Clutch hot spots, pictures inside
Turbo Mini Forums

I have just had to partly strip a freshly built engine (with only 50 miles on it) to sort a gearbox issue and have now had a new bush fitted to the primary gear due to it sweating oil slightly.

Thought i'd check the clutch over while it was apart to clean away any oil in the drainage holes and this is what i found:

Evidence of corresponding marks on the flywheel can be seen aswell. The whole assembly had a strong smell of burning friction material. Is this acceptable as these high spots have got very hot indeed judging by the colours on the iron?

What pressure plate is that? looks new? and what is the spec of your new engine?

I would personaly say that they are scrap, as the over heated parts of the friction surfaces will now be a different hardness and may cause judder.

If the slipage was due to oil saturation, fair enough, but only after 50 miles? I would be looking at the rating of the clutch.

While I am here, make sure you tighten those bolts in the center to at least 45lbft, the perimeter bolts are 18lbft

Mine is exactly the same. I slapped it back on and its fine.

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1/4mile in 13.2sec @ 111 terminal on 15psi

There is more than one AP pressure plate, with differing clamping forces, that is what I was trying to get at.

Is it a standard 998, 1275, Minispares 'Uprated', Turbo or other?

my mistake, it's a 190mm valeo kit that i'm running, from minispares. http://www.minispares.com/Product.aspx?ty=...=0&tc=1#submenu

Mine was far worse than that after last years outing at castle coombe, persivered with it untill recently. skimmed it which left a few high spots, the judder is very minimal on take up. Id put it back in.
Shane

is the rest new ie rod and slave i had one that had worn causing same sort of prob i changed them to solve my prob

Yea the rest of the assembly was new also. It's running fine after refitting so i'm leaving it