installing pilot bushing ?
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installing pilot bushing ?
I'm on my 2nd try to get the pilot bushing into the crank. The first time it went in very hard using a socket/hammer. After getting it in, the transmission input shaft would not fit; I found this out after installing the new clutch and pressure plate, and the old bellhousing. Either I didn't get it in straight or the I.D. shrunk due to the strain of the tight fit on the crank.
Are there any instalation tricks here? Has anybody else experianced this?
Thanks in advance.
Are there any instalation tricks here? Has anybody else experianced this?
Thanks in advance.
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
The chamfered end goes on the tranny side, also lube the pilot bushing before installing the crank.
I use an old input shaft to hammer mine in, gets em in prefect every time, you don't need that much force to get one in.
I use an old input shaft to hammer mine in, gets em in prefect every time, you don't need that much force to get one in.
Melting Slicks
Joined: Nov 2001
Posts: 2,659
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From: Katy (Houston) TX
CI 7-8 Veteran
I soaked my pilot bushing in oil overnight first and I think it helped a bit. I used a socket and hammer and it still took a while to get it in but what fun is getting it in quickly? 
Tech Contributor
Joined: Aug 1999
Posts: 15,114
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From: Connecticut, USA
First check the bushing for metal content with a magnet. I found the new lakewood bushing I bought from Summit last year was magnetic, Picked one up from NAPA for half the cost that wasn't. The metallic ones can heat up and cause you problems. I used an input shaft to install it too,it supports the hole from being crushed.
Gary
Gary
Melting Slicks
Joined: Dec 2000
Posts: 2,198
Likes: 2
From: Eastern Connecticut
Originally Posted by 70vert
I'm on my 2nd try to get the pilot bushing into the crank. The first time it went in very hard using a socket/hammer. After getting it in, the transmission input shaft would not fit; I found this out after installing the new clutch and pressure plate, and the old bellhousing. Either I didn't get it in straight or the I.D. shrunk due to the strain of the tight fit on the crank.
Are there any instalation tricks here? Has anybody else experianced this?
Thanks in advance.
Are there any instalation tricks here? Has anybody else experianced this?
Thanks in advance.
Race Director
Joined: Apr 2000
Posts: 17,649
Likes: 189
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
How did yo mange to get it out ?
Did you inspect it after you got it out, did you try to fit it on the end of the shaft ? If it goes on the shaft then you had an alignment prpblem
Did you inspect it after you got it out, did you try to fit it on the end of the shaft ? If it goes on the shaft then you had an alignment prpblem
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Thanks guys,
I think my problem is the clutch to pilot bushing allignment. I got another pilot bushing and took .002" off the OD and about the same on the ID; it still was a tight fit onto the crank. I test fitted the transmission input shaft after installing the bushing and before installing the clutch/pressure plate/bellhousing and the fit is good.
I tried engaging the clutch while pushing on the trans to get it to in the last 9/16", it didn't help, I don't think the clutch plate moved at all. I guess I just need to do a better job of alligning the clutch, there's alot of slop in the allignment tool however. I'll contiunue with dissamsble/assemble untill I finally get it right. I hope it doesn't take too many more times.
Thanks
I think my problem is the clutch to pilot bushing allignment. I got another pilot bushing and took .002" off the OD and about the same on the ID; it still was a tight fit onto the crank. I test fitted the transmission input shaft after installing the bushing and before installing the clutch/pressure plate/bellhousing and the fit is good.
I tried engaging the clutch while pushing on the trans to get it to in the last 9/16", it didn't help, I don't think the clutch plate moved at all. I guess I just need to do a better job of alligning the clutch, there's alot of slop in the allignment tool however. I'll contiunue with dissamsble/assemble untill I finally get it right. I hope it doesn't take too many more times.
Thanks
Race Director
Joined: Mar 2001
Posts: 11,322
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From: Living in the Hartland
Are you rotating the trans to get the splines to mesh? I usually need to wiggle the yoke/driveshaft back and forth a little to get them to mesh up. If you have the yoke and driveshaft installed you can jack the back end off the ground with the car in nuetral and rotate a tire back and forth a little to make the trans rotate.
Instructor
Joined: Jun 2001
Posts: 231
Likes: 0
From: Cedar City UT
Originally Posted by 70vert
I'm on my 2nd try to get the pilot bushing into the crank. The first time it went in very hard using a socket/hammer. After getting it in, the transmission input shaft would not fit; I found this out after installing the new clutch and pressure plate, and the old bellhousing. Either I didn't get it in straight or the I.D. shrunk due to the strain of the tight fit on the crank.
Are there any instalation tricks here? Has anybody else experianced this?
Thanks in advance.
Are there any instalation tricks here? Has anybody else experianced this?
Thanks in advance.
If that's the case and it sounds like it to me from personel experience, then you'll have to get the crank machined or you could ask your machinist if he has a Dorman 690 - 034 bushing made to correct this problem.
Evidently the General saved a few bucks by not doing the final machine work on cranks going in automatic cars. Dorman made this bushing for people doing conversions from auto to manual trans.
I had a 327 crank out of a pass car that had the same problem and returned to machine shop to have it corrected. Thae machinist did a little research and came up with this bushing and saved me a few bucks.
I read your post when it came out while at work and did'nt have the p/n at that time. That why I;m late posting this reply. Hope it helps you and others out having this problem. LOL
Bob
Melting Slicks
Joined: Dec 2000
Posts: 2,198
Likes: 2
From: Eastern Connecticut
Originally Posted by 70vert
I tried engaging the clutch while pushing on the trans to get it to in the last 9/16", it didn't help, I don't think the clutch plate moved at all.
Thanks
Thanks
Last edited by joe73vette; Sep 15, 2004 at 05:22 PM.
