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peterld

Hi Guys - Anybody know of anywhere/anyone who might stock Little End Bushes p/n 059 105 431 for the 924/931 con rod?
I have obviously tried all the usual suspects such as EBS, Paragon, Auto.Az, etc. Is there somebody else I should be trying?
Cheers Pete

emoore924 · Joined: 13 Apr 2004 Posts: 2822

About 3-4 years ago a porsche master mechanic friend handed me a set and said "Hang onto these, they're getting hard to find..." which was code for: Porsche was going to stop making them available...

I believe they're NLA. If you find someone with a NOS set sitting on a shelf, buy the set, or maybe two because they're getting hard to find...

peterld · Posted: Wed Jul 01, 2009 7:41 am Post subject:

Yup! NLA! Wanna sell your set? Or two or three?
Geez this is getting to be a real pain in the a...

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

I've had them made. Not for stock 24mm wrist pins but for 22mm pins to use VW flat top pistons... Cost me around 50usd for all four and get them installed.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
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peterld · Posted: Wed Jul 01, 2009 10:04 pm Post subject:

Hi Raceboy - made from what? Did you use bronze or brass?

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Yeah, I can't imagine these bushes being that big of a deal...seems like it should be pretty easy to have a reasonably equipped machine shop turn some out on a lathe...

...I hadn't encountered this yet because my Crower rods have integral bushes. At the moment, I am leaning toward stock rods with clearanced block on the post-UWB stroker that is in the works, so I will need these eventually.

Pete, I'm sure you can find a machine shop there to do the work, but if you guys want, I can certainly look into having some made up over here. Or maybe min could do some on his lathe? Or maybe there's an interchange available somewhere? What are the specs on the bush, anyone know?
_________________
erstwhile owner of just about every 924 variant ever made

El Chato · Joined: 22 Aug 2006 Posts: 205 Location: El Paso, TX

this is one more part that I have no idea what it is, but i keep reading to learn more,
_________________
1979 924 N/A, Snail Shell
1980 924 N/A
1976 924 N/A

It may be that your whole purpose in life is simply to serve as a warning to others.

Today's weirdness is tomorrow's reason why.

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

_________________
erstwhile owner of just about every 924 variant ever made

El Chato · Joined: 22 Aug 2006 Posts: 205 Location: El Paso, TX

thanks Ideola, preciate it
_________________
1979 924 N/A, Snail Shell
1980 924 N/A
1976 924 N/A

It may be that your whole purpose in life is simply to serve as a warning to others.

Today's weirdness is tomorrow's reason why.

peterld · Posted: Sat Jul 04, 2009 11:32 am Post subject:

OK guys, I've finally got some measurements. Width of little end of con rod is 28mm. Internal diameter is 24mm ie. wrist pin contact area. While the external diameter is 27.5mm. The guy who took the measurements says the bush appears to be made from steel!!! Can anyone who has a con rod handy confirm what the bushing material is made from. On such a vital part, given I'm going to have to find someone to make something up, I certainly don't want to stuff up. Thanks Pete

Min · Posted: Sat Jul 04, 2009 4:22 pm Post subject:

Aluminum bronze is a common material for this part.

Min
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.

fox 20_12 · Posted: Sat Jul 04, 2009 10:30 pm Post subject:

It's definitely not steel, it's a bronze alloy. Your machine shop will have this material in stock.
_________________
Teaching my son that there is just as much fun knowing how your car works as there is driving it.

1981 931

gegge · Joined: 27 Jul 2007 Posts: 1124 Location: Sweden

According to Kolbenschmidt it is actually made of sintered copper lead on steel base
_________________
Carl Fredrik Torkildsen

924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs

daniel · Joined: 18 Jun 2009 Posts: 686 Location: Sydney, Australia

gegge · Joined: 27 Jul 2007 Posts: 1124 Location: Sweden

The small end bushing:

https://infopart.org/audi-059105431-part

Manufacturer AUDI
Number 059 105 431
KOLBENSCHMIDT 74254690
Description Small End Bushing, connecting rod
Available Undersizes SEMI
To shaft diameter [mm] 24
For housing diameter from [mm] 27
To housing diameter [mm] 27.021
Width 1 [mm] 27,8
Supplementary Article/Supplementary Info 2 Sintered copper lead on steel base
Cross numbers AE GS399SASEMI
AE S4646LSEMI
AUDI 059105431
GLYCO 552527SEMI
_________________
Carl Fredrik Torkildsen

924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs