help with oil pump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**jamie72** · 02-14-2003, 04:50 PM

well looks like i need to change out the oil pump in my 72 4x4 blazer,looks like im` going to have to jack up the motor to clear the engine cradle,anyone done this???
will i be able to get the pan off with out unbolting the engine??
btw its all stock susp.no body lift,just on 33`s
thanks

82 Silverado 4X · 02-16-2003, 01:34 PM

I know on the newer series 73-87 you can totally remove the oil pan without even raising the engine. I did this on my 77 Blazer Chalet and I beleive the 73-87's are all similar. Not sure if it is as easy on the older series trucks or not but I wouldn't be afraid to try it.

Mike C · 02-16-2003, 02:45 PM

I was not able to easily get the pan off on the Jimmy. The crossmember runs very close to the front of the pan sump. Not saying it cannot be done, but you definitely have to unbolt the motor mount bolts and raise the motor some. Now would be a good time to go ahead and do a timing chain as well if you haven't.

**jamie72** · 02-16-2003, 07:46 PM

well,went at it last night,HAD to unbolt motor,unbolt xmember slid it forward,to even think of it coming out.
haven`t reinstalled it yet,i sure don`t want to do this again...

6869704X4 · 02-17-2003, 12:29 PM

jamie72 What were your symptoms when you decided to change the pump?

**jamie72** · 02-17-2003, 05:37 PM

lower oil pressure than i like,runs great,no noises,don`t smoke,just lower oil pressure than i think it should have,about 40lbs cold and 15lbs at 1100 rpms,i know its still in the ballpark but i don`t want to get a tow bill if i can help it.

6869704X4 · 02-17-2003, 06:42 PM

It might be a little late now but check this out http://www.melling.com/support/bulletins/default.asp

**jamie72** · 02-17-2003, 07:17 PM

thanks for the link..good reading

02-14-2003, 04:50 PM	#1
jamie72 Senior Member Join Date: Apr 2000 Location: madison indiana Posts: 3,836	help with oil pump well looks like i need to change out the oil pump in my 72 4x4 blazer,looks like im` going to have to jack up the motor to clear the engine cradle,anyone done this??? will i be able to get the pan off with out unbolting the engine?? btw its all stock susp.no body lift,just on 33`s thanks __________________ jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com

02-16-2003, 01:34 PM	#2
82 Silverado 4X Genuine Chevrolet Join Date: Feb 2003 Location: South West Pennsylvania. Posts: 582	I know on the newer series 73-87 you can totally remove the oil pan without even raising the engine. I did this on my 77 Blazer Chalet and I beleive the 73-87's are all similar. Not sure if it is as easy on the older series trucks or not but I wouldn't be afraid to try it. __________________ George 82 Silverado LWB 4x4 350 SM465 NP208 77 Chevrolet Blazer Chalet 400 TH350 NP203

02-16-2003, 02:45 PM	#3
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,727	I was not able to easily get the pan off on the Jimmy. The crossmember runs very close to the front of the pan sump. Not saying it cannot be done, but you definitely have to unbolt the motor mount bolts and raise the motor some. Now would be a good time to go ahead and do a timing chain as well if you haven't. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

02-16-2003, 07:46 PM	#4
jamie72 Senior Member Join Date: Apr 2000 Location: madison indiana Posts: 3,836	well,went at it last night,HAD to unbolt motor,unbolt xmember slid it forward,to even think of it coming out. haven`t reinstalled it yet,i sure don`t want to do this again... __________________ jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com

02-17-2003, 12:29 PM	#5
6869704X4 Registered User Join Date: Jul 2002 Location: SE NM Posts: 769	jamie72 What were your symptoms when you decided to change the pump? __________________ The more I learn about women, the more I love my truck.

02-17-2003, 05:37 PM	#6
jamie72 Senior Member Join Date: Apr 2000 Location: madison indiana Posts: 3,836	lower oil pressure than i like,runs great,no noises,don`t smoke,just lower oil pressure than i think it should have,about 40lbs cold and 15lbs at 1100 rpms,i know its still in the ballpark but i don`t want to get a tow bill if i can help it. __________________ jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com

02-17-2003, 06:42 PM	#7
6869704X4 Registered User Join Date: Jul 2002 Location: SE NM Posts: 769	It might be a little late now but check this out http://www.melling.com/support/bulletins/default.asp __________________ The more I learn about women, the more I love my truck.

02-17-2003, 07:17 PM	#8
jamie72 Senior Member Join Date: Apr 2000 Location: madison indiana Posts: 3,836	thanks for the link..good reading __________________ jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com



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