Delrin bushes - fitting concern
#1
Pro
Thread Starter
Delrin bushes - fitting concern
Just bought some Delrin bushes and am in the process of fitting them.
But:
The shaft on the delrin bushes is 20mm long.
The steering rack lugs the bushes go through is 18mm thick.
This means the delrin bush protrudes 2 mm through the rack lugs
This will give a lot of slop up and down in the rack - more than was there before and the very thing I'm trying to eliminate.
What should I do? Cut the bushes 2mm shorter? Pack with a large washer that goes over the outside of the delrin shaft? Other?
(Time difference between Oz and US means I can't get hold of Roger to ask him directly)
Any hekp much appreciated.
Help appreciated.
Dave
David Overington
Principal
D. Overington Consulting
136 Lansdowne Way, Chuwar, Ipswich
Queensland 4306
AUSTRALIA
Email doverington@ozemail.com.au
Telephone 0421 087 100 (int'l +61 421 087 100)
But:
The shaft on the delrin bushes is 20mm long.
The steering rack lugs the bushes go through is 18mm thick.
This means the delrin bush protrudes 2 mm through the rack lugs
This will give a lot of slop up and down in the rack - more than was there before and the very thing I'm trying to eliminate.
What should I do? Cut the bushes 2mm shorter? Pack with a large washer that goes over the outside of the delrin shaft? Other?
(Time difference between Oz and US means I can't get hold of Roger to ask him directly)
Any hekp much appreciated.
Help appreciated.
Dave
David Overington
Principal
D. Overington Consulting
136 Lansdowne Way, Chuwar, Ipswich
Queensland 4306
AUSTRALIA
Email doverington@ozemail.com.au
Telephone 0421 087 100 (int'l +61 421 087 100)
#2
Pro
Thread Starter
Put them in as received, torqued it all up to spec. and all seems very good. Turns in noticeably better than before.
So all's good - thanks Roger, very pleased.
Dave
So all's good - thanks Roger, very pleased.
Dave
#3
Sorry no one was here to give you direction, but you figured it out. There will be no issues with the way you did it. Have fun and go hit some curves.
#4
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Same issue if you buy the Alu ones (I bought mine from Carl.) Looks wrong when you install them works fine when you tighten them up.
Edit. - I'm sure it turns in fine when you turn in - I'll confirm when the f£$%%$^&*(")&^%£$££%^& ing brakes work properly.
Edit. - I'm sure it turns in fine when you turn in - I'll confirm when the f£$%%$^&*(")&^%£$££%^& ing brakes work properly.
#6
Instructor
Looks good when you mount them, but after a while the rack is able to move up and down.
I cut mine down and used washers, then it should be clamped rigid to the mounting bracket.
#7
I dunno, mine didn't just look good, one of the corners wasnt mounted flush and I tried to move it. Took a hell of an effort with a large pry bar and stayed where I pried it.
EDIT- ....or were you talking about the aluminum ones?
EDIT- ....or were you talking about the aluminum ones?
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#8
Not understanding what the last two posts are talking about. The Alu ones are bad, or the delrin?
#9
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We are in the process of modifying both the Aluminium and the Delrin bushes.
It is possible that the rack can move up and down after fitting the bushes. This is also the case with the factory bushings if the tops are not peened down after installation.
Thanks to design input from David - see first post - this potentail issue will be eliminated.
Roger
It is possible that the rack can move up and down after fitting the bushes. This is also the case with the factory bushings if the tops are not peened down after installation.
Thanks to design input from David - see first post - this potentail issue will be eliminated.
Roger
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
#10
Rennlist Member
x2. I'm looking at replacing my bushing soon. Was going to go with the "aluminium" ones, but was concerned that the relatively soft aluminum would wear over time.
Delrin seems like it would allow a certain amount of minute movement without wearing, or with minimal wear given the slippery nature of delrin. So, questions:
Has anyone noticed any wear with the aluminum ones?
Has anyone noticed any wear with the delrin ones?
Delrin seems like it would allow a certain amount of minute movement without wearing, or with minimal wear given the slippery nature of delrin. So, questions:
Has anyone noticed any wear with the aluminum ones?
Has anyone noticed any wear with the delrin ones?
#12
Rennlist Member
x2. I'm looking at replacing my bushing soon. Was going to go with the "aluminium" ones, but was concerned that the relatively soft aluminum would wear over time.
Delrin seems like it would allow a certain amount of minute movement without wearing, or with minimal wear given the slippery nature of delrin. So, questions:
Has anyone noticed any wear with the aluminum ones?
Has anyone noticed any wear with the delrin ones?
Delrin seems like it would allow a certain amount of minute movement without wearing, or with minimal wear given the slippery nature of delrin. So, questions:
Has anyone noticed any wear with the aluminum ones?
Has anyone noticed any wear with the delrin ones?
#13
#15
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Are you sure you are refering to Delrin?
Delrin has a high resistance to fluids and oils.
Are you thinking of Nylatron maybe? Nylatron is similar to Delrin but has a high swell rate.
Delrin has a high resistance to fluids and oils.
Are you thinking of Nylatron maybe? Nylatron is similar to Delrin but has a high swell rate.