Oil Pan Removal - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Camper Power · 07-21-2009, 02:48 PM

i know its possible with the engine still in the truck, just want to know if i have to lift the engine a bit for the pan to clear the cross member, and if i do do i need to remove the distributor, its an HEI. thanks

smoky02 · 07-21-2009, 03:10 PM

I didn't...just unbolted my motor mounts and picked the motor up a little. getting it out was the easy part. Back in really sucked.

mclairmo · 07-21-2009, 05:14 PM

If you have to lift the engine a little to slip the pan out, be sure to use a flat wooden board between your jack and the pan so you don't dent it and then unbolt the motor mounts and lift the engine. Check to be sure the HEI does not hit the firewall. Removing just the cap might give you enough clearance. Place 2x4 wooden blocks between the engine mounts and the frame brackets and lower the engine back down. Make sure the oil pump pick up is clean inside and has not wiggled itself loose. May want to make sure oil pump is not worn out while you have the pan off. Use a one piece rubber oil pan seal when you put it back on.

neonlarry · 07-21-2009, 06:48 PM

Also rotate the crank so timing mark is 180° out, this should give maximum clearance of the counterweights.

dave2953 · 07-21-2009, 10:13 PM

I also loosened the mounts a little and jacked the motor up. I have always had trouble clearing the flywheel without jacking the motor up. I have an HEI as well, but there's never been a clearance issue there...the fan shroud did have to come off, though. Good luck with it...it's one of my least favorite things to do on my truck. BTW, I second the one piece Felpro gasket suggestion.

07-21-2009, 02:48 PM	#1
Camper Power Registered User Join Date: Feb 2008 Location: Grande Prairie Alberta Posts: 261	Oil Pan Removal i know its possible with the engine still in the truck, just want to know if i have to lift the engine a bit for the pan to clear the cross member, and if i do do i need to remove the distributor, its an HEI. thanks __________________ eh 1970 Chevy C20 daily driver 1975 GMC Jimmy 4x4 project 1966 GMC C10 Dad's project

07-21-2009, 03:10 PM	#2
smoky02 Registered User Join Date: Oct 2003 Location: Sunny, Florida, some might call it South Alabama Posts: 834	Re: Oil Pan Removal I didn't...just unbolted my motor mounts and picked the motor up a little. getting it out was the easy part. Back in really sucked. __________________ Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart.

07-21-2009, 05:14 PM	#3
mclairmo Registered User Join Date: Jan 2006 Location: Take Off Posts: 1,908	Re: Oil Pan Removal If you have to lift the engine a little to slip the pan out, be sure to use a flat wooden board between your jack and the pan so you don't dent it and then unbolt the motor mounts and lift the engine. Check to be sure the HEI does not hit the firewall. Removing just the cap might give you enough clearance. Place 2x4 wooden blocks between the engine mounts and the frame brackets and lower the engine back down. Make sure the oil pump pick up is clean inside and has not wiggled itself loose. May want to make sure oil pump is not worn out while you have the pan off. Use a one piece rubber oil pan seal when you put it back on.

07-21-2009, 06:48 PM	#4
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	Re: Oil Pan Removal Also rotate the crank so timing mark is 180° out, this should give maximum clearance of the counterweights. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

07-21-2009, 10:13 PM	#5
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: Oil Pan Removal I also loosened the mounts a little and jacked the motor up. I have always had trouble clearing the flywheel without jacking the motor up. I have an HEI as well, but there's never been a clearance issue there...the fan shroud did have to come off, though. Good luck with it...it's one of my least favorite things to do on my truck. BTW, I second the one piece Felpro gasket suggestion. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.