Home 
Home Search search Menu menu Not logged in - Login | Register
> Jensen Healey & Jensen GT Tech > Suspension > Steering Rack Lubrication

 Moderated by: Greg Fletcher
New Topic Reply Printer Friendly
Steering Rack Lubrication  Rating:  Rating
AuthorPost
 Posted: 04-05-2005 07:42 pm
  PM Quote Reply
1st Post
Dan Eiland
Member
 

Joined: 03-18-2005
Location: El Paso, Texas USA
Posts: 159
Status: 
Offline
I'm in the process of reinstalling my steering rack after rebuilding my front suspension and installing new boots on the rack. Since I lost what little amount of lubricant that was in my steering rack I was wondering if someone knows a good method for refilling the rack? I think it originally used 90 wt gear oil. I have heard some people have replaced the gear oil with grease and install a grease nipple in the cover plate where they can easily refill the rack as needed. They tell me it solves the problem of leaking oil out the rubber boots. Has anyone ever tried this on their Jensen Healey?

Back To Top PM Quote Reply  

 Posted: 04-06-2005 02:10 pm
  PM Quote Reply
2nd Post
Brian Kelly
Member
 

Joined: 03-22-2005
Location:  
Posts: 43
Status: 
Offline
Great question Dan, as I recall the shop manual says NILL about the type of lubrication to use in the rack.  I seem to recall filling mine with 20w50 motor oil.  I would not recommend it though.  I’ve got a lot of seepage out of the boots.  The grease would be a great solution.  So I hope we hear from someone who has tried it.

Brian

Back To Top PM Quote Reply

 Posted: 04-06-2005 03:20 pm
  PM Quote Reply
3rd Post
Dan Eiland
Member
 

Joined: 03-18-2005
Location: El Paso, Texas USA
Posts: 159
Status: 
Offline
I have now heard from two people who own Sunbeam Tigers with MGB racks in them. Both say they use Mobil 1 grease in their rack and pinions and say it works great and have no issues with leaks or any other issues. One said he had been using it for several years. I don't think they fill the boot area with grease. From what I can tell they are filling the area around the bearing and pinion. Another person I heard from says he rebuilt an MGB rack that had been filled with grease and the internal parts looked like new. Would like to hear from others on the subject. So far I have heard not to use grease but I haven't heard why. All the replies so far have told me to use gear oil of one type or another, but it seems to be the consensus that is what was used by the factory. Anyone ever use Synthetic grease?

Back To Top PM Quote Reply  

 Posted: 04-06-2005 03:34 pm
  PM Quote Reply
4th Post
Mark Rosenbaum
Member


Joined: 03-12-2005
Location: Kingman, Arizona USA
Posts: 532
Status: 
Offline
Section E12 of the shop manual conveys everything Jensen wanted anyone to know about lubricating the steering rack.  Apparently one is to smear a thin coating of grease on the oil seal and pinion shaft during assembly, and later is to "inject the correct quantity of lubricant into the steering gear."  Unfortunately they do not describe "inject" nor does the manual anywhere specify the type of lubricant to use.

IIRC, when this same topic came up a couple of years ago, the concensus was to follow MG's practice and use EP90 gear oil, which has roughly the same viscosity as 50W motor oil (but rather different additives of course).  I don't know that a grease would be a good choice, but a very light and fluid one might be acceptable.

I added EP90 gear oil to my car's steering rack when I R&R'd the rack and replaced the gaiters about 4 years ago, and just poured the stuff into the rack while the top cover was off.  I've never seen any signs of leakage, so either the rack isn't leaking, or all the oil ran out when I wasn't looking.  Guess I ought to check....

Back To Top PM Quote Reply

 Posted: 03-09-2007 11:54 pm
  PM Quote Reply
5th Post
Joseph Mazurk
Member
 

Joined: 03-14-2005
Location: Chicago, Illinois USA
Posts: 38
Status: 
Offline
I hope this clears up this topic once and for all. I bought a Haynes Vauxhall Magnum 1800& 2300 owners workshop manual from a guy in England. I bought this manual because I was uncertain as to how much fluid to put in the steering rack. On page 155, Chapter 11/ Suspension and Steering, Section 16 Steering gear-examination, adjustment,removal and replacement it states, "stand the unit on end, refill the housing with 1/4 pint (4 ounces) of SAE 90 EP lubricant".....

