Discussion Forum - Northstar Chevelle Club

Members Login
Username 
 
Password 
    Remember Me  
NCC Forum Home Page -> NCC - Projects and Updates -> fixing a leak at the bottom of the PS Pitman Shaft?
Post Info TOPIC: fixing a leak at the bottom of the PS Pitman Shaft?
jim larson


2K+ Club

Status: Offline
Posts: 2739
Date:
fixing a leak at the bottom of the PS Pitman Shaft?
Permalink  
 

I wonder if this is going to work?  It had been leaking due to rust and croosion. I cleaned and cleaned, applied with a razor blade, will sand with various grits of sandpaper.  If it sticks it should work.  You can buy new shafts; but they are very expensive or find an old 66 or later PS gear with a good shaft.  But I thought I would give this a shot. 

I guess you could by a sleeve and install it after setting the shaft in the gear; but then you wouldn't be able to take the gear out again without messing up the bearing. 



Attachments
__________________

Jim L

Lake City
John D


2K+ Club

Status: Offline
Posts: 2791
Date:
Permalink  
 

JB should stick, and as it's not a load bearing surface, should hold up as a sealing surface. The only trick is get it back to round/concentric. Can you get it chucked in a lathe and "spin" sand/polish/machine the new surface? (the OEM center holes should still be there).

__________________

 

John D. - St. Louis Park, MN.

1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5

2018 Factory Five MkIV Roadster build thread
jim larson


2K+ Club

Status: Offline
Posts: 2739
Date:
Permalink  
 

I was just thinking about sanding by hand.  A lathe would be a lot better, maybe I can find someone here in Lake City for that.  I am pretty sure one of the local machine shops has one.  The center at the bottom is there; but would you have to take the threaded post out of the top?



__________________

Jim L

Lake City
dashboard


2K+ Club

Status: Offline
Posts: 2444
Date:
Permalink  
 

Jim,
You might try a farm implement dealer with a shop. We’ve used them on the farm to repair worn shafts on our combine and tractors. Usually less expensive and faster than waiting for the wrong part to arrive.


__________________

Kevin

Northwestern Ohio
dashboard


2K+ Club

Status: Offline
Posts: 2444
Date:
Permalink  
 

How many turns is that steering box lock to lock?

__________________

Kevin

Northwestern Ohio
jim larson


2K+ Club

Status: Offline
Posts: 2739
Date:
Permalink  
 

dashboard wrote:

How many turns is that steering box lock to lock?

 Kevin, this is an experiment that I am trying.  The 66 and maybe you buick had a ps gear with a 17:1 ratio, with a full arch of 86 degrees, so the original gear has 4 turns lock to lock.  Lots of people are doing upgrades to a stiffer feel and a quicker turn though various up grades or new gear boxes or the Jeep conversions or pay Lee out in CA $600.  This shaft is from a 66 with the 17:1 ratio however it will work with other pistons and worm gears that have a different ratio as long as the same arc is covered.

 

So here is what I am trying to do.  Change the turn ratio and effort; but use  a 66 dated gear box and cover.  I am Taking  the internals out of a 97 Jeep GC box and putting  them into  a 66 box with the 66 pitman shaft.  There is a little variance in the Jeep shaft, that won't allow me to use the cover on the 66 box (gear is to tight and I can't turn  the adjustment enough to loosen the gear enough so that it removes freely).  If I use the 66 pitman shaft, no problem.  I could use the jeep shaft, if I put a 1/16" shim between the box and the aluminun cover.

I also have a coupler from a 78 chevy truck that I got for $10 that will connect to 97 jeep input shaft to my 66 steering flange, since the input shaft on the jeep is 3/4" whereas the 66 input shaft is 13?16".  So far total expense  is $45 plus I will need a Jeep seal rebuild kit and a 66 pitman shaft seal kit.

Just trying  to see if this will work  and not for much money, to help  keep my brain functioning.  The original box will go on the storage shelf.



__________________

Jim L

Lake City
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
NCC Forum Home Page -> NCC - Projects and Updates -> fixing a leak at the bottom of the PS Pitman Shaft?
Chatbox
Please log in to join the chat!