More shit that doesn't merit its own thread (septic tank overflow alert)

Did you put MID80 in the checkout?

Yes, came down to ÂŁ204
Just wasn’t sure if that pic is the clutch and flywheel

No, that’s just the friction and pressure plates and the thrust bearing. No flywheel. That’s expensive.

You can do it a lot cheaper if you switch from a dual mass flywheel to a solid flywheel.

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May as well get a new one at that price, will get a quote on fitting costs :+1:

Do you have to worry about imposing excess load on other bits of the transmission then though ? DMFs seem to very unpopular for all sorts of good reasons, but if using one allowed the designers to skimp elsewhere then doing away with it might have consequences. I guess whether it’s a good idea or not depends on the particular model.

VB

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Quite. Going to a solid flywheel can easily case other issues like broken crankshafts. In general it’s not a good idea.

Also try carparts4less - sister co. of EuroCarParts, but often cheaper and also Autodoc.

The DMF may or may not need doing. Is there a lot of snatch/clunking, etc?

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It drives fine unless I put the revs on high then the rev counter shoots up slipping, normal driving it is OK but bites low. Now again if I come to a roundabout and change down gears it won’t go, and I have to lift foot off the clutch then press it again, but that rarely happens

The other engine died as the timing belt was put on slightly out so this was another engine put in, they thought the clutch had more life in it

Not knowing how work is going to pan out, it probably makes sense to go new as I may be doing some sort of pick up delivery type work in my car

Just trying to do it on the cheap which isn’t always the best way

Normally if the clutch is failing, it slips more in higher gears than the lower gears as the mechanical advantage is less. Must be really quite bad if it’s doing it in the lower gears.

But there could be other issues than just a worn friction plate. My Audi never got to the point of slipping, but started to give gear selection problems - the release bearing was knackered before the plate wore out.

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If they/you haven’t already, check for an oil leak. I had similar issues in my last car and it was the engine oil seal leaking oil onto the clutch. Started with slipping in top on the mway (accelerating after slowing) then worked down to lower speeds and gears

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Fair enough, I only have anecdotal information from the BMW forums where they generally seem to have had positive experiences. I suppose people don’t tend to tell you when they fuck up their car though…

It’s generally a performance mod - people do it on 911’s as well, for performance reasons (lighter, solid flywheels), but as @Valvebloke notes, there’s less damping in the drive train, which can allow resonances to develop and anecdotally, in rare cases, this has resulted in snapped cranks. I wouldn’t be trying it personally, at least not without a lot of research into whether it’s likely to have any side effects. At the very least, it’s likely to increase noise and vibration and make the car less driveable.

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When we had the clutch replaced on our last Mondeo we asked for a price and the guy said it would depend on the flywheel. The standard fit was a DMF, but he thought even Ford had fitted solid flywheels at some point in the production run, and individual owners certainly had. I can’t remember the exact numbers but the price would be x if there was a solid flywheel and (probably) almost 3x if there was a DMF. It turned out we were lucky. He did mention in passing though that solid flywheels shortened the life of various bearings in the system and would give clunkier performance.

VB

Yeah, they’re normally fitted for smoothness and driveability reasons. The stresses will inevitably get passed on somewhere else in the absence of the damping a DMF provides.

http://www.marinediesels.info/Horror%20Stories/crankshaft%20failure.htm

MrsKettle reckons that is what happened here essentially.

Crank calculations try to place the node between the flywheel and the first bearing, changing mass or other behaviour will throw that out.

Clutches…meh…unless you have two obvs :smile:

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Clutches are like platters. Said nobody, ever.

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Two clutches defo better than one

Thing is (no dis to Stu) it’s a clapped-out Astra driven for economy at modest speeds, not a high-performance supercar! A solid flywheel is gonna be way less of an issue in drivetrain longevity than the sheer amount of play that will exist by now in things like main and big-end bearings for instance - it ain’t gonna live forever, may as well keep it going cheaply.

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Is it? You know that for sure, right?