a 'Nut and Bolt' restoration. A how to guide.

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DonMuscles

Well-Known Forum User
Even worse.

Look at the shape of the stock (nylon) bushes, and the aftermarket brass/phosphor bronze versions. Your one-piece bush doesn't replicate their function because it is not shouldered. The shoulders are vital to the function.

You literally sound like you have no knowledge of engineering whatsoever.....

[emoji19][emoji23][emoji23][emoji23][emoji23][emoji23][emoji23].


My bush eliminates side movement!

It actually does a better job than a nylon bush would!

It is a tight snug fit in the hole....
 
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Pete

Well-Known Forum User
You literally sound like you have no knowledge of engineering whatsoever.....

[emoji19][emoji23][emoji23][emoji23][emoji23][emoji23][emoji23].


My bush eliminates side movement!

It actually does a better job than a nylon bush would!

It is a tight snug fit in the hole....

Yeah, I get to agree with Albrecht. That bush is only really suitable as a temporary 'get by' solution. The quote above is bollocks.
 
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Albrecht

Well-Known Forum User
Ignoring all the other old cobblers you just wrote...

Whether you think I "have no idea" is pretty much irrelevant with regard to the stock shifter bushings. The point is that the people at Nissan who designed and manufactured the thing in the first place probably knew what they were doing.

My money's on them, not on you.
 
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nospark

Well-Known Forum User
Don,
What brand of steering wheel is that fitted on your car? What diameter ? Needs a boss ?
(I havn't the stamina to search the entire 110 pages of this thread to see if it's mentioned)

Well done on sticking with the project and seeing it through. Nice colour.
 

Rob Gaskin

Treasurer
Staff member
Site Administrator
Don,
What brand of steering wheel is that fitted on your car? What diameter ? Needs a boss ?
(I havn't the stamina to search the entire 110 pages of this thread to see if it's mentioned)

Well done on sticking with the project and seeing it through. Nice colour.

If you use the search function and search on Don Muscles with 'Steering Wheel' you get this:

Aftermarket italian 4-spoke wooden steering wheel (slight split on one side of the rim - repairable) with nissan horn button.
 

nospark

Well-Known Forum User
Thanks for the search tip Rob. The steering wheel i am looking at is black 3 spoke as shown in the photo posted last Sunday (24th)
 
You literally sound like you have no knowledge of engineering whatsoever.....

[emoji19][emoji23][emoji23][emoji23][emoji23][emoji23][emoji23].


My bush eliminates side movement!

It actually does a better job than a nylon bush would!

It is a tight snug fit in the hole....

Oh dear.
 
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Pete

Well-Known Forum User
Ignoring all the other old cobblers you just wrote...

Whether you think I "have no idea" is pretty much irrelevant with regard to the stock shifter bushings. The point is that the people at Nissan who designed and manufactured the thing in the first place probably knew what they were doing.

My money's on them, not on you.
Some interesting stuff here, ignoring the mud slinging, the 'people at Nissan....' bit is of course correct, however, that mechanism was also designed to a price, we're 50 years down the road, lot's of different materials and technologies available now( although I guess using plastic bushings in that area 50 years ago was quite innovative). So I guess, today, that very simple mechanism could be changed and improved, given no cost restrictions, without in any way denigrating the original design(ers). Don has, in this case, failed to do that.
 

Rob Gaskin

Treasurer
Staff member
Site Administrator
We are all different. Don and Albrecht are miles apart so why try to agree. That gear lever 'fix' will improve the change greatly!

Albrecht would have corrected it with the nylon bushings yes but if Don is happy, why stress.

Realise that you are different and accept it.

There is room for both in this world, it's not harming anyone and we are enjoying ourselves aren't we? There are so many people in this world that would pray for the day they have to worry about gear lever bushing.

Let's consider ourselves lucky.
 

DonMuscles

Well-Known Forum User
Thanks for the search tip Rob. The steering wheel i am looking at is black 3 spoke as shown in the photo posted last Sunday (24th)

Lol.


