Tack för alla svar.
michaelth: den produkten jag länkade till är en 'rip off' alldeles för dyrt men bra. Den som svarvar några stycken i Sverige kan få de sålda snabbt menar jag. jag har inte måtten.
HenrikL: bussningen som tillverkas i plast idag är av undermålig kvalité, så längre livslängd är det som efterlyses. Och den måste smörjas ofta såklart om den ska hålla. Den i brons är "självsmörjande" men för att kunna smörja krävs att den slits, så du har rätt inte bra om bussningen blir dåligt smord.
Mogge: menar du att det är svår att få växelföraren i bussningen?
jag fick det här svaret idag på The Samba. Priset är oförsvarligt:
https://www.thesamba.com/vw/forum/viewt … p?t=685654
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There are two issues.....one positive and one negative.
First....a statement of the facts....the bronze bushing will NOT last forever. The fact that they made it oit of oil-lite bronze sealed that fate.....but it WILL be accurate and last a long time.
The proper material for the smoothest shifting is an engineering plastic like they made the originals out of (i.e. UHMW, filled nylon of the proper alloy or filled high density polypropylene).
1. In the positive direction.....the reason why a "metal" bushing has merit is because the material quality of the plastic bushings that are currently available.....is all over the place.
Eons ago....early to mid 70s and earlier....these were made of nylon and were fairly hard when new...whitish in color.....and turned yellow with age and cracked all over the place when old.....but were tough and accurate. This aging issue is because back in the day they used Nylon 6....wrong material for the grease used and it absorbs water.
. Nylon 6.6 and nylon 12 ...the correct materials.....were used for a short while but at the same time you started seeing UHMW coming on line.
That was perfect....slicker than nylon and tougher but a little more flexible.....and cheaper. Milky white in color. But not as accurate in molding so it the rattled around in the bore and wore out from its own fit issues.
Cut to today.....made in the third world....the molding is all over the place and the material ranges from poorly made HDPE.....barely adequate in hardness.....to LDPE....totally wrong material. People are tired of the issue.
A "metal" bushing would seem to fix all of this.....and it can be made on a lathe.....no expensive injection mold needed.
2. The negative.....oil-lite bronze is designed to wear. Its a wear part because its lubrication mechanism REQUIRES that it wears metal away to expose the oil that is molded into it.
Its not really a long term material....and certainly not worth what they are charging for it.
They should have used a high strength brass. Its more dimensionally accurate, harder thwn bronze but still softer than the steel shift rod.
This part requires owner due diligence due to its location. You have to occasionaly lube this part whether its made of metal or plastic. The only reason people select an oil-lite bronze for any part is because they in their mind....are trying to say its now maintenance free because its self lubricating. Its why their add says...."install it and forget it".
However to be self lubricating.....it has to wear.
The really good thing.....it has a lifetime warranty. Question is.....if it craps out....do you have to wait for it to ship to them....be inspected to see if it meets warranty...and then wait for another to ship to you?
If it were just say....double or triple the cost of a stock bushing.....it would be a no brainer. Just buy it.
But at $57.45 each?
They could have made a "REAL better and forever part....simply by using nylon 12 bar stock filled with 25% glass and a portion of molybdenum disulphide. Slick as snot, hard as a rock.....easy to machine ....and truly will last for longer than you own your car......and its cheap.
Its commercially called "Nylatron"....and is bushing material made just for this type of application.
If you wanted to be exotic and have the bushing be worth $57......they should have used Torlon 4301 plastic. Good to 600F constant.....as hard as a rock.....chemically inert up to nitric acid.....graphite filled and only a few percentage points less slick than Teflon.
A Torlon bushing would last about a century. Of course.....its $300 a foot for a 1.5" diameter rod.
Ray
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Money talks! Mine always says: "Goodbye"!
Ich versuchte mal genormt zu sein. Das waren die schlimmsten zwei Minuten meines Lebens.
Tra il dire e il fare c'è di mezzo il mare.
1965* 21W Samba (MCode 430 114) - 51 BD Standard Microbus (Type 22A. M62) - 1967 Westfalia pop-top (SÅLD)
* 1965 enligt chassinummer. Reggad som 1964 - │o\w/o│
