damn it!! Broke the oil pump shaft.

Dark_5.0 · 04-20-2004, 12:03 PM

Finaly took the car to the track. Never was able to get a clean run. But when I crossed the line I looked down at the speedo and seen the oil pressure drop down to "0"

I immediately turned the car off and towed it home.

I drained all of the oil and it looked clean with no shavings. I pulled the distributor out and then dropped a magnet down and pulled the oil pump shaft out. It broke at the very end of the shaft where it goes into the pump.

I am going to cut the filter open tonight and see if it did any damage.

Is it possible to remove the oilpan and change the pump with the engine in the car?

I dont think it would damage the main bearings cause they were still in a oilbath even though the pump went out.

I am going to cross my fingers and hope for the best.

Any advice?

tireburner163 · 04-20-2004, 12:14 PM

Join the club

-Josh, aka the tireburner

302 LX Eric · 04-20-2004, 12:51 PM

Dark - I don't believe that you can do the swap with the engine in the car - or if you can you're gonna have alot of bloody knuckles!

I would pull the motor (really not that bad to do) and install an ARP shaft.

Prior to the breakage, how was the car running? I haven't heard much about it lately.

Take it easy,
E

Falcons Talon · 04-20-2004, 12:52 PM

I was told on this website that it could be done. I was told it would be a tight squeeze, but after you jacked up the engine enough, you could rotate the pane and replace the pump. the shaft, of course would go down through the top of the engine.

I ended up towing mine to a shop way back when, so I didn't actually do it.

Good luck.

Abel

Dark_5.0 · 04-20-2004, 01:31 PM

Quote:

Originally posted by 302 LX Eric
Dark - I don't believe that you can do the swap with the engine in the car - or if you can you're gonna have alot of bloody knuckles!

I would pull the motor (really not that bad to do) and install an ARP shaft.

Prior to the breakage, how was the car running? I haven't heard much about it lately.

Take it easy,
E

Fist run 1.77 60ft and missed 2nd gear and then just coasted through.

Second run I broke the oil pump shaft and never went to get the timeslip.

Man this sux

302 LX Eric · 04-20-2004, 02:23 PM

I dunno if it's any consolation, but if you were close, I would give you a hand with the work.

The 1.77 on slicks?

E

Ackbar00 · 04-20-2004, 02:38 PM

Quote:

Originally posted by Dark_5.0

Is it possible to remove the oilpan and change the pump with the engine in the car?

Any advice?

It is possible, a buddy of mine did it, but he said it would have been easier to pull the motor

Sorry.

Dark_5.0 · 04-20-2004, 02:48 PM

Quote:

Originally posted by 302 LX Eric
I dunno if it's any consolation, but if you were close, I would give you a hand with the work.

The 1.77 on slicks?

E

Yeah on slicks I only launched it at 4000 cause I was getting a feel for the car.

Looks like I got a busy week ahead of me.

Falcons Talon · 04-20-2004, 03:14 PM

Too bad you not closer to the Rio Grande Valley, or I'd go help you out.

Dark_5.0 · 04-20-2004, 04:23 PM

I needed to repaint under the hood and replace the cowl panel anyways so this will be a good time to do it since I have to pull the engine.

Is a windage tray a worthy mod while I am in there?

Ackbar00 · 04-20-2004, 07:18 PM

Quote:

Originally posted by Dark_5.0
Is a windage tray a worthy mod while I am in there?

Yep.

So is a turbo kit

Hozer 88GTConv · 04-20-2004, 08:17 PM

According to Al Kirschenbaum you'd recoup approximately 10-15 hp by installing a windage tray. The parasitic drag of the oil bath on the rotating assembly at high RPM's is something to consider.

I also think you can get at the entire oil pump assembly and shaft w/o r and r'ing the motor, but it would be tight But, if you have already decided to do so, cool.

Good luck...

~The Jester~ · 04-20-2004, 11:45 PM

Done this! Yes it can be done. take off the motor mount bolts, jack up the engine as high as you can go. Drop the oil pan (won't come out of the car yet!) then drop the oil pump into the pan. Weasel said oil pump and drive shaft out, weasel new oil pump and driveshaft in. Definitely go with the ARP bigger driveshaft.

tireburner163 · 04-21-2004, 12:22 AM

It can be done, I did it.

Unbolt the tranny mount, unbolt the motor mounts and jack the motor up as far as you can. Drop the pan and lay it on the K-member. Drop the pump and replace the shaft. It's simple.