The steering wheel is a brand new, old stock 1970’s period ASTRALI steering wheel!

I got lucky on ebay when it come up for sale!

:).

Also I made the hub adapter ring to fit it to the boss that was on the car as it had a larger pcd than standard.

I then sourced a “Z” badge the correct size for the centre of the horn button, and matched it to the gearknob.

:).

I hope this helps.

Also albrecht, Nissan also had a cost involved when they made the bushes 40/50 years ago. I dont suppose you know the design engineer do you????

Lmfao!!!!
 
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Albrecht

Well-Known Forum User
We are all different. Don and Albrecht are miles apart so why try to agree. That gear lever 'fix' will improve the change greatly!

Albrecht would have corrected it with the nylon bushings yes but if Don is happy, why stress.

Realise that you are different and accept it.

There is room for both in this world, it's not harming anyone and we are enjoying ourselves aren't we? There are so many people in this world that would pray for the day they have to worry about gear lever bushing.

Let's consider ourselves lucky.

Sorry Rob, you are just encouraging bad practice. Talk of "engineered down to a price" on shifter bushings that in many cases have lasted 30+ years before failure is total nonsense. Nissan simply didn't skimp on that kind of thing, and that's one of the very reasons the cars have a good reputation for mechanical longevity in comparison with other marques of the period (especially British stuff).

By all means replace them with brass/phosphor bronze for a more sporty feel (the originals were designed to absorb vibration and give a little damping effect) but you have to replicate the shape, as per the aftermarket example I provided. If you don't replicate the shape then you are not replicating the full function. You do actually understand the full function, don't you? If you think a simple straight bushing with no shoulders is a good solution then you might want to refresh your memory of how the shifter actually moves in dynamic operation, and what's touching what.
 

Albrecht

Well-Known Forum User
It is a press fit.

What do you not get?

And brass is stiffer than nylon.

Next???

OK, here's a question for you. If your 'solution' is correct and effective (and - important this - is going to last...) then perhaps others have come to the same conclusion. Maybe they even sell them? Got any examples of that? I'm all ears.

Here's a photo of an NOS B-type 'Striking Guide'. Notice that both the inner and outer faces of the ears on the guide are machined, and machined to size. Your straight, unshouldered bushing ignores that. If Nissan were so interested in saving money on such things, and it really didn't matter (so a rough-cast, unmachined finish would suffice) then why would they have machined it - parallel - and to size?



At some point the penny will drop. In your case it will most likely be when you are sitting on the hard shoulder, waiting for the recovery truck, with a broken shifter in your hand...
 

Pete

Well-Known Forum User
Sorry Rob, you are just encouraging bad practice. Talk of "engineered down to a price" on shifter bushings that in many cases have lasted 30+ years before failure is total nonsense. Nissan simply didn't skimp on that kind of thing, and that's one of the very reasons the cars have a good reputation for mechanical longevity in comparison with other marques of the period (especially British stuff).

By all means replace them with brass/phosphor bronze for a more sporty feel (the originals were designed to absorb vibration and give a little damping effect) but you have to replicate the shape, as per the aftermarket example I provided. If you don't replicate the shape then you are not replicating the full function. You do actually understand the full function, don't you? If you think a simple straight bushing with no shoulders is a good solution then you might want to refresh your memory of how the shifter actually moves in dynamic operation, and what's touching what.
Garbage, everything is' engineered to a price'(I removed the down if it offends). Otherwise, for instance, we'd be driving around in cars with gold electrical connectors.How long do you think Dons fix will last 100 miles, 1000 miles, 10,000 miles. I won't suggest 100,00 miles. Nice bit of backtracking re the link to the non 'Nissan spec', metal bushes. If I really wanted to get arsey about it the link you gave does not mention the grade of 'brass' used which ranges from shit to bearing grade or the tolerances which range from 'someone knocked it up in his garage' to machined on CNC to +/- whatever they're capable of. Then there's surface finishes.....
Oh God the subcontract manufacturing terrors are coming back, 'why doesn't it work, lets get a better material and tighten the tolerances and improve the surface finish', yeah we can do that but it'll cost a million billion pounds, why don't you just go back and design it fcking properly.
 
