1986 Bmw M6!

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#1
Hey everyone,

I know it's been a while since I've visited the site in any meaningful way but I've been moving house so no internet. All done now, which is good, except for the fact that there's no garage for my freaking car and I'm not a happy chappy. But that's another story.

The reason for this post is with regards to the M635csi - commonly referred to as the M6. My dad, myself, and my brother are looking at buying an '86 M6 which just makes me drool every time I see it. 286BHP from an S38 will make you do that [pray]. And it's only done 70,000 miles (120,000km) in nearly 20 years.

Anyway, the car was imported form Hong Kong in the late '80s and is one of about 5 examples in Aussie. I've done a bit of reasearch and discovered that there were only about 500-odd right-hand-drive versions of the M6 made globally! About 4,500 more were made in LHD, so it's a pretty rare piece of kit.

I've also discovered that 6ers, in all variants, are quite prone to rear-quarter-panel corrosion but apart from this they seem quite solid. There is also the issue of the Michelin TRX tyres but since the car we're looking at doesn't have those special metric rims there's no real problem. I've cheked the VIN numbers and ot all matches up so that's great. The car is definitely genuine. What we want to do is basically rebuild it since the front suspension is shot anyway (vibration under braking) and bring it up to concourse condition. The mechanicals of the car are fantastic and the engine is just superb. One other thing which worries me slightly is the fact that the original books are lost.

What do you guys reckon? And would you have any rough ideas about the costs involved in rebuilding the car? I realise it's a little-known BMW but any input would be great. Good to be back.
 

aNoodle

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#2
Glad to see you back....wish I knew more of the M6. Given the low production numbers I hope it wouldn't be crazy expensive to rebuild.
 
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#3
Yeah cheers.

The bloke that's selling the car said it's an 8-week process between order and delivery for parts on the M6. They have to be shipped out from Germany as that's where the spares are stocked. Still, I don't care how long I have to wait for parts, as long as I have an S38 in my driveway!
 
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#4
welcome back Pete! i guess you weren't gone long enough for us to start a "where's Pete" thread [:p] either way, that sounds sweet. i dont' know a thing about the old skool M6, but i'm drooling all the same after hearing you talk about it.

and build yourself a nice garage so you can be a happy chappy. (the first time i heard that term)
 
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#5
The S38/M88 is a very expensive engine to replace. It requires frequent valve adjustments and really needs to be cared for by someone with experience working on old M-cars.

M-specific parts will be hard to source and very expensive. The general E24 parts will be much easier to find. I believe the M6 has a self-leveling rear suspension that is often problematic later in life and usually replaced with a traditional suspension through the aftermarket.

There are a lot of owner's groups on the net. Do a few searches and you should be in contact with owners and enthusiasts that can give you a much better answer than I.
 
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#6
You mentioned that you would like to do a Concours restoration. For a common car with decent parts availability, you can spend $20K - $40K to do a TRUE Concours restoration. It will be alot more for a 80s M6.
 
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#7
brahtw8 said:
The S38/M88 is a very expensive engine to replace. It requires frequent valve adjustments and really needs to be cared for by someone with experience working on old M-cars.
Yeah thanks for the advice. I know a bit about the S38 as it stands so that's all good and we've found a BMW M specialist right here in Melbourne. It's called Autologic and you can find them on the web at www.autologic.com.au
 

epj3

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#8
Chesty as someone said about valve adjustments. Well, you can't do them yourself unless you have a lot of the proper tools. You have to manually shim the solid lifters...
 


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