Pulling the motor in a C4
Thread Starter
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
Pulling the motor in a C4
Decisions are made, parts are on order, now it's time to do the work.
Anyone have tips on how to pull the motor on a '93 LT1 6-speed?
There is so friggin' little clearance in the front, even with all of the accessories off, it doesn't look like I get it forward enough to disengage it from the trans.
I doubt I can get it high enough without a hoist to pull them both out through the front (by angling the trans downward underneath)
Can I unbolt the trans and shift it back some to get clearance to separate the two?
Your advice based on experience would be fantastic.
TIA!
Anyone have tips on how to pull the motor on a '93 LT1 6-speed?
There is so friggin' little clearance in the front, even with all of the accessories off, it doesn't look like I get it forward enough to disengage it from the trans.
I doubt I can get it high enough without a hoist to pull them both out through the front (by angling the trans downward underneath)
Can I unbolt the trans and shift it back some to get clearance to separate the two?
Your advice based on experience would be fantastic.
TIA!
Last edited by ScaryFast; Sep 28, 2005 at 10:36 PM.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
It this an auto or a manual?
If it's a manual, you have to remove the tranny first. It's just so much easier.
With an auto, all you need is ~1.5" to 2" of forward and up to get it apart. Now, a tranny jack will make this a lot easier... but it's not bad at all.
If it's a manual, you have to remove the tranny first. It's just so much easier.
With an auto, all you need is ~1.5" to 2" of forward and up to get it apart. Now, a tranny jack will make this a lot easier... but it's not bad at all.
Burning Brakes
Joined: Nov 2004
Posts: 781
Likes: 0
Yes, the transmission needs to be removed or moved back a good 4 inches (not possible with shifter and C beam on the car). Then you still need to pull the engine more towards the front so the *** end tilts down. It can be done with the balancer and flywheel on the engine, but it is tight. I recommend dropping the trans and pulling the clutch and pressure plate, since the motor will have to go back in the same way. Once it is raised up a little, you may want to remove the balancer/pulley if it is going to be too tight, depending on where you position your engine hoist. The good news is you don't have to remove the hood if you come in from the side.
Melting Slicks
Joined: Jul 2003
Posts: 2,284
Likes: 4
From: Canton MI
Originally Posted by ScaryFast
Decisions are made, parts are on order, now it's time to do the work.
Anyone have tips on how to pull the motor on a '93 LT1?
There is so friggin' little clearance in the front, even with all of the accessories off, it doesn't look like I get it forward enough to disengage it from the trans.
I doubt I can get it high enough without a hoist to pull them both out through the front (by angling the trans downward underneath)
Can I unbolt the trans and shift it back some to get clearance to separate the two?
Your advice based on experience would be fantastic.
TIA!
Anyone have tips on how to pull the motor on a '93 LT1?
There is so friggin' little clearance in the front, even with all of the accessories off, it doesn't look like I get it forward enough to disengage it from the trans.
I doubt I can get it high enough without a hoist to pull them both out through the front (by angling the trans downward underneath)
Can I unbolt the trans and shift it back some to get clearance to separate the two?
Your advice based on experience would be fantastic.
TIA!
i live in canton , thats about 20 min from novi. i can stop by and help you out if you need it, i can also bring few corvette friends we can have the motor out in few hours
i also got a 10 sec lt4 motor for sale ready to go 
Last edited by red L98; Sep 28, 2005 at 10:13 PM.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by 500hp
Yes, the transmission needs to be removed or moved .
I disagree,
I have pulled the motor several times in both my 94 6 speed and my 84 auto and have yet to drop the trany and it has never been the slightest problem.
For the 6 speed leave the belll housing on the motor and unbolt the trany (Support trany with a jack)
Here is the 94 OEM motor pulled
Here is the HC motor going in the 94
Here is my LT1 HC motor going in
Last edited by FD2BLK; Sep 28, 2005 at 10:16 PM.
Thread Starter
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
Awesome. I had heard you can shift the tranny back and leave it under the car.
Balancer and all accessories are coming off to swap onto the new motor so I'll take most of them off while on the car to make the block easier to get out.
I have a better idea, I'll supervise and supply brew and you guys stop by and pull the motor.
Balancer and all accessories are coming off to swap onto the new motor so I'll take most of them off while on the car to make the block easier to get out.
I have a better idea, I'll supervise and supply brew and you guys stop by and pull the motor.
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Racer
Joined: Jul 2005
Posts: 393
Likes: 1
From: tx
Originally Posted by red L98
hey ,
i live in canton , thats about 20 min from novi. i can stop by and help you out if you need it, i can also bring few corvette friends we can have the motor out in few hours i also got a 10 sec lt4 motor for sale ready to go
i live in canton , thats about 20 min from novi. i can stop by and help you out if you need it, i can also bring few corvette friends we can have the motor out in few hours
i also got a 10 sec lt4 motor for sale ready to go 
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by ScaryFast
Awesome. I had heard you can shift the tranny back and leave it under the car.
I have a better idea, I'll supervise and supply brew and you guys stop by and pull the motor.
I have a better idea, I'll supervise and supply brew and you guys stop by and pull the motor.
Instructor
Joined: Mar 2004
Posts: 139
Likes: 5
From: Cleveland oh
how mine went
I pulled my accessories off for the most part, but left the radiator in. I did pull the fans. I ended up taking the pulley off the balancer and inching it forward enough to get it out with the bellhousing still on it. I had the jack the 6 speed up to the bottom of the floor to give it enough angle to get loose. I felt that this was pretty hard on the input shaft and I think I'll probably take the c beam and driveshaft loose and pull the tranny back a bit before I try to reinstall the engine. This is partially because of the "clutch alignment tool" type issues I have trying to get the input shaft to re-engage.
Mine should be going back together within a month. I'll have my new engine assembled by late next week.
Mine should be going back together within a month. I'll have my new engine assembled by late next week.
Thread Starter
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
Originally Posted by FD2BLK
No need to pull the trany back just place a jack under it and thats it. If you where local i would be more then happy to help but Mi. is just a little to far of a trip from Charleston. The front of the motor is the real PITA, BTW one tip is unbolt the A/C comp and leave it on the car with the lines connected. I have never recharged my A/C and see a common mistake is some disconnect the A/C lines. THe radiator can stay as well the only reason i pulled it last time was for the instalation of the B-cool but the first time it stayed in place
I'm not too worried about taking off the balancer. Not only is it easy now since I just did an opti two months ago, but it has to come off to go on the new block.
FD2BLK, just leave now. You should be here by Saturday.