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Albrecht

Well-Known Forum User
Garbage, everything is' engineered to a price'(I removed the down if it offends). Otherwise, for instance, we'd be driving around in cars with gold electrical connectors.How long do you think Dons fix will last 100 miles, 1000 miles, 10,000 miles. I won't suggest 100,00 miles. Nice bit of backtracking re the link to the non 'Nissan spec', metal bushes.

"Garbage"? I think you're looking at the wrong posts.

You know what I'm talking about. Of course everything is engineered to a price. The key point is that is needs to work too. Any engineer knows that, and Nissan didn't skimp on these shifter bushings in a way that would - as you are implying - compromise their function.

What "backtracking"? I posted a link to aftermarket brass bushings - by way of example - way back in this exchange and now you think that's somehow "backtracking"? Hard to take you seriously when you spout stuff like this. Who is saying that only the original material will do? I've used phosphor bronze bushes in the B-type shifters and alloy cones in the A-type shifters myself, and they work well. The point is not the material, it's the shape.

If a single, straight, non-shouldered bushing was a good 'upgrade' for the B-type shifter mechanism then - I reckon, but you probably won't - that it might have been come up with elsewhere before now. So I'll ask you straight - can YOU provide any evidence of that? Any vendors? Any home-made users apart from Tonto over here? Like I said, I'm all ears.
 

DonMuscles

Well-Known Forum User
Right.....

I think you are actually missing the Point entirely!

As I have mentioned before the brass bush in the shift lever is a press fit!!!!

It takes some force in a vice/press to put in into place, and subsequently to move it , you would also need to use a vice/press, and press it out!

This would require direct lateral force!!!!


The shifter on the other hand in operations does not exert direct lateral force on the bush, but angular.... Not only do I not need to explain to you the mechanics of the loss of efficiency of a force acting at an angle, but also lets not ignore the fact that the shift motion of angular force exterted on the bush is so small it is negligable in comparison to the direct lateral force that would be required to dislodge it!!!!!!!!

Ffs!!!!


If I has made the bush as a loose fitting piece of junk, then I would agree that it would require shoulders either side!

But since I have also made the bushing a snug/tight fit into the gearbox linkage arm, there is no need for the shoulder......

I have said my part.
 
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Pete

Well-Known Forum User
"Garbage"? I think you're looking at the wrong posts.

You know what I'm talking about. Of course everything is engineered to a price. The key point is that is needs to work too. Any engineer knows that, and Nissan didn't skimp on these shifter bushings in a way that would - as you are implying - compromise their function.

What "backtracking"? I posted a link to aftermarket brass bushings - by way of example - way back in this exchange and now you think that's somehow "backtracking"? Hard to take you seriously when you spout stuff like this. Who is saying that only the original material will do? I've used phosphor bronze bushes in the B-type shifters and alloy cones in the A-type shifters myself, and they work well. The point is not the material, it's the shape.
Whoah.

1. as you are implying compromise their function. -----------I'm not and I didn't.
2.way back in this exchange-.'------------------------------------It wasn't way back.' 15 posts ago and all very recently.
3.What "backtracking"? I posted a link to aftermarket brass bushings - ---------------------------------------------You implied by your post these would be a an option, no material , tolerance, or surface finish spec nothing, they could be garbage.
4. If a single, straight, non-shouldered bushing was a good 'upgrade' for the B-type shifter mechanism then - I reckon, but you probably won't - that it might have been come up with elsewhere before now. So I'll ask you straight - can YOU provide any evidence of that? Any vendors? Any home-made users apart from Tonto over here?-------------------------My quote re Dons design," So I guess, today, that very simple mechanism could be changed and improved, given no cost restrictions, without in any way denigrating the original design(ers). Don has, in this case, failed to do that."

I'm really a bit miffed that you are trying and failing to misrepresent what I have said. By by the way, naysayer still doesn't have a hyphen.
 
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