home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 09-11-2020, 01:25 AM   #1
SLT16
Newbie
 
Join Date: Sep 2020
Default Foam insulation under manual shifter part no.

Hi Guys,

I have a 1987 740 GLE with the M47 transmission here in Australia.

I am wondering if 740s came with some sort of foam noise insulation under the shifter like the 240s did?

We recently did an AW70L to M47 swap. I never got any sort of insulation for under the shifter. Right now, its just the rubber boot and underneath it is the road.

As a result, there is very noticeable road/motor noise coming from under the shifter, and i don't think this is how they came from the factory as the noise is just ridiculously loud, courtesy of 1 layer of rubber covering the shifter hole.

If anyone has the part number or better yet, willing to sell one, i'd be more than inclined to purchase it from you.
SLT16 is offline   Reply With Quote
Old 09-11-2020, 03:11 AM   #2
tintintin
Board Member
 
Join Date: Sep 2012
Default

Quote:
Originally Posted by SLT16 View Post
I am wondering if 740s came with some sort of foam noise insulation under the shifter like the 240s did?
Not that I know of. There should be a rectangular bracket on top of the base of the rubber accordion boot flange that clamps it firm to the transmission tunnel with 4 bolts. Then the center console over that, with a leather boot. Is yours missing any of that?
tintintin is offline   Reply With Quote
Old 09-11-2020, 12:26 PM   #3
spock345
Board Member
 
spock345's Avatar
 
Join Date: Nov 2016
Location: Santa Cruz, CA
Default

Quote:
Originally Posted by SLT16 View Post
Hi Guys,

I have a 1987 740 GLE with the M47 transmission here in Australia.

I am wondering if 740s came with some sort of foam noise insulation under the shifter like the 240s did?

We recently did an AW70L to M47 swap. I never got any sort of insulation for under the shifter. Right now, its just the rubber boot and underneath it is the road.

As a result, there is very noticeable road/motor noise coming from under the shifter, and i don't think this is how they came from the factory as the noise is just ridiculously loud, courtesy of 1 layer of rubber covering the shifter hole.

If anyone has the part number or better yet, willing to sell one, i'd be more than inclined to purchase it from you.

At least for the 240s the part is hard to find. The quick and dirty solution is to just cut a hole in the middle of a large sponge (the 2-3 inch thick ones from the hardware store) and use that as insulation. It worked OK on my 240. I did coat the sponge with some of that rubberized spray coating so it wouldn't soak up water and oil down there. Probably not as good as the OEM closed cell foam part but it works.
__________________
1967 122s, B18-D, M40
1989 240 B230F (V15 cam, chipped EZK), M47 (Lost a fight with a Chevy express van)
2012 VW Tiguan 6 speed auto
spock345 is offline   Reply With Quote
Old 09-13-2020, 02:44 AM   #4
SLT16
Newbie
 
Join Date: Sep 2020
Default

Quote:
Originally Posted by tintintin View Post
Not that I know of. There should be a rectangular bracket on top of the base of the rubber accordion boot flange that clamps it firm to the transmission tunnel with 4 bolts. Then the center console over that, with a leather boot. Is yours missing any of that?
I've got the rubber boot around the shifter, and the rubber boot is clamped by a rectangular metal bracket with 4 bolts on each corner to the transmission tunnel. That's all i have.

When i had the auto in the car, there was pretty much zero noise coming from the center console. I think a piece of insulation has to be missing - at highway speeds there is just so much noise coming from the transmission tunnel.

I sprayed some household polyurethane foam underneath the car where the shifter hole is to act as a sound barrier and this worked quite well. However, the foam is extremely squeaky because the shifter vibrates and rubs the foam together and this is driving me nuts!
SLT16 is offline   Reply With Quote
Old 09-13-2020, 09:10 AM   #5
90volvo
Board Member
 
Join Date: May 2017
Location: Eldorado Springs Mo.
Default

Ive used a lawn mower air filter. Has the hole already and its flame resistant.
__________________
90 Volvo 240 19T-3 inch ex-Aw71-Npr-V cam-E85-Megasquirt-650cc inj.-280000 miles.

sons car- 93 240-15g turbo-chipped-95,000 miles. Slick car

Leave feedback- http://forums.turbobricks.com/showthread.php?t=355413
90volvo is offline   Reply With Quote
Old 09-13-2020, 12:51 PM   #6
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

700's don't use a foam seal AFAIK but there should be a rubber seal under the boot.


http://212.247.61.152/US/main.aspx?p...&artno=1365840

hiperfauto is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 03:16 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.