More poly bush lubrication issues.

samco · Postby **samco** » 12 Jan 2008 08:37

I have rebuilt my rear suspension with poly bushes (dark blue) and used no lubricant. On the advice of a previous thread I did not tighten up the bolts until the car was sat on its suspension but now every time i get in and out of the car whilst working on it, it creaks and groans. Firstly when you tighten up the bolts do they pinch onto the metal insert holding it in place? If so when the suspension moves which bit gives as the new poly bush appears to have very little give. Whereas the old bush actually had voids in it and it was obvious how it worked. Surely the metal insert does not rotate around the bolt as it is not a bearing surface. I also cant see that the poly bush rotates in the suspension arms as its just to tight a fit. Has anyone had experience of creaky suspension with poly bushes and if so what is the cure if they are suposed to be self lubricating. I did post a similar thread about six months ago but never really got a finite answer.

If it doesn't fit you obviously need a bigger hammer.

www.metronewquay.co.uk www.wheelintheheel.co.uk

Check out my album

http://s163.photobucket.com/albums/t299/samco_bucket/

My youtube progress http://www.youtube.com/watch?v=4kMDqLU1N7Y

1980 Californian import converted to right hand drive V8. Under construction.

Wayne S · Postby **Wayne S** » 12 Jan 2008 09:18

I have used the harder orange polybushes on my trailing arms. I ised a little copper grease on the bolts, but more to stop then seizing in for the future as the old ones had to be cut out.

The idea is, from what I understand is to do things up loosely, then tighten all the suspension bolts to the right torque once the full weight of the car is on the wheels. Ive had no creaking issues with mine.

Wayne

Purple 2.0 Litre DHC Grinnal

Beans · Postby **Beans** » 12 Jan 2008 10:57

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Wayne S

... I ised a little copper grease on the bolts, but more to stop then seizing in for the future as the old ones had to be cut out...<hr height="1" noshade id="quote"></blockquote id="quote">
Better use a non conductive anti sieze compound. I used copper grease in the past but I had to cut the bolts with an air powered hacksaw nevertheless [B)]
Bolts had corroded solid in the stainless sleeve (after 9 years)

<center>

1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC
http://tr7beans.blogspot.com/</center>

FI Spyder · Postby **FI Spyder** » 13 Jan 2008 04:13

It would seem some poly might be self lubricating and some not. I have some clear high pressure synthetic grease I would put on any poly installation in the future. Being synthetic it should not dry out or promote electro-rusting.

TR7 Spider - 1978 Spifire - 1976 Spitfire - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra

jclay (RIP 2018) · Postby **jclay (RIP 2018)** » 13 Jan 2008 04:39

I greased every poly bushing and only had one that squeaked. I put a little 30 weight oil on it and never heard another peep.

Have fun, drive fast & safe, be kewl,

jclay

Beans · Postby **Beans** » 13 Jan 2008 15:57

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by FI Spyder

...Being synthetic it should not ... promote electro-rusting...<hr height="1" noshade id="quote"></blockquote id="quote">
Correct but the stainless steel inserts will do that if you use "normal" steel bolts. And as stainless steel bolts are not suitable for suspension parts you'll need some non conductive anti seize compound.

<center>

1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC
http://tr7beans.blogspot.com/</center>

colonel bogey · Postby **colonel bogey** » 13 Jan 2008 17:20

I used the satchet of white type grease supplied with my bushes,coated all parts of the bush and steel sleeve,when i rebushed the front of the "Colonel" have had no noise issues in 2 years.

Greg

'76 TR7 FHC Auto Java Green
"Colonel Bogey"

ngtf · Postby **ngtf** » 13 Jan 2008 18:36

Same as Greg, I used the supplied grease for each poly bush and have had no issues. Interestingly, some of the bushes were supplied with red grease and some with white!! As I always keep white grease, I used that on all bushes. Where bolts go through steel ferrules, I have always used proprietary copper grease.

Regards

Gary

Eeyore rides again !!

EOR14W - Persian Aqua 2L Dhc, Now rebuilt and looking lovely - Sprint engine being prepared!

Beans · Postby **Beans** » 13 Jan 2008 21:09

Copper grease is conductive [B)]

<center>

1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC
http://tr7beans.blogspot.com/</center>

ngtf · Postby **ngtf** » 13 Jan 2008 21:17

I am fully aware that copper grease is conductive but, in all my years of automotive engineering (and that is very many), I have found it does stop metal bits rusting together with other metal bits. It is also extremely good at stop the reactions between aluminium and steel.

Gary

Eeyore rides again !!

EOR14W - Persian Aqua 2L Dhc, Now rebuilt and looking lovely - Sprint engine being prepared!

Beans · Postby **Beans** » 14 Jan 2008 18:23

So our experiences are different here [:D]

<center>

1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC
http://tr7beans.blogspot.com/</center>

Anonymous

More poly bush lubrication issues.

More poly bush lubrication issues.

Who is online