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08-08-2013, 10:12 AM | #1 |
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End play adjustment screw
I was told by longtime Model A friend that my end play adjustment screw needed to be tightened up. My question is what tool do you use to adjust this slotted screw and exactly how "tight" should that screw be? A stubby slotted screwdriver does work in those tight quarters.
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08-08-2013, 10:24 AM | #2 |
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Re: End play adjustment screw
first, what are you working on.
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08-08-2013, 10:25 AM | #3 |
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Re: End play adjustment screw
An 'end-play' adjustment screw on what ? I'll assume you mean a 2 tooth steering box, but, I'm not sure. So, the first question is, how much steering wheel play do you have ? These boxes have 4 adjustments that need to be performed in order, so, my recommendation is to get the service bulletins for the instructions. These adjustments can be done while the box is still mounted in the car.
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08-08-2013, 10:30 AM | #4 |
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Re: End play adjustment screw
Yes, it's a two tooth and I went through all the adjustments last year and thought that I had it right. The other day the friend said to just tighten the end play adjustment screw as I have about 2" of play at the steering wheel.
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08-08-2013, 11:01 AM | #5 |
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Re: End play adjustment screw
Do as Patrick suggests with the service bulletins, there is an order to the adjustments as they have interactions between them. They will try your patience especially if the gears are worn.
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08-08-2013, 11:04 AM | #6 |
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Re: End play adjustment screw
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08-08-2013, 11:21 AM | #7 |
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Re: End play adjustment screw
I still haven't heard what tool to use since a normal stubby screwdriver won't work.
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08-08-2013, 11:37 AM | #8 |
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Re: End play adjustment screw
You can buy an off set screw driver at Sears or a decent tool store I used that with my adjustment before. Better yetI would take an old screw driver and cut it off and weld a small nut on the very short shaft making my own special tool and then turn it with a socket or a box end wrench or perhaps make a "T" handle
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08-08-2013, 11:46 AM | #9 |
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Re: End play adjustment screw
I just fired up the torch and 'warped' a screwdriver for the last adjustment while the box is in the car. The last adjustment usually doesn't require much if anything. But, other than that ordinary tools [wrench and screwdriver] work just fine.
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08-08-2013, 12:06 PM | #10 |
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Re: End play adjustment screw
Would someone be kind engough to paste the service bulletin instructions here for everyone?
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08-08-2013, 12:10 PM | #11 |
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Re: End play adjustment screw
why does'nt a stubby work? whats in your way
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08-08-2013, 12:35 PM | #12 |
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Re: End play adjustment screw
My stubby must be a little longer than other people's stubby.
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08-08-2013, 12:37 PM | #13 |
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Re: End play adjustment screw
i measure 3 1/2" clearance from screw slot to oil pan lip
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08-08-2013, 12:42 PM | #14 |
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Re: End play adjustment screw
B U Y... T H E... B o o k !
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08-08-2013, 12:57 PM | #15 | |
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Re: End play adjustment screw
Quote:
Really !? It would probably be easier and faster to just write/type the instructions than scan, file , transfer,etc.. Plus, every 'A' owner should have a repair manual and set of service bulletins. JMO though, which isn't worth too much. I don't think any of us mind helping someone. We enjoy it. But, folks have to try and help themselves too. |
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08-08-2013, 12:59 PM | #16 |
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Re: End play adjustment screw
Just like I thought, my stubby's longer than yours is. Mine's 6" long. I forgot that I have that offset screwdriver, I'll have to try that.
I have the Mechanics Handbook and a bunch of other's but this is a well used piece. |
08-08-2013, 01:17 PM | #17 |
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Re: End play adjustment screw
Hehehhe, it always comes down to something being bigger than someone else's, Hehehehe.
If the steering is working OK with the 2" of free-play, I wouldn't worry about it until the book comes. |
08-08-2013, 01:38 PM | #18 |
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Re: End play adjustment screw
Don't hog down the adjustment, just snug it to where there is no side thrust.