 

....so there you go folks finally the answer we all been looking for.

 

                                                    Joseph Mazurk

                                                    Chicago, IL

Back To Top PM Quote Reply  

 Posted: 03-09-2007 11:54 pm
  PM Quote Reply
6th Post
Joseph Mazurk
Member
 

Joined: 03-14-2005
Location: Chicago, Illinois USA
Posts: 38
Status: 
Offline
I hope this clears up this topic once and for all. I bought a Haynes Vauxhall Magnum 1800& 2300 owners workshop manual from a guy in England. I bought this manual because I was uncertain as to how much fluid to put in the steering rack. On page 155, Chapter 11/ Suspension and Steering, Section 16 Steering gear-examination, adjustment,removal and replacement it states, "stand the unit on end, refill the housing with 1/4 pint (4 ounces) of SAE 90 EP lubricant".....

 

....so there you go folks finally the answer we all been looking for.

 

                                                    Joseph Mazurk

                                                    Chicago, IL

Back To Top PM Quote Reply

 Posted: 03-10-2007 02:31 am
  PM Quote Reply
7th Post
Mark Rosenbaum
Member


Joined: 03-12-2005
Location: Kingman, Arizona USA
Posts: 532
Status: 
Offline
Thank you, Joe!  I have annotated my shop manual accordingly.

Last edited on 03-10-2007 02:36 am by Mark Rosenbaum

Back To Top PM Quote Reply  

 Posted: 03-10-2007 04:08 am
  PM Quote Reply
8th Post
Dan Eiland
Member
 

Joined: 03-18-2005
Location: El Paso, Texas USA
Posts: 159
Status: 
Offline
I agree with Mark in that we owe you a Thank You for sharing this information. Of course this doesn't really change my opinion that it should be OK to use Mobil One Synthetic Grease. It should be light enough to work on the parts and thick enough that it will not leak out. Also easier to add once in a while if one feels it is necessary.

Back To Top PM Quote Reply

 Posted: 03-10-2007 02:47 pm
  PM Quote Reply
9th Post
Jensen Healey
Super Moderator


Joined: 03-11-2005
Location: San Anselmo, California USA
Posts: 905
Status: 
Offline

I have been using grease. There was a zerk fitting on the cover plate of my first steering rack and I used it due to the cracked boots. I live in a moderate climate and the car is in a warm (50^) garage all winter so frozen grease is not an issue here.

When installing the spare rack (less slop, new tie rod ends and boots) I transferred the plate and filled it with grease. No issues to report.

Now that Joe has supplied the service information I would use the correct lube if repeating the process.

Kurt

Back To Top PM Quote Reply  

 Posted: 05-02-2007 04:26 am
  PM Quote Reply
10th Post
DeDub
Member


Joined: 04-10-2005
Location: Sebastopol, CA, California USA
Posts: 23
Status: 
Offline
I recently spoke with Delta, and the fellow there was a mechanic/salesperson for JH back in the day.  He says he personally came up with the idea of putting a zerk grease fitting on the oval plate on the bottom, and the results were so good that JH started recommending it themselves.  YMMV and it's his story but there you go.  

I just did it to my well worn rack and it didn't help the play so it's not a panacea but I've got a spare rack that looks good that I'm planning on putting on the car and I will move the zerk plate over to that rack.  Whether there's oil in there or not, I don't see that a regular shot of grease could hurt.   And that's MY 2 cents.

David

Back To Top PM Quote Reply

 Posted: 05-03-2007 03:38 am
  PM Quote Reply
11th Post
Arvin Appelman
Member
 

Joined: 03-14-2005
Location: Columbia, Tennessee USA
Posts: 44
Status: 
Offline
I installed a grease zerk a couple years ago and have been happy with the results

Arvin Appelman

19492

Back To Top PM Quote Reply  

 Posted: 05-04-2007 01:34 am
  PM Quote Reply
12th Post
Ron Earp
Member


Joined: 03-12-2005
Location: Cary, North Carolina USA
Posts: 339
Status: 
Offline
Thanks guys, that clears up a mystery for me. I tried to fill mine on the top plate but that didn't work worth a damn.

