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PostPosted: Sat Feb 08, 2020 8:55 pm 
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Car Models: 900 turbo aero / 99 Turbo
I have managed to strip the threads on the brass union connecting the brake pipes ( adjacent to the brake servo) The one that brings the brake pipes from the interior into the engine compartment.
Can anyone supply one?
Thanks.


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PostPosted: Sun Feb 09, 2020 10:04 am 
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Heli coil kit off the Bay?


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PostPosted: Sun Feb 09, 2020 1:54 pm 
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Car Models: 900 turbo aero / 99 Turbo
Thanks, didn't think of that.
Any idea what the thread is?


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PostPosted: Sun Feb 09, 2020 2:50 pm 
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Moved to Classics, as it would appear this topic is now heading in a workshop direction.

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PostPosted: Sun Feb 09, 2020 9:02 pm 
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Robert, I can't remember what year your 99 is but if it's part 11 in this diagram then it seems the same part was used on all Classic 900s without ABS. It isn't available new but there must be loads sitting around in scrap 900s. That might be easier than faffing around trying to repair your original part and probably cheaper too.

If it is the one used in the 900 then I can guarantee it wil be M10 x 1.0mm.
If your car is pre-'74 then it is likely a different part (I wasn't able to check) as some (all?) of the unions on those were imperial.

Attachment:
900_brake_pipe_block.jpg
900_brake_pipe_block.jpg [ 61.58 KiB | Viewed 1036 times ]

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PostPosted: Sun Feb 09, 2020 9:30 pm 
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Car Models: 900 turbo aero / 99 Turbo
Thanks Bill,
It's a 1980 99T and that is exactly the part. I would guess (hope)that it is fairly generic to that era.
Thanks for the info.


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PostPosted: Sun Feb 09, 2020 9:39 pm 
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In that case, it is the same as all Classic 900s without ABS. The part number is 8928947 but that may not help much since it is no longer available new. It might identify it to a Saab specialist breaker, since they will be able to look up the diagram and pinpoint the part in their stock.

I wouldn't expect it to be a generic part. I don't remember seeing that exact part on any other make of car, although there will be similar parts, of course.

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PostPosted: Mon Feb 10, 2020 8:41 am 
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Another thought - it's basically two T-connectors joined together so if you bought two Ts and found a way to mount them both together then that would solve the problem. I'd be much more confident doing that than trying to repair the original.

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PostPosted: Mon Feb 10, 2020 11:00 am 
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Location: Cleveland North East
Car Models: 99T
Robert

the brass casting is too thin to take helicoil imho

what part of the world are you ?

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PostPosted: Mon Feb 10, 2020 12:01 pm 
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Car Models: 900 turbo aero / 99 Turbo
Bill,
Thanks again, that's a good solution if I can't get the origional component. I have been trying to keep to stock specifications throughout this restoration.
Robert.


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PostPosted: Mon Feb 10, 2020 12:09 pm 
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Car Models: 900 turbo aero / 99 Turbo
Robschoice,
Yes, as I have found out the brass is fairly fragile.
I am just outside Glasgow.
Robert


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PostPosted: Mon Feb 10, 2020 1:08 pm 
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Joined: Tue Oct 29, 2019 11:21 am
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Car Models: 99
I have several new originals 8928947


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Inlet nipple 8928947.png
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PostPosted: Mon Feb 10, 2020 4:47 pm 
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Hi Robert, My 90 should have this part, will check for you on Saturday.

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PostPosted: Mon Feb 10, 2020 5:03 pm 
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I have found one in the garage, so looks like you have plenty of options :park:

btw the thread is a parallel so very importantant to get the brake pipes lined up so the male nipple can freely [ within reason] run down into the Tee union

It shouldnt feel that tight, ie as tight as when you are stripping threads off, if you follow my drift

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PostPosted: Tue Feb 11, 2020 5:31 pm 
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Location: Scotland
Car Models: 900
Are they not just 2 standard pipe connectors cast into one?
Obviously you have options already offered above

https://www.ebay.co.uk/i/311993482849?c ... gJBiPD_BwE


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PostPosted: Tue Feb 11, 2020 5:42 pm 
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It's effectively two 3-way connectors cast in one.

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PostPosted: Tue Feb 11, 2020 5:48 pm 
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Car Models: 900
I have just reread and yes obviously it's 2 tees, Shall blame it on my headache :oops:
As said pr of tees would do if you didn't have access to original part.


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PostPosted: Wed Feb 12, 2020 10:39 pm 
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Car Models: 900 turbo aero / 99 Turbo
The part arrived in the post this morning from a forum member.
Many thanks to all for advice and effort. What a brilliant resource this forum is.
Thanks again.


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