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172 one is indeed longer than Williams. With the williams item fitted on my 172 setup you can see its ever so slightly too short (not going into the bushes fully)
The 'short shifter' kits usually consist of two parts - the gear lever and the small pin that is for the box end. The reason peoples boxes seem to f*ck up is when this pin is fitted, as it does make the throw a lot shorter than just using the stick/lever. Ideally just fit the lever and be done...
The depth of the pushrod cavity in the Cylinder is less on the 172 item. The servo isnt adjustable either - sigh.
Ive got some M12 males, probably going to make two fresh lines (its O/S Front and one of the Rears that are the M12's - has a joiner under the bulkhead), and just swap and change if...
Re: Mk1 F4R/172'd Track Car Project
Yeah, might be worth looking into. I already have a drivers side hub spare that I always take to trackdays with me incase of bearing failure etc, too bad it was passenger side on the day. Il probably end up fixing the hub with a new bearing/stub considering...
Re: Mk1 F4R/172'd Track Car Project
Yeah, the thing is though - 12/13 trackdays last year and over 10k miles in total and its never happened before? It can only be down to the hub being worn or loose bolts somehow really...
I was considering it a while back to make it easier when changing...
Re: Mk1 F4R/172'd Track Car Project
Well, they are taken on and off alot (the amount the cars in bits) and every trackday wheels are swapped to the Superleggeras etc, so it could be related to that BUT the other side was still tight and so were the backs, which are taken off just as much...
Re: Mk1 F4R/172'd Track Car Project
Either the hubs threads were previously f*cked somehow, or they had come loose some other way, I have no idea how its happened which is quite worrying! Its never happened before, and I only did the same as I always do with torquing them up, etc.
I use cheapo high temp black silicone sealant from the motor factors - £3 for a tube that fits into a caulk gun. Rated to 350deg+ or something, works perfectly and never had a problem. Whereas the firegum/paste s*hite just cracks and starts blowing
I use the cheapest 10w40 I can find, just under £7 for 5 litres. Used it all last year, 10k miles and 12 trackdays at 6000rpm+ all day long, didnt even burn half a litre throughout the year.
Re: Mk1 F4R/172'd Track Car Project
Properly wierd as I ran those wheels for 3/4 trackdays last year, and then the Williams wheels before that and never once had an issue!
The threads were completely f*cked in the hub anyway, ive got hold of a spare anyway thats being machined today :)
Re: Mk1 F4R/172'd Track Car Project
Fuel pressure reg had been pissed around with and he ended up getting det at high RPM, blowing a hole in a piston and ruining the block :dapprove:
No problem - Maybe Anglesey, we'l see!
Nice pics, was a good day ignoring the problems! He was running PE2's all round Tigger...
Too bad they missed the rest of my car, lol. Also a shame they were not taking pics in the afternoon when we had those few laps!
Re: Mk1 F4R/172'd Track Car Project
Yeah they were fresh, although they had been fitted a few times at home - all the powdercoat had come off round/on the bolt taper/seats - so im quite confident it isnt that :dapprove:
Re: Mk1 F4R/172'd Track Car Project
Right then - Update time.
Before FCS I set about tidying up some bits on the car. The main one was finding some sheets of grip-tape big enough to cover the floor in the shape of a floor mat inside. I didnt want to use a normal mat as it would just slide...
RTOC, its their national meet/day - plenty of tracktime as they rent the circuit for the day. Only £85, everyone usually camps the evening before/after, few of us did it last year was a good weekend
Yeah, hopefully. Will have a look over it all tomorrow.
Also, I bet I could probably get two short braided lines made up with M10 female on one end and M12 male on the other if there are no adaptors easily available which should sort the fitment issue if it does end up working/fitting
What happened, brakes not release?
So I guess if the servo is adjustable it could just be wound in to set the correct length for the master cylinder allowing it to release fully?