R

Back To Top PM Quote Reply

 Posted: 05-04-2007 04:13 am
  PM Quote Reply
13th Post
Dan Eiland
Member
 

Joined: 03-18-2005
Location: El Paso, Texas USA
Posts: 159
Status: 
Offline
I would guess that it really does not matter if you use grease or oil as long as the parts they come in contact with are not damaged by what is in either product and that all the parts that make up the steering mechanism than require lubrication receive the required amount of lubricant. People that have used grease in the steering rack have reported excellent results over 5 and 10 years use. I have even heard from a mechanic who has pulled one apart during a restoration reported that the rack was the cleanest he had seen in all his days of rebuilding the things. But on the otherside of the coin, you could probably hear the same comments about racks that used SAE 90w EP lubricant and have been properly kept up. As long as the boots and seals are kept in good condition to keep out contaminants I would say either lubricant would work fine. 

Back To Top PM Quote Reply  

 Posted: 11-06-2007 10:34 pm
  PM Quote Reply
14th Post
txk
Member
 

Joined: 11-06-2007
Location: Waikoloa, Hawaii USA
Posts: 13
Status: 
Offline
I am a new kid to Jensens but with a lot of experience with MGB's, I am about to replace my R&P box as well as tie rods and tie rod ends. I have never done this before and need to know what is involved in removal and replacement interface with the steering column. It appears that there is a set bolt at the end of the steering column and I am assuming that this is loosened and the R&P box slips out. I don't know if anything else is involved. Any help will be appreciated. Thanks to all for the conversations on gear oil vs grease.

Last edited on 11-07-2007 12:33 am by txk

Back To Top PM Quote Reply

 Posted: 11-07-2007 06:11 pm
  PM Quote Reply
15th Post
Arvin Appelman
Member
 

Joined: 03-14-2005
Location: Columbia, Tennessee USA
Posts: 44
Status: 
Offline
There is a pinch bolt that holds the steering shaft u-joint to a knurled shaft on the top of the r&p box.  Remove the pinch bolt and slide the yoke off the r&p shaft. 

Back To Top PM Quote Reply  

 Posted: 11-08-2007 06:28 am
  PM Quote Reply
16th Post
txk
Member
 

Joined: 11-06-2007
Location: Waikoloa, Hawaii USA
Posts: 13
Status: 
Offline
 

Arvin - thanks for the info. - Gary

Last edited on 11-08-2007 06:29 am by txk

Back To Top PM Quote Reply

 Posted: 06-03-2008 05:20 am
  PM Quote Reply
17th Post
pbahr
Member


Joined: 04-15-2005
Location: Moorestown, New Jersey USA
Posts: 198
Status: 
Offline
I just replace the Gaiter on the R/P assembly, and added 1/3 pint of SAE 90 oil by shoving a piece of small diameter hose under the small diameter of the Gaiter.  Shoved it in far enough to reach the gears.

I used a MyteVac (sp?), filling the cup with proper amount of lube and connected the pressure output (not the vacuum) to the Gaiter.  Took about 10 minutes and I was all done and cleaned up.

YELODOG

Back To Top PM Quote Reply  

 Posted: 08-10-2008 03:58 pm
  PM Quote Reply
18th Post
pbahr
Member


Joined: 04-15-2005
Location: Moorestown, New Jersey USA
Posts: 198
Status: 
Offline
Don't consider the grease vs oil issue lightly !

During some conversations on the subject of R/P lubrication, I happend to think about the use of grease.  While it might lubricate the Rack and Pinion gears, it will NOT flow to the two Heim (inner tie rod) joints.  Seems from lots of posts and the email list, this is where many problems occur.

IMHO, do NOT use grease.

Pete


Back To Top PM Quote Reply

Current time is 02:58 pm  
> Jensen Healey & Jensen GT Tech > Suspension > Steering Rack Lubrication Top




UltraBB 1.172 Copyright © 2007-2011 Data 1 Systems