Hints and Tips - Steering Box Lubrication

From: Michael Lunch

Sent: 10 June 1999
To: British-Cars-Pre-war
Subject: A7 Steering box oil???

I am getting on a treat with the chummy and am working on the steering box. I seem to recall ON THIS LIST some comments on the use of a heavy oil instead of grease to fill the steering box? I recall the reason for oil was to stop grease slowly working its way up the inner column and dropping out in blobs on your clothes! The heaviest oil grade I can see locally is the EP140 that is recommended fill for the back axle. Any reason this would not be fine for the steering too?

To seal the threads on the outer column - where it screws into the aluminium gearbox housing - I am planning to use ordinary loctite thread sealer - any comments?

Mike Lunch


From: Pete Bishop

Sent: 11 June 1999
To: Michael Lunch
Subject: Re: A7 Steering box oil???

Having rebuilt my steering box I filled it with SAE 140 oil only to find it slowly weeps out around the the column threads and the side cover clamping / adjusting bolts where the gasket does not seem to fully seal them. On the recommendation of a friend in the Bristol A7 club who has rebuilt several, I have now filled it with graphite based grease which seems to have fixed the leakage problem.

Pete Bishop
Swindon UK


From:David Cochrane
Sent: 11 June 1999
To:Michael Lunch
Subject: Re: A7 Steering

Mike,

I have always used ordinary HMP grease for the Chummy's steering box, and never had any trouble with grease seeping out at the top. I tend to be worried that if you use oil, it might leak out more easily!

Regards,

David Cochrane,
Rugby, England.


From:Michael Lunch
Sent: 13 June 1999
To: David Laver
Subject: Re: A7 Steering box oil???

David,

>I've used both the Penright steering box oil
Where did you get this famous "Penrite" in UK? Anywhere near us in the South - I am in Bookham / Leatherhead.


>A problem I have is trying to deside how much slack at straight ahead to trade
>against the steering being stiff.
I have also wondered about this - I tried the gear all round it's 360 degree of operation, and reckon it's current position is as good a compromise as I can get - fairly tight straight ahead, with very tight spot at left lock. I had a go at "grinding off the tight spot" using valve grinding paste, but after about half an hour of fiddleing about could not really notice any significant change - so I have set it up "fairly tight" hoping it will "loosen up with wear"!

I did turn up a brass bush for the top "bearing" (at head of steering column) instead of the famous felt. Will I now be excommunicated? I nejoyed the little turning job - using my deceased father in law's very very old lathe - a nice satisfying little job.

>roller bearings replacing bushes - is that something you've heard of?
Not heard of! I am struggling just to get it back together in relatively standard trim.

People have mentioned "use a modern lip seal" on the steering arm - where can I get a suitable seal? Seven Workshop? A7 Service?


Date: Tue, 15 Jun 1999
From: David Laver
To:Michael Lunch
Subject: Re: A7 Steering box oil???

> Where did you get this famous "Penrite" in UK? Anywhere near us in the
> South - I am in Bookham / Leatherhead.

I get most things by post... I know Holdens stock it but this time I'll plug a Lancia specialist, Omicron at www.omicron.uk.co or 01508-570-351. Phone before about 3pm and either will get it to you for first post in the morning.

David


From:Bill Tantau
Sent: 11 June 1999
To:Michael Lunch
Subject: Re: A7 Steering box oil???

PENRITE makes a Steering Box Lube that is 1200wt goo. It's perfect for this use. I purchsed it from Restoration Supply, Reno, Neveda USA... eMail: The stuff is imported from OZ. They also sell 250, 600, and 1000 wt goo.

Bill Tantau
MGs


From: Michael Lunch
Sent: 13 June 1999
To: Pete Bishop
Subject: Re: A7 Steering box oil???

>rebuilt several, I have now filled it with graphite based
>grease which seems to have fixed the leakage problem.
>

Pete - this sounds excellent - can I ask which graphite based grease - what is it's name?


Date: Tue, 15 Jun 1999
From: Pete Bishop
To:Michael Lunch
Subject: Re: A7 Steering box oil???

It was an old tin I had had on the shelf in the garage. It was a blue and yellow Duckhams tin I think just called "HMP graphite based grease"

Pete


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