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Tony
Join Date: Sep 2007
Location: Cincinnati, OH
Posts: 1,149
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New G50 Shift Rod Bushing = significantly more shifting effort?
As part of a Rennshift install on my 87 G50 Carrera, I replaced the shift rod bushing with a new one that came with the kit. After I bolted everything back up, I noticed significantly increased shift effort fore and aft. I took it all apart again to see what the the problem was.
When I disconnected the shift rod from the coupler and the shifting mechanism (so the only thing it was attached to was the shift rod bushing), and tried to move the rod back and forth by hand, I found that it required A LOT of effort. Is this normal? (see pic) The book says that no lube is required in this area. Should I put some in there anyways? Will it hurt anything? I assume that my old bushing had naturally worn to a looser fit and that that is the difference in effort right now. Is this something that I just need to put a couple hundred miles on before it feels right? Effort is high when shifting, especially when going to 5th (which I think puts the most lateral stress on the bushing). I understand that this bushing was changed and made tighter fitting at some point in order to decreased shift rod vibration. Can/should I search for the older part? Any ideas? (Please excuse the duplicate post here and on Rennlist) 
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Tony 22 GT4 04 E46 M3 87 Carrera (sold - craving aircooled again) 12 991 Carrera (sold) |
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02-28-2009, 12:19 PM
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Tony
Join Date: Sep 2007
Location: Cincinnati, OH
Posts: 1,149
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bump
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Tony 22 GT4 04 E46 M3 87 Carrera (sold - craving aircooled again) 12 991 Carrera (sold) |
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03-01-2009, 04:40 AM
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Registered
Join Date: Jun 2003
Location: Calgary Alberta, CANADA
Posts: 2,113
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Here's a few ideas, The rod is always hard to move by hand, with the leverage of the shaft you can't really tell how tight it is. Also did you clean the rod when you installed it so no debris in there? the new bushing will be tighter because its new, my vote is to give it a few miles like you said.
If you're installing a short shift then it will be harder to shift for sure due to less leverage.
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We're all in the gutter,but some of us are looking at the stars. -Oscar Wilde |
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03-01-2009, 06:15 AM
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Tony
Join Date: Sep 2007
Location: Cincinnati, OH
Posts: 1,149
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OK I can clean it up a little. Would it hurt to put some lube in there?
I'm gonna bolt it up here soon because I won't get to it in 2 weeks if I don't. I will just continue to use it to see if it loosens up...
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Tony 22 GT4 04 E46 M3 87 Carrera (sold - craving aircooled again) 12 991 Carrera (sold) |
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03-01-2009, 06:38 AM
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Registered
Join Date: Jun 2003
Location: Calgary Alberta, CANADA
Posts: 2,113
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The problem with lube is that it can hold dirt but a bit shouldn't hurt... I would.
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We're all in the gutter,but some of us are looking at the stars. -Oscar Wilde |
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03-01-2009, 08:26 AM
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Tony
Join Date: Sep 2007
Location: Cincinnati, OH
Posts: 1,149
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Yeah I'm gonna put some white lithium grease on right now... As suggested by another member offline.
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Tony 22 GT4 04 E46 M3 87 Carrera (sold - craving aircooled again) 12 991 Carrera (sold) Last edited by Maxhouse97; 03-01-2009 at 10:58 AM.. Reason: grammar |
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03-01-2009, 08:52 AM
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Tony
Join Date: Sep 2007
Location: Cincinnati, OH
Posts: 1,149
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What a difference! Shifts like butter. If I have to go in there every once in a while to check for dirt / clean, it is definitely worth it!
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Tony 22 GT4 04 E46 M3 87 Carrera (sold - craving aircooled again) 12 991 Carrera (sold) |
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03-01-2009, 10:59 AM
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