911 Advice

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Troppo
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911 Advice

Post by Troppo » Fri 09 May, 2008 12:19 pm

Hi all. I have been in the market for a 4wd 911 for a while and have found one on auction in Kununurra, which is not too far from me. The auctioneer said that a pipe has been removed and now the rear brakes are locked on/won't air up. He said it was some sort of air hose.
Would this be an easy thing to repair?
If it isn't a major job I was planning to ride my motorbike to Kununurra, fix it, then drive it back to Broome with my motorbike on the back. I just don't want to ride all the way there and find out I need some sort of special part or something that has to be flown in from the moon. (And riding one way is enough, I don't think I could manage having to ride back again, my bum couldn't handle it!)
So if anyone has knowledge of what this could be and how it would be repaired, I would appreciate your advice. (Tony?)
In case anyone is interested the truck is a '86 model, 106,000 on the clock, ex diamond mine, flat tray, turbo. Someone has painted "steptoe & son" on the side...

Cheers,
1962 Mercedes Benz 220Sb Fintail
http://www.broomevideo.com

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Hendrik
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Re: 911 Advice

Post by Hendrik » Fri 09 May, 2008 12:59 pm

Depends, most air brake system have an over ride function, whereby you can undo the park brakes to keep going in an emergency.
Also most air system use a pretty universal fittings system, so you may be able to temporarily replace the air hose with another one.
Depends on what the set up is, I dare say the main brakes are air over hydraulic and the park brake is fully air. Sure you can undo the park brake (if it is similar to a Unimog set up you have to use a hammer to knock the brakes off) then they have to be disassembled and re set.
However the problem is if air is pouring out due to a missing pipe then you won;t be able to build up air to activate the main brakes. The good side of this is that you may well pick it up cheap because it has a fault or two.

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Tony From West Oz
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Re: 911 Advice

Post by Tony From West Oz » Fri 09 May, 2008 11:25 pm

TRoppo,
I was only the driver of the 911, I did not own it or service it, so I knew nothing much about it mechanically.

As already advised, it is possible to buy fittings to replace most air line parts. Nylon air line is cheap and compression fittings and adaptors are available to most threads (in Perth at least), so repai9ring a removed air line should not be an issue. My concern is that the air compressor (possibly separate from block, but I have heard od engines where the air compressor runs from the crankshaft) may not be servicable. If you can check out the air compressor - air flowing from the engine end of the place the air pipe is missing from, you should be able to get enough air to drive it.

Have you got any heavy vehicle mecahnic friends to check it out with you?

Regards,
Tony
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

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Troppo
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Joined: Thu 22 Dec, 2005 4:25 pm
Model you own: w901-905
Location: Broome

Re: 911 Advice

Post by Troppo » Mon 12 May, 2008 12:36 pm

Thanks for your reply. It's a bit hard because I have to drive 1000km to see it. I'd hate to drive that far to find out it's stuffed. I do have some mechanic mates, and they said pretty much the same as you guys. Maybe I'll risk it, kind of makes life more exciting in a way.
Cheers for your advice :)

PS. Tony, I'm enjoying reading the SVO forums where I see you are contributing. When I finally find my 911 It is my intention to run on SVO. Have you heard anything about a OM352A engine running SVO?
1962 Mercedes Benz 220Sb Fintail
http://www.broomevideo.com

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Tony From West Oz
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Re: 911 Advice

Post by Tony From West Oz » Wed 14 May, 2008 12:09 am

Troppo,
No I haven't, but it is just a bigger OM than my OM617 and it uses the same make of IP, so I see no major issues with the conversion.
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

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