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 Post subject: Re: 944 S2 Repair
PostPosted: Mon Sep 20, 2021 9:04 pm 
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Another work of art

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 Post subject: Re: 944 S2 Repair
PostPosted: Mon Sep 20, 2021 9:28 pm 
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Awesome. If anybody is on PCGB as well, probably know I'm into an engine rebuild. I'm hoping to receive a shiny rebuilt short motor soon with westwood liners and wossner pistons amongst other things, and I sincerely hope it looks like some of your pictures Simon!

Will have a Cometic to suit as well, crank balanced and polished, pick up support bracket, mains, big ends, seals, gaskets etc.

Currently giving thought to clutch, new 60k miles ago. Have asked my mate to give me a report. Anybody know if you can get the friction plate done alone if need be? (Sorry Simon don't want to hijack your superb thread!)

Cheers

Stuart

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'90 944 Turbo - Sunroof delete, Factory bridge spoiler, CS wheels, CS steering wheel, 1st MY90 turbo in UK

Promax L2 chips, SciVision MAF, Lindsey DPW, MBC, Forge recirc valve, 3 bar FPR, K&N panel, GAZ Gold, wideband AFR, Sytec Motorsport Fuel Pump.


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 Post subject: Re: 944 S2 Repair
PostPosted: Mon Sep 20, 2021 9:47 pm 
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Thank you Waylander , much appreciated but a lot of the work had already been done by Baz at Hartech .
As such Paul the liners were already installed and honed in preparation for the pistons which I installed not taking great note of the exact wall clearances only that it was a lot less than that I have been using with the iron sleeves and closer to alusil clearances .
Sorry to hear of the demise of your engine Stuart , I used Orca based in Borden ,Hampshire to make my clutch disc into a six puck , you can see it on page 13, but they can also resurface with a choice of materials an old disc . Just got to watch out for those little springs in the turbo disc are secure .


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 Post subject: Re: 944 S2 Repair
PostPosted: Mon Sep 20, 2021 9:55 pm 
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Thanks Simon. Yeah its a pita but the new engine should be fresh and strong and last years.

Good info about clutch disc. Money is v tight but would be foolish not to look at the clutch while it is out, hence thinking about maybe doing the disc only. At 60k miles its probably half done. Had a six puck before in a seriously modded RST, didn't drive too bad. I will only be running about 320 horses max so was thinking a fresh standard disc may be the way to go. Can only see full kits for sale though hence question.

Cheers

Stuart

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'90 944 Turbo - Sunroof delete, Factory bridge spoiler, CS wheels, CS steering wheel, 1st MY90 turbo in UK

Promax L2 chips, SciVision MAF, Lindsey DPW, MBC, Forge recirc valve, 3 bar FPR, K&N panel, GAZ Gold, wideband AFR, Sytec Motorsport Fuel Pump.


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 Post subject: Re: 944 S2 Repair
PostPosted: Tue Sep 21, 2021 10:20 am 
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sgl1966 wrote:
As such Paul the liners were already installed and honed in preparation for the pistons which I installed not taking great note of the exact wall clearances only that it was a lot less than that I have been using with the iron sleeves and closer to alusil clearances .



I've said before that Baz is a clever fella, but I'd still be twitchy when I think Wossner spec more clearance. Or maybe they quote less for use in Nikasil plated alloy wet liners?


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 Post subject: Re: 944 S2 Repair
PostPosted: Tue Sep 21, 2021 5:35 pm 
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Less clearance with nicosil ally liners , I have read , 'so it must be true' , that the 911 brigade are looking at clearances between .0015 and .002 when using nicosil .
I had no choice in clearances as honing the cylinders larger would risk making the nikosil to thin or going through to the aluminium and with Barry's knowledge and experience I can not see that this was not thought about in some detail.
I will, when I find my bore gauge , measure the spare liner and another piston I have and let you know what they are Paul . Till then fingers crossed !


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 Post subject: Re: 944 S2 Repair
PostPosted: Tue Sep 21, 2021 6:09 pm 
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Thanks Simon. It would be interesting to know, what pistons Baz is using in all his 911 and Boxster rebuilds now?


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 Post subject: Re: 944 S2 Repair
PostPosted: Sat Oct 09, 2021 2:16 pm 
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Paul , measuring .003" with that spare liner .

Started to put on the later hubs , discs, adjustable top mounts and refurbed audi calipers today but managed to chip one , on the face showing of course ,so its gone back to be repainted . Looking at the spacing , I could have got away with 345 discs .
Can't use the front grease caps with these wheels so will try and machine them down to fit but everything is covered by the wheel cap for now. Also dust shields and air deflectors are no good so will look at sorting out some other method to deflect air .

As for the wheels , how about some bling !! Really suits an 80's car .

18 Cargraphic 3 piece wheels needed to clear the calipers . What an arse of a job refurbing these especially when you realise after assembly that you have mixed up one of the barrels and rims ! Frantic times to take apart while silcoflex still pliable . The paint isn't perfect , but it will do for a while till I have more time to redo them.
These are quite a heavy wheel as the have a solid stainless steel rim but ideal for the roads around here with the large number of pot holes . Gave them a coat of Shelby ceramic coating to help ease the cleaning .

Can' say how the brakes are until I get the other caliper back but here are some photo's as we all like pictures.


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caliper 11.jpg
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caliper12.jpg
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caliper14.jpg
caliper14.jpg [ 237.18 KiB | Viewed 199 times ]
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 Post subject: Re: 944 S2 Repair
PostPosted: Wed Oct 13, 2021 11:28 am 
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Thanks for the piston info Simon. I expect an alloy liner will expand faster/more than a ferrous liner, so .003" should be good. The wheels look great, I didn't have much luck searching for the brakes you're using though. I don't recall if you're using a different master cylinder?


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 Post subject: Re: 944 S2 Repair
PostPosted: Wed Oct 13, 2021 5:58 pm 
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Master cylinder the same at the moment but if there is a longer pedal , I believe there is a BMW 750 master cylinder that will fit and correct things . Won't know till I drive it.


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