed to failure. I am surprised you didn't find a spun bearing.
Click to expand...
Ya, they look pretty bad, compared to the ones in the other motor they are really bad, the others had most of the silver coating still and these have just a small spot or two of it left, that is why I think I'll use that crank.
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#74
  • Jun 12, 2014
  • #74
mikestang63 said:
holy wiped bearings batman. Take one of the rod and main bearings- clean off the surface and put some plastigauge on the journal and torque it down. I'm curious to see what the readings are. You said the motor was just done? Who built that motor? I hope you didn't pay to have that assembled. I'd pull that crank out and have it cleaned up too and if needed get a matching set of bearings.
Click to expand...
Nothing was done to the bottom end, it came from a 96 Explorer that I was told only had 100,000 miles on it. I wanted the intake and gt40 heads and got the whole motor for $400 then had a machine shop clean and check the heads before they got new TFS springs. I was going for a VERY low budget motor after my old one started smoking last fall ( bad head gasket). I took the crank out of the old motor and it will probably be the one going to the machine shop, the bearings on it were much better and showed a lot less wear.
 

RangerJoe

I leave the horn on while driving
15 Year Member
Apr 26, 2010
2,560
1,146
184
Georgia
Jun 12, 2014
#75
  • Jun 12, 2014
  • #75
I hate that for you man. That's about what my bearings looked like before I did my rebuild. It ran like a top though.

Joe
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 12, 2014
#76
  • Jun 12, 2014
  • #76
Time to pull it all back apart again and start over, so much for a low budget build. Anyone want to buy an SKS with a case of 7.62 ammo?
 

RangerJoe

I leave the horn on while driving
15 Year Member
Apr 26, 2010
2,560
1,146
184
Georgia
Jun 13, 2014
#77
  • Jun 13, 2014
  • #77
Don't sell your guns or ammo! Those are the two best investments you can make right now. For years I would sell one gun to buy another. I wish I had never sold a single one. My collection would be double what it is if I hadn't.

Joe
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 13, 2014
#78
  • Jun 13, 2014
  • #78
RangerJoe said:
Don't sell your guns or ammo! Those are the two best investments you can make right now. For years I would sell one gun to buy another. I wish I had never sold a single one. My collection would be double what it is if I hadn't.

Joe
Click to expand...
With the price of ammo now I am tempted to sell one case of the 7.62, about 550 rounds if I remember correctly........but my Sig isn't ever going to for sale. The SKS is nice but I'd rather have the Mustang running now.
 

modulistic

Active Member
Nov 26, 2002
383
30
29
Jun 15, 2014
#79
  • Jun 15, 2014
  • #79
wowwww those bearings. for the more experienced guys, what would be the outcome of just popping in new bearings and running it like that for the summer?
 

BKM48198

15 Year Member
Jun 7, 2008
377
27
49
Ypsilanti, Michigan
Jun 15, 2014
#80
  • Jun 15, 2014
  • #80
I'm going to drop off the crank tomorrow at a machine shop and see what bearings I need after they get it ready. Already pulled the heads back off and am about to pull the engine apart the rest of the way, ended up with some overtime last week to help pay for part of the stuff I will need. Anyone know of somewhere to get a better price on a bearing/ring/gasket kit for less than summit.com? Looks to be about $220 for their kit.
 
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