-Josh, aka the tireburner

Dark_5.0 · 04-21-2004, 07:40 AM

Thats what I wanted to hear guys

Ill try that.

andy669 · 04-21-2004, 08:07 AM

I had that happen once. When I took the pump apart I found a piece of aluminum stuck in there. You might want to do some investigating.

Andy

Dark_5.0 · 04-21-2004, 10:32 PM

I cut the oil filter open and I had to look really good to find anything. I found 2 glitter sized pieces off copper.

I drained all of the oil and poored it through a paper towel and found nothing.

I imagine what I found is normal for a filter with about 100 drag strip passes and no daily driving.

04-20-2004, 12:03 PM	#1
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	damn it!! Broke the oil pump shaft. Finaly took the car to the track. Never was able to get a clean run. But when I crossed the line I looked down at the speedo and seen the oil pressure drop down to "0" I immediately turned the car off and towed it home. I drained all of the oil and it looked clean with no shavings. I pulled the distributor out and then dropped a magnet down and pulled the oil pump shaft out. It broke at the very end of the shaft where it goes into the pump. I am going to cut the filter open tonight and see if it did any damage. Is it possible to remove the oilpan and change the pump with the engine in the car? I dont think it would damage the main bearings cause they were still in a oilbath even though the pump went out. I am going to cross my fingers and hope for the best. Any advice? __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

04-20-2004, 12:14 PM	#2
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Join the club -Josh, aka the tireburner __________________ 1987 Buick T-type 1998 HD Electra Elide

04-20-2004, 12:51 PM	#3
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	Dark - I don't believe that you can do the swap with the engine in the car - or if you can you're gonna have alot of bloody knuckles! I would pull the motor (really not that bad to do) and install an ARP shaft. Prior to the breakage, how was the car running? I haven't heard much about it lately. Take it easy, E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

04-20-2004, 12:52 PM	#4
Falcons Talon T.P.M. President Join Date: May 2002 Location: Brownsville Posts: 265	I was told on this website that it could be done. I was told it would be a tight squeeze, but after you jacked up the engine enough, you could rotate the pane and replace the pump. the shaft, of course would go down through the top of the engine. I ended up towing mine to a shop way back when, so I didn't actually do it. Good luck. Abel __________________

04-20-2004, 03:14 PM	#9
Falcons Talon T.P.M. President Join Date: May 2002 Location: Brownsville Posts: 265	Too bad you not closer to the Rio Grande Valley, or I'd go help you out. __________________

04-20-2004, 02:23 PM	#6
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	I dunno if it's any consolation, but if you were close, I would give you a hand with the work. The 1.77 on slicks? E

04-20-2004, 04:23 PM	#10
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	I needed to repaint under the hood and replace the cowl panel anyways so this will be a good time to do it since I have to pull the engine. Is a windage tray a worthy mod while I am in there? __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

04-20-2004, 08:17 PM	#12
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Windage tray... According to Al Kirschenbaum you'd recoup approximately 10-15 hp by installing a windage tray. The parasitic drag of the oil bath on the rotating assembly at high RPM's is something to consider. I also think you can get at the entire oil pump assembly and shaft w/o r and r'ing the motor, but it would be tight But, if you have already decided to do so, cool. Good luck... __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

04-20-2004, 11:45 PM	#13
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Been here... Done this! Yes it can be done. take off the motor mount bolts, jack up the engine as high as you can go. Drop the oil pan (won't come out of the car yet!) then drop the oil pump into the pan. Weasel said oil pump and drive shaft out, weasel new oil pump and driveshaft in. Definitely go with the ARP bigger driveshaft. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

04-21-2004, 12:22 AM	#14
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	It can be done, I did it. Unbolt the tranny mount, unbolt the motor mounts and jack the motor up as far as you can. Drop the pan and lay it on the K-member. Drop the pump and replace the shaft. It's simple. -Josh, aka the tireburner __________________ 1987 Buick T-type 1998 HD Electra Elide

04-21-2004, 07:40 AM	#15
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Thats what I wanted to hear guys Ill try that. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

04-21-2004, 08:07 AM	#16
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	I had that happen once. When I took the pump apart I found a piece of aluminum stuck in there. You might want to do some investigating. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

04-21-2004, 10:32 PM	#17
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	I cut the oil filter open and I had to look really good to find anything. I found 2 glitter sized pieces off copper. I drained all of the oil and poored it through a paper towel and found nothing. I imagine what I found is normal for a filter with about 100 drag strip passes and no daily driving. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

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