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clutch plate cleaning

Submitted by robert_tuck on Wednesday, 20 July, 2016 - 01:00
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Heavy Twins

A draggy clutch on the 60 99 has frustrated me long enough, yet another strip has revealed a light coating of black rubber residue from the barely used but years old cush rubbers.For good luck i'm throwing in a new center from RGM . But what to use to wash the plates ?, I have a choice of Diesel, petrol, white spirit,parafin, meths, water soluble paint brush cleaner or sugar soap solution. A HSA inspection of my shed would probably instigate a major incident alert. Better replace that smoke alarm battery!!.

Submitted by gordon_johnston on Wednesday, 20 July, 2016 - 01:02

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You need lots of ventilation! I would scrub them in a petrol or paraffin bath, dry them and then skoosh them with brake/clutch cleaner. It's surprising how much more gunge comes off. If you are really obsessive, another go with electrical switch cleaner gets even more off. A 99 clutch shouldn't be draggy if set up properly. Make sure you have the correct weight clutch springs. Wrong ones can make life difficult.

Submitted by robert_tuck on Wednesday, 20 July, 2016 - 01:03

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I'll most likely use petrol followed by switch cleaner (forgot I had that also 3 types of paint thinners!) . I will have to dispose of several gallons of eth petrol contaminated with disolved tank liner. Really good for the enviroment this ecco fuel.

Submitted by robert_tuck on Wednesday, 20 July, 2016 - 01:04

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I think I have found the problem!, some time ago I bought some new plain plates from the usual culprits. They are a bit too tight in the basket ,after much fetling they may be ok.

Submitted by michael_sullivan on Wednesday, 20 July, 2016 - 01:05

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Sugar soap????

Is that one of the English-english/American-english items that gets lost in translation? Something like suspenders/braces or elevator/lift?

Mike

Submitted by robert_tuck on Wednesday, 20 July, 2016 - 01:06

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Sugar soap is a well known item( in the UK) used to clean and is very effective against grease/oil. More generally used to clean surfaces before decoration.It also leaves no residues and is non flamable and safer to use than the usual stuff.

Submitted by david_cooper on Wednesday, 20 July, 2016 - 01:07

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Petrol... and wear vinyl gloves. .. followed by hot water and Fairy Liquid worked for me. If I had been brave enough I would have used the dishwasher on its hottest setting. In an empty house of course.

Submitted by robert_tuck on Thursday, 21 July, 2016 - 01:00

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The reason I raised this is because some manuals advise NOT to use petrol. Its also possible that eth containing fuel could affect the bond of the lining to plate or the lining itself . If you get to see the range of chemicals that are now ingredients in our fuel you would be amazed at the list. If we knew what chemicals affect the bonds we could at least try to avoid bad stuff.

Submitted by richard_woolnough on Thursday, 21 July, 2016 - 01:09

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just musing here, what about a sonic cleaner with nothing more than warm water and washing up liquid ?, no harmful chemicals here,

I know not many have these things and most are quite small, however it was suggested to me to approach my dentist should he replace his commercial one, did so and would you believe they had a used one with an intermittent fault which they had replaced, didn't know what to do with it so it languished in the cupboard in the way!

'take the thing off our hands and good luck' so I bought the gals a few cakes, result,

lateral thinking, kind regards

Submitted by robert_tuck on Thursday, 21 July, 2016 - 01:10

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I think I have found another issue which may be usefull to other owners who can',t cure a draggy clutch. I had a lot of trouble getting the clutch off the shaft,even with the correct puller. Inspecting the splines I find the box spline to be in perfect condition. The clutch spline (inside the spider) not so good, with rough surfaces and burrs at the shouldered part of the spline, I also see that the end of the spider has been wearing where it is in firm contact with the end of the sleeve gear, Possibly because the clutch center nut has been well overtightened at some stage. I don't think this contact should happen and is likely to be the cause of my ongoing clutch drag. I can relieve the end of the spider to provide clearance and can check this by fixing the spider on its own to the shaft. How much clearance should there be?,what do you think?. These main clutch parts are all orriginal Bracebridge St ,no iffy pattern stuff so its likely that other owners may find similar problems with the aging parts.My suspicion is that a poor sized lockwasher has not provided the support to the small spline step in the spider .

Submitted by carl_sanders on Thursday, 21 July, 2016 - 01:11

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The best I found is panel wipe used before you respray a car. I tend to use a toothbrush and a baking tray. Let them soak for a while before you clean. Stubbon bits use a bit of soaked scotchbrite. Once done I then use a spray brake cleaner at £1 in the poundshop. Diesel will leave a residue, so will meths and to an extent petrol so avoid those. Wear gloves is my tip especially if you want to get near the wife after!! Oh and use her toothbrush not yours!! Do it in plenty of fresh air as its strong stuff

 



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