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Post by neil55 on Jul 1, 2019 19:50:55 GMT
hi all,
i have developed a sloppy select lever in my automatic bw35 box. i am going to order a spherical bush, is there anything else i need to replace or look out for , or is it a really simple easy task !! any help or tips will be appreciated, thanks neil.
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Post by richardlamsdale on Jul 1, 2019 21:14:55 GMT
If the lever is sloppy (moves side to side a lot) then it could be a worn spherical seat. It could also just be the bolts holding the lever mechanism to the tunnel are loose, or the pin that goes into the ball (that sits in the spherical seat) is loose. If the general gear selection is sloppy then it could be that the ball-joints at the ends of the actuator rods are worn, or the compensating mechanism (bolted to the gearbox) is worn. I reconditioned the whole gear lever / compensator / selector rods last year, as some of the ball joints and the compensating mechanism were seized.
If you take the rods off, try to avoid adjusting their lengths - they need to be set to a certain length, but the manual has the wrong lengths (the correct ones are on here somewhere if you do need them).
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Post by harvey on Jul 2, 2019 16:34:34 GMT
or the compensating mechanism (bolted to the gearbox) is worn. Or loose. Remember there are two different types of spherical seat, according to which type of gearlever assembly is fitted. |
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Post by neil55 on Jul 2, 2019 18:28:38 GMT
i am going to order a spherical bush and a pin from j r wadhams, i wonder if that would do, or strip it down and find out i suppose?  |
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Post by Brendan69 on Jul 2, 2019 18:43:31 GMT
I may also try this method on my olde girl as she has been a tad loose too these last few years. LOL, take up some slack should do the trick no end. LOL
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Post by harvey on Jul 2, 2019 18:58:43 GMT
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Post by neil55 on Jul 3, 2019 6:46:48 GMT
ah ! ok i i clicked the link with the exploded view of the box and that now gives me the information and idea of whats it about,
"its good to be a member of a supportive team"
thankyou all for your help , neil
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Post by Deleted on Mar 14, 2020 11:52:10 GMT
I know this is an old post but I couldn't get the links to work.
I need on of these bushes,I have seen adverts on ebay that say there aren't two types and that there unit fits either,but I don't believe them.
I'm not sure which type I need,my rover had no brush or sliding plate on the gear lever,I made a sliding plate but am not sure if its the early or late type lever.
Can anyone advise what the differences are?. I believer the ball is a different size but have no idea of the relevant measurements.
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Post by neil55 on Mar 14, 2020 12:31:40 GMT
hi
i replaced mine and sourced through j r wadhams, give the year of the car because there are 2 types. also order a small pin which holds it all in, all done from underneath the car but a bit fiddly, 3bolts only. no need to take the tunnel out or off. good luck .
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Post by Deleted on Mar 15, 2020 10:04:36 GMT
Thanks for the reply. I know the engine and probably the box have been changed at some time in my cars life so I still need to be able to identify if the lever is the early or late type.
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Post by Brendan69 on Mar 15, 2020 10:30:34 GMT
The early cars 67-70 had a round knob on top of the lever and the later cars 70-73 had the slightly off rounded shape knob on top.
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Post by harvey on Mar 15, 2020 14:24:58 GMT
The early cars 67-70 had a round knob on top of the lever and the later cars 70-73 had the slightly off rounded shape knob on top. You can't identify which type of gearlever housing you have just from the gearknob though, as the round knobs were changed to the later type for a reason regardless of the selector type. |
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Post by Deleted on Mar 16, 2020 11:47:44 GMT
The early cars 67-70 had a round knob on top of the lever and the later cars 70-73 had the slightly off rounded shape knob on top. You can't identify which type of gearlever housing you have just from the gearknob though, as the round knobs were changed to the later type for a reason regardless of the selector type. So,to somewhat misquote one of my heros, "I am none the wiser but maybe better informed". |
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Post by Deleted on Mar 18, 2020 8:33:02 GMT
Ive now removed the old bush and 'repaired' it with plasticine so that I can use it to make a mould and cast a replacement in either resin or aluminium.
I see the postings on ebay that say the bushes fit either lever despite the ball size being different are still running,"A little knowledge is a dangerous thing".
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Post by lloydgm on Mar 20, 2024 7:36:31 GMT
I had a sloppy gear change in my 1968 P5B 3.5 L V8 Coupe., until the spherical bush supporting the ball in the gear change lever suddenly disintegrated and fell through the floorboards so to speak.
I have exposed the mechanism from inside the car and removed the three from the retaining cap for the spherical bush from under the car.
I have obtained a replacement bush from Wadhams listing my model, although they only list one which is flexile plastic.
I note from posting on the forum that there are two sizes of locating holes for the pin into the ball of the lever.
The bush supplied had a 5/32" hole, whereas my pin is 3/16' diameter.
I have opened the pole in the bush supplied to provide a firm fit for my pin. The pivot being between the the short length of the pin within the bush. (This seem odd considering the otherwise relatively robust design of the gear change mechanism).
The Forum mentions that there two types of spherical bushes.
Could any member assist with answers to the following questions:-
1. Does the spherical cavity differ in the two types mentioned. If so how do I know whether I have the correct type?
2. What technique is used to force the lever's ball into the flexible bush?
Both upper and lower ends of the bush are tapered to presumable allow the ball to enter from either face.
It will require some force. It could be drawn using the "Retaining Cap "had its three captive screws been longer.
I could fabricate a cap and use screws of sufficient length and use this method to draw the bush over the top of the lever's ball.
Alternatively. to disconnect the lever from the linkage, which I was hoping to avoid, and use a press .
Is there a simpler method ( e.g., warm with heat gun ?)
3. Lubrication will be required between the pin and hole in the metal ball but s lubrication recommended between the ball and the plastic spherical bush? If so what.type? (Graphite Grease, Castrol APXT). Note A hardened black deposit which needed scraping off covered large sections of the ball when removed. It has not been serviced as I have had the car most of its long life.
Addition: Just after submitting the above post I found a video via Google, from a P5B owner of a similar model to mine, replacing the spherical bush. He confirmed that there are two bushes. The video shows the ball being ball being pushed into the bush by hand.
I have obviously have been sold the wrong size bush. It is surprising that there was no mention of this on the suppliers website which listed only one bush.
The diameter of the ball (with a 3/16' hole for "Locating Pin") on the end of the gear change lever on my 1968 P5B coupe, is 1 3/8'.
I am still interested to know whether lubrication should be used on the ball to spherical bush contact surfaces.
I now have to find a supplier of the correct Bush.
Lloyd
01.04.24 Both Wadhams say there is only one part number and one bush. Parts of London say the same.
The bush supplied by Wadhams is quite rigid plastic. Not like the quite flexible one seen in a video on U Tube of a replacement bush being fitted to what looks similar to my 1968 P5B model.
The ball on gear change lever will not enter from either face of the bush, even with considerable force applied to the lever.
Hence I still need help to secure the correct spherical bush.
Lloyd
04.04.24 PROBLEM. SOLVED. I put the heat gun on the rigid bush supplied by Wadhams, plastic became pliable and the ball on the gear lever pushed in with ease. Surprise that there was no mention from my query to the suppliers, nor P5 members that this was the procedure. What confused me was the comments in the Forum that there were two bushes. Perhaps thee but I only discovered in my search soft (were available) and rigid, with either 1/8"or 5/32' diameter hole for the locating pin. Also, I only discovered one Part No. 571933.
Lloyd
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