Just finished doing that particular thing to a very loose shaft and when we took off the fill plug, voila, no lubrication. Bob |
08-08-2013, 01:55 PM | #19 | |
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Re: End play adjustment screw
Quote:
So... Politely asking for help here is no longer acceptable? I just thought that if the adjustment of the 2-tooth box were posted here, it might help a lot of people who look this up and find this thread someday. My apologies for suggesting such an absurd idea. The answer "Go buy the book" may help answer the question a lot of people here have about why younger people aren't getting interested in old cars as a hobby these days. I think I will add this attitude to the "pet peeves" thread. |
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08-08-2013, 02:18 PM | #20 |
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Re: End play adjustment screw
There is one more "end play adjustment" on the steering. On the 7 tooth, you can remove shims if you can push & pull the steering wheel and feel movement. On the 2 tooth you loosen the clamp for the column to the gear, then loosen the lock nut, then lightly snug the slotted screw to drive the upper bearing race closer to the bottom.
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08-08-2013, 02:56 PM | #21 | |
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Re: End play adjustment screw
Quote:
Actually, the adjustment procedure has been posted here a couple times [ once by me] so it might still be able to be found in search or archives. Last edited by Patrick L.; 08-08-2013 at 04:09 PM. |
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08-08-2013, 03:55 PM | #22 |
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Re: End play adjustment screw
Owning Model A's for years, I find that the Service Manules and Les Andrew's books are "must" to have.
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08-08-2013, 04:19 PM | #23 | ||
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Re: End play adjustment screw
Quote:
Quote:
To scan and post these publications on this or any other internet site would be ethically "stealing" from the publishers of said books, nevermind that it would probably be a copyright violation as well.
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08-08-2013, 04:22 PM | #24 | |
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Re: End play adjustment screw
Quote:
Hmmm, good point Carl. |
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08-08-2013, 06:23 PM | #25 |
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Re: End play adjustment screw
I second the recommendation to purchase a copy of the service bulletins. In the interim, takea look at post #6 by Mike V. Florida on 5-16-2013 to the "steering box adj" thread for information on the adjustments.
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08-08-2013, 09:51 PM | #26 | |
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Re: End play adjustment screw
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Quote:
Nope, I sure didn't mean to come off rude or disrespectful in any way. I thought the request was made in a kind manner. I already know how to make the adjustments myself, just was hoping to get it out here for the sake of others now and in the future who find this information by searching the forums. Carl- Excellent point. Please disregard my previous request. |
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08-09-2013, 10:40 AM | #27 |
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Re: End play adjustment screw
There are three adjustments to be made but 4 things need to be played with for those adjustments.
1. End play of steering shaft. 2. End play of the steering sector. 3. Alignment of the sector gear teeth in worm gear 1. End play of steering shaft. The bolt on the top of the steering box above the oil fill. 2. End play of the steering sector. The thrust screw and jam nut on the side of the housing oposide side of the piman arm (near engine). 3. Alignment of the sector gear teeth in worm gear. Two places; a) The eccentric sleeve jam nut on the pitman arm side, top, b) The eccentric rivet on the pitman arm side bottom of steering box. This is not a step by step procedure but rather what needs to be done and how it affects the steering.
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08-09-2013, 10:44 AM | #28 |
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Re: End play adjustment screw
I know I forever destroyed any credibility I ever had on the barn, but I want to throw a word of caution on adjusting the worm end play on a 2-toothe. I have seen very few worms that do not have pitting on their tapered end bearing races. I don't think the pitting is caused by rust in most cases, because it's on both ends when there's no evidence of rust anywhere else. I think it's from repeatedly over tightening the thrust adjustment. The thrust force generated from steering the car could never put enough thrust pressure on the tapered end bearings to hurt them. The recommended way to check the thrust adjustment on the worm is by pulling and pushing on the steering wheel. I think the adjustment should be just tight enough to take out that play and it is easy to over tighten because you can't feel the fit at the adjustor. I don't think it needs pre-load. Since the adjustor is right on top and accessible, well-meaning people seem to think it needs to be cranked on or tightened frequently. 'Just my observation.
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08-09-2013, 11:09 AM | #29 |
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Re: End play adjustment screw
[QUOTE=Ross/ I have about 2" of play at the steering wheel.[/QUOTE]
My thought is that "just" 2" of play is about right. If play at the wheel gets to about 1/8 of a turn, you might have a problem, but I've seen a lot of A's with that much and more. Didn't say I'd want to drive them very fast, though... Fearless |
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