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SC12 kit questions.
https://www.ausmini.com/forums/viewtopic.php?f=2&t=28848		 Page 1 of 1
Author:  slinkey inc [ Mon Mar 05, 2007 7:47 pm ]
Post subject:  SC12 kit questions.
A little backround info. I finally have my SC12 kitted car running, it seems to idle nice-ish at around 1000 rpm. Although after about a minute of running white smoke pours out from the bottem of the intake manifold but I think that's just paint buring off, smells like it, we'll see.

The problems are,

One. A 'clacking' noise. It does sound like a garage air compressor noise so maybe it's what a supercharger sounds like? If not do they make any kind of noise? If it's not 'charger I ahve to investigate further.

Two. How do they go for exhaust leaks as the manifold is chopped to fit?

Three. Is the 'paint' burning normal? Possibly something else?
Author:  supercharged 850 [ Mon Mar 05, 2007 10:44 pm ]
Post subject: 
Supercharger could be rooted. If it has the electronic cluch drive, remove the power supply so that the SC does not engage. If the noise stops, you'll know where it's coming from.

Another thing to do is: remove the drive belt, power up the clutch, then spin the charger by hand. Listen for any rubbing noises or feel for any resistance in a particular spot. If something is bent or out of alignment, it will feel tight at the same spot every turn. You dont want that......

There is a possibility that one of the rotors is touching the casing, which could be making small metal shavings.......
Author:  PetenSoaf [ Tue Mar 06, 2007 10:33 am ]
Post subject: 
The 'clacking' and leaking problems may be one in the same - the noise may just be a manifold leak. With the motor at idle, spray a bit of WD40 around the manifold joints (manifold to supercharger and manifold to head) - if you get big clouds of white smoke out the exhaust, you may have a leak somewhere. . .
Author:  slinkey inc [ Tue Mar 06, 2007 3:18 pm ]
Post subject: 
I actaully remember now when Ben Afford delivered my kit, he played with the charger a bit. And it amde a click noise every rotation, I asked him if that was bad he said that some are noisy and some aren't, I remember him saying it wasn't an issue. Other thing is, yes i have the electric clutch thing, but when it was off the car it turned anyway, maybe the clutch doesn't work?
Author:  slinkey inc [ Tue Mar 06, 2007 3:21 pm ]
Post subject: 
PetenSoaf wrote:
The 'clacking' and leaking problems may be one in the same - the noise may just be a manifold leak. With the motor at idle, spray a bit of WD40 around the manifold joints (manifold to supercharger and manifold to head) - if you get big clouds of white smoke out the exhaust, you may have a leak somewhere. . .


yeah I'll have a go. What imeant was, do they generally have exhaust leaks? Due to the way the kit is, with the extractors being cut back and all. That was directed at other users of the kit.

Thank for your advice though. I'm not taking any risks before driving it, want to get it all good.
Author:  PetenSoaf [ Tue Mar 06, 2007 3:28 pm ]
Post subject: 
I have the kit fitted to my Moke - and I had no problems with exhaust sealing - the big thick manifold washers are still holding the exhaust in place, just not locating it like they do on a standard setup.

What part of the pulley turned when you had the supercharger off the car? The outer 'ring' of the pulley will turn all the time but the centre section should only turn when the clutch is powered - oh and be aware that some SC12's have a tin 'cover' over the pully so that it looks like the whole thing is spinning even when the clutch isn't powered.
Author:  slinkey inc [ Tue Mar 06, 2007 3:53 pm ]
Post subject: 
When it was off the car, when you turned the pulley the inside turned too, giving nice air at ur face LOL.

It was sticky at a certain point but when you span it faster by hand you didn't notice. Ben Afford seemed to think that was OK. It possibly isn't the charger but something else, thje car made funny engine bay noises before so maybe it's a carry over from something else. I haven't drivin it in so long I cant remember.

Just saw another problem.... :evil: The tension pulley looks like it is touching the bottem water hose. :evil: Which means radiator out again to fix! The Tension pulley IS touching the radiator cowling just on a certain part but it seemed to sort of cut itself back very quickly to fit in, if the rad has to come out i'll mod the surround to fit.
Author:  PetenSoaf [ Tue Mar 06, 2007 4:03 pm ]
Post subject: 
Sounds like the clutch is stuffed (or at least sticking) then.
Got a welder?
Just zap the outer ring solid to the inner - no more clutch problems.
Author:  slinkey inc [ Tue Mar 06, 2007 4:14 pm ]
Post subject: 
I'll look into it!
Author:  92 [ Tue Mar 06, 2007 5:48 pm ]
Post subject: 
If the tensioning pulley is touching the radiator gaurd that will be your noise on round nose cars the radiator sits a little closer to engine and a little grid of the gaurd is sometimes required to make it clear. The SC's sometimes make a bit of a werring sound and it echo's through the manifold. The pulley should definately not be touching the radiator hose and will need to reposition the hose slighty. The hose sometimes touches the support of the tensioning pulley but not the pulley.
The smoke is probably coming off the exhaust as you have just fitted it and will have oil and stuff off your hands and will burn off and be OK
Author:  slinkey inc [ Tue Mar 06, 2007 6:10 pm ]
Post subject: 
Yep cheers Ben you confirmed everything right there.

I was just having a play with it. Tension pulley is touyching cowling, made a big squal, needless to say, tomorrow after school I'm taking it off to cut away at it.

The bottom hose is iffy. I can't tell if it or not, so I'm gonn check to make sure it isn't.

Charger appears to be fine, 'clacking' noise is exhaust leak and smoke is much less now than it was the first few runs, so it'll all be fine, but a few more weeks away.
Author:  sox61 [ Tue Mar 06, 2007 8:19 pm ]
Post subject: 
My car is still at the tuner's, runs about 8psi as it is but he can't seem to get decent figures out of her... :evil:
I always thought she was a little under-powered for the work i had done but thought it may be down to just a decent tune-up to sort it out?!
Is it possible my cam timing is not 100% correct, hence the lack in power. He's going to look at this in the next few days so i was just seeing if anyone else has had this issue?
Is there an adjustable cam timing gear for the mini, and if so do i need one?
I wanted it running for the 18th (mini's at the bay) but now it's looking very close :( i may not get her there!!
Author:  DOZ [ Tue Mar 06, 2007 8:53 pm ]
Post subject: 
I worked on a 1445cc (stroker) engine once that was way down on the expected output, it was slower than the 1310 I owned at the time. I timed in the cam properly for the owner and it made a huge difference. With a supercharged set-up I would assume it might be even more critical given the higher pressures involved.

Daniel
Author:  sox61 [ Tue Mar 06, 2007 9:16 pm ]
Post subject: 
Thanks doz..
I'm going to see the tuner tomorrow and see exactly what's going on as i've been away. I was expecting to pick it up today...
It's possibly pumping out figures closer to a stocker than a boosted 1098!! That's what i understood from the quick phone call this arvo.. NHJ! As they say, timing is everything.
Author:  slinkey inc [ Wed Mar 07, 2007 3:16 pm ]
Post subject: 
Well I can't say if my car is any faster, it's not yet 'driveable' although it does run. Still got thing to sort out.

But I must say it runs much nicer on charger than it did before on twins, which is odd. :?

Also it was much more repsonsive when I ran it. Like it was happier to jump up rpm fast than before, but under no load not much can be said. Possibly all due to the carb. A rebuilt HIF6, as opposed to twin HS2s.
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