350i Steering Rod bulkhead bush

350i Steering Rod bulkhead bush

Author
Discussion

Pigboger

Original Poster:

15 posts

121 months

Thursday 30th April 2015
quotequote all
The steering on the 350 is feeling a bit vague as you begin to turn the wheel. I have replaced the rack and everything else including the suspension seems fine. I suspect the bulkhead bush is a little tired. The steering rod appears to be about 3/4 inch in diameter. The car is 1988. Is there a replacement bush available or modification ?
Non power steering.
Many thanks in advance.

350zwelgje

1,820 posts

262 months

Thursday 30th April 2015
quotequote all
Yes there is a modification with a proper bearing.
If you do a google search on pistonhead, wedges, etc, the topic will pop up with all the information you need.
Done it myself and it works a threat.

Rob

Grady

1,221 posts

261 months

Thursday 30th April 2015
quotequote all
Although in my limited experience (two failed bushings on the 280i) the stock bushing doesn’t fail a little, it falls apart completely and the steering column flops around. Here is one of the threads: http://www.pistonheads.com/gassing/topic.asp?h=5&a...

I bought the US version of this bushing and may get it installed this weekend. Grady

stevoj

798 posts

162 months

Thursday 30th April 2015
quotequote all
Just done mine over the winter months.

My shaft size (that's opened a door!) is 14mm, you need to get a bigger bearing internal diameter and have a bush made,. I used a 3/4 internal diameter bearing, can get you the part number at weekend if you like.



Wedg1e

26,805 posts

266 months

Friday 1st May 2015
quotequote all
stevoj said:
My shaft size (that's opened a door!)...
Shaft, bush, flange, gusset. Male pin into female receptacle. Etc etc... biggrin


Grady

1,221 posts

261 months

Friday 1st May 2015
quotequote all
Did you do it yourself and if so any installation tips (oops "tips' may cause issues) Grady

Convert

3,747 posts

219 months

Friday 1st May 2015
quotequote all
This the best mod I've ever made to my car. It transformed the steering feeling.

LLantrisant

996 posts

160 months

Friday 1st May 2015
quotequote all
Convert said:
This the best mod I've ever made to my car. It transformed the steering feeling.
must agree....this mod. is a "must-do" on all cars with similar arrangement (certain TVR models, kitcars....)

stevoj

798 posts

162 months

Friday 1st May 2015
quotequote all
Grady said:
Did you do it yourself and if so any installation tips (oops "tips' may cause issues) Grady
Yes did it myself; it can be a bit tight to get the top knuckle back in, I had too nock the intermediate column all the way down onto the steering rack splines (removing locating and clamping bolt first) to get the top knuckle out but because the new bearing set up sticks out slightly further than the old bearing; I had to slacken the actual steering rack brackets on the chassis and move forward slightly to get the knuckle back in.
Also when you do it, make sure that none of the columns (top or intermediate) stick through the top knuckle further than before and catch on the knuckle block when turning. Other than pretty simple and as said above certainly feels better, even though original bush was still in half decent nick, that said didn't quite achieve the lighter steering I was hoping for on a none power steering set upsmile

hallsie

2,184 posts

221 months

Friday 1st May 2015
quotequote all
stevoj said:
Grady said:
Did you do it yourself and if so any installation tips (oops "tips' may cause issues) Grady
Yes did it myself; it can be a bit tight to get the top knuckle back in, I had too nock the intermediate column all the way down onto the steering rack splines (removing locating and clamping bolt first) to get the top knuckle out but because the new bearing set up sticks out slightly further than the old bearing; I had to slacken the actual steering rack brackets on the chassis and move forward slightly to get the knuckle back in.
Also when you do it, make sure that none of the columns (top or intermediate) stick through the top knuckle further than before and catch on the knuckle block when turning. Other than pretty simple and as said above certainly feels better, even though original bush was still in half decent nick, that said didn't quite achieve the lighter steering I was hoping for on a none power steering set upsmile
Sorry

All I got from the above was 'sticky top knuckle certainly feels better, and rack'

Stu

stevoj

798 posts

162 months

Friday 1st May 2015
quotequote all
hallsie said:
Sorry

All I got from the above was 'sticky top knuckle certainly feels better, and rack'

Stu
You missed "sticks out slightly further" smile

briantvr350i

115 posts

259 months

Friday 1st May 2015
quotequote all
Afternoon boys and girls...

