Jump to content

Grease / Oil for Steering Box


EricHoman

Recommended Posts

Restorationstuff.com has Penrite Steering box lube.  It's a1200W oil specifically for the old steering boxes.  Page 25 of their catalog. LUB009 for $17.  I just bought some for my 25 after reading all of the comments and recommendations from doing a Google search.  Jay

Link to comment
Share on other sites

2 hours ago, JayG said:

Restorationstuff.com has Penrite Steering box lube.  It's a1200W oil specifically for the old steering boxes.

 

^^That stuff is a miracle. It does the job, and doesn't leak out.

 

 

 

Link to comment
Share on other sites

1 hour ago, David_Leech said:

I cannot back this up, but I believe autogreaser lube will work. It is semi- fluid and thin. I am going to run it in my box 

 

Thin steering box lube is not the best because it leaks out. You probably only have a felt seal on the bottom and on the sector shaft so you want a thick semi-fluid grease. The Penrite stuff is good; it is best to heat the bottle (e.g. hot water) to make it pourable!

Link to comment
Share on other sites

The problem with a heavy oil is that it's best dispensed into a plug hole. Early DB steering boxes are lubricated through a fitting, either Alemite or Zerk. A proper oil gun as beloved by owners of British cars up to the 1960's (particularly the Rover P3  which specifies oil for the front suspension) would be necessary if used in this case.  In any event I doubt if it would stay in the box for too long given the rather rudimentary sealing arrangements, particularly along the sector/wheel shaft..

 

I suspect that the original specification of graphite grease was made to reduce the effect of grease wiping given its clinging properties.  The modern equivalent, which I use, is a molybdenum disulphate grease.  This stuff is usually distinguished by its specification for extra heavy duty applications and black colour.  Yes, my steering feels like trying to mix concrete with a teaspoon - but don't they all!

Link to comment
Share on other sites

I use the Penrite Lube. I clean up the area around it and remove the oil nipple, heat the bottle of oil as hot as I can hold with oven gloves, then decant it very carefully down a clean piece of 2.5 mm fencing wire into the hole. Easy peasy.

 

I had a modern lip seal put in the bottom and an O-ring put in the outer end of the bush at the end of the steering shaft when I overhauled the steering box.

Link to comment
Share on other sites

3 hours ago, TonyAus said:

The modern equivalent, which I use, is a molybdenum disulphate grease.  This stuff is usually distinguished by its specification for extra heavy duty applications and black colour.  Yes, my steering feels like trying to mix concrete with a teaspoon - but don't they all!

Um, no, they don't! Mine doesn't.

 

We don't know the fluidity of graphite grease back then so I would not use a modern chassis grease with equivalent additives that does not flow back. Even with molypoly. It will last a while, but eventually you will have no lubrication on the worm.

Link to comment
Share on other sites

Any thoughts on using straight Lucas oil stabilizer in the steer box? Readily available and thick as molasses. Apparently you can use it 100% in a modern rear end (though I wouldn't) and considering what the steer box does, being a low speed device, I can't see any down side really

Link to comment
Share on other sites

A steering box is a high shear environment. Yes it is low speed, but the lubricant must be good for high shear.

 

What does an "oil stabiliser" do? There is no sensible information about it that says why one should use it as an additive to synthetic oil. It just reads like an oil but they don't want to say what it actually is. I am suspicious.

 

It is >45 cSt at 100 deg C, which puts it in the ISO 680 and top of the SAE 140 viscosity bands. So this is an oil rather than a grease.

 

Personally, I would not use it without a lot of research into what the stuff actually is. I see it is recommended to be added to synthetic oil: you are not proposing to use any synthetic oil. I would find a semi-fluid grease. Some on these fora have talked of Corn Head Grease for this purpose. Remembering that these old steering boxes are v. expensive to overhaul, I would use the proper stuff and not have a punt on something that appears risky without first reducing the risk with knowledge.

Link to comment
Share on other sites

  • 9 months later...

Re "particularly the Rover P3  which specifies oil for the front suspension" - the P3 suspension was all rubber bushed, except the kingpins, which had  a thrust ball bearing, seals , and a reservoir for a mix of heavy oil and grease. The bushes did not have a long life - too small for the loads.

jp 26 Rover 9

Link to comment
Share on other sites

On 8/10/2017 at 8:24 AM, TonyAus said:

The problem with a heavy oil is that it's best dispensed into a plug hole. Early DB steering boxes are lubricated through a fitting, either Alemite or Zerk. A proper oil gun as beloved by owners of British cars up to the 1960's (particularly the Rover P3  which specifies oil for the front suspension) would be necessary if used in this case.  In any event I doubt if it would stay in the box for too long given the rather rudimentary sealing arrangements, particularly along the sector/wheel shaft..

 

I suspect that the original specification of graphite grease was made to reduce the effect of grease wiping given its clinging properties.  The modern equivalent, which I use, is a molybdenum disulphate grease.  This stuff is usually distinguished by its specification for extra heavy duty applications and black colour.  Yes, my steering feels like trying to mix concrete with a teaspoon - but don't they all!

 

Pump up your front tyres to +45psi and have four of your mates in the back seat. Old skool power steering....?

Link to comment
Share on other sites

23 hours ago, mikewest said:

I use STP oil treatment. Its slippery and STICKY and doesn't get out. And its cheap...

Yeah, but is it designed for the sort of high pressure, sliding duty in a steering box? I think not. STP is an oil viscosifier, not a high pressure additive.

Link to comment
Share on other sites

  • 1 month later...

Another option the John Deere Corn Head Grease. This is a flowable grease that is designed for high sheer but slow speed, They use it in corn pickers that have a sort of steering mechanism for the machinery. The Ford guys swear by it. It flows to keep things lubricated but is thick enough not to leak. It comes in a grease cartridge so you can just load it up in your modern grease gun. I've used it with good results.

  • Like 1
Link to comment
Share on other sites

  • 2 months later...

An addendum to my comment on John Deere Corn Head Grease: The steering box on our '24 DB has only a grease fitting to fill the box. I removed the fitting and used a needle attachment at the end of my regular grease gun to shoot the grease deep into the box. At the same time, I jacked the front end just so the wheels would clear the pavement and then ran the steering back and forth, from end to end, in order to work the grease into the gearing as much as possible. Refill to the filler hole and repeat.

Link to comment
Share on other sites

4 hours ago, Eclector said:

order to work the grease into the gearing as much as possible. Refill to the filler hole and repeat.

You might have been better to put the stuff in, go away for a day, then top up. By working it, you push the grease away form the worm. It will flow back slowly, maybe not fast enough for you to see the difference at the filler hole. The excess goes the only place it can, inside the steering column.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...