Done this on my 350i very recently....

I used this part...

http://simplybearings.co.uk/shop/Housings+&+In...

Mounted INSIDE the footwell to make sure there is plenty of room for the UJ at the top of the steering shaft, does make a tremendous difference, wish I'd done it years ago.. The grub screws bite down onto the 3/4" splined section of the SD1 steering column.

PS:- I have one of the pressed steel types shown in the pictures sat in the garage which is available in exchange for beer tokens if required BNIB.


Brian and a Red 350i

Now featuring power steering... now that DOES make a difference!

adam quantrill

11,538 posts

243 months

Friday 1st May 2015
quotequote all
Wedg1e said:
stevoj said:
My shaft size (that's opened a door!)...
Shaft, bush, flange, gusset. Male pin into female receptacle. Etc etc... biggrin
You diptick! You forgot nipples, rod end, horn, knob.... ;^)

mrzigazaga

18,559 posts

166 months

Friday 1st May 2015
quotequote all
stevoj said:
can get you the fart number at weekend if you like.
Any fart numbers should be added to the Wedge farts list...
Which reminds me...I must clear out the 280 farts in the garage..silly

General Zod

334 posts

132 months

Thursday 20th October 2016
quotequote all
briantvr350i said:
Afternoon boys and girls...
Done this on my 350i very recently....
I used this part...

http://simplybearings.co.uk/shop/Housings+&+In...

Mounted INSIDE the footwell to make sure there is plenty of room for the UJ at the top of the steering shaft, does make a tremendous difference, wish I'd done it years ago.. The grub screws bite down onto the 3/4" splined section of the SD1 steering column.
This bearing on the inside seems like a much easier job than the one on the outside. As folk have pointed, with such a small space between the join in the steering shaft and the bulkhead, getting a bearing on the outside means it will have to point inwards. Comparing the 2 bearings (yes- I bought both because they were only a few £!): if you fit the one on the left (on the outside OR the inside) you have to take the hole in the bulkhead out to 50 mm accommodate the lip. The other one will sit flush, but would have to be fitted on the inside:







Just interested in any thoughts or good reasons why the bearing should be on the outside?

mk1fan

10,522 posts

226 months

Thursday 20th October 2016
quotequote all
Because TVR didn't leave enough space on the inside? smile

peter-m4nc3

2 posts

91 months

Thursday 20th October 2016
quotequote all
hi. has anyone tried fitting a corsa electric power steering system to their wedge ?
wondering if its a diy job or garage . and if anyone knows who does this type of conversiontongue outtongue outtongue out

mrzigazaga

18,559 posts

166 months

Thursday 20th October 2016
quotequote all
Hi Peter.

I had a Citroen saxo Electric PAS pump fitted to my 280i..This was only done as to make room for a supercharger...However I cannot say that the steering felt any better...But then it was for a space reason.
It needed a 50amp fuse and I had to upgrade the alternator as it drew a fair amount of juice from the battery...I did have a switch fitted so that it could be switched on if the engine failed..That was a killer on the battery though...


Ziga

peter-m4nc3

2 posts

91 months

Thursday 20th October 2016
quotequote all
the car started it's life with power steering . but someone along the way changed the rack. i've bought a re -oned rack but am a bit stuck on how to fit , where the pump goes and where to get the pipe work done . any info would me much much appreciated . thanks for the info about the saxo rack . hadn't thought about the draw down on the battery.

mrzigazaga

18,559 posts

166 months

Thursday 20th October 2016
quotequote all
Mine was a 280i so there was room in the nose cone for the pump...I still had the original rack though..Im sure someone on here had a different rack fitted??...I cannot remember who at the moment....