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Me 'star has a 1Z and when i was tinkering the other week realised it has a JX flywheel/clutch/input shaft.
Going to keep the input shaft as is, have got a WBX clutch disc/plate from GSF (they sell them individually ) so just need to sort out the flywheel and pressure plate.
(1) The VR6 plate is widely quoted as being the best. Anyone know the specs of Tdi/VR6 plates etc and is it still the best to go for on a Tdi that will get a little bit of tuning and take the most torque? Anyone know where i can buy the pressure plate from seperately or the only option is to buy a complate kit?
(2) Best options/suggestions on flywheel? Looking for info/discussion/deabte on flywheel weights but cant find any. VW R+D decided that the Tdi flywheel should be heavier than a JX one for whatever technical reason. What are ideas/opions on keeping a heavier flywheel? How do i make it 'work' ? Can i run unmachined Tdi flywheel but use a Tdi starter with a spacer/adapter? im confused!?!?!?
TDI Engines
1.9 1Z,AHU 90bhp / 202 Nm (149 ft lb)
1.9 AFN 110bhp / 235 Nm (173 ft lb)
PD Engines
1.9 AWX 130bhp / 285 Nm (210 ft lb)
1.9 AVF 130bhp / 310 Nm (229 ft lb)
1.9 ARL 150bhp / 320 Nm (236 ft lb)
so the VR6 clutch should have ~20% more clamping force than a 1Z one. You might want to keep an eye on Ebay, I got an exc. Sachs VR6 clutch for £20. If you want new, you could try getting an exchange one from VW by taking in a very dirty TDI one, as they look very similar and the parts guy probably won't want to get his hands dirty.
Re. starter, not sure what more I can say, the TDI one is readily available cheaply compared with the rather obscure and elderly JX one, and works better (more powerful). I find my TDI fires up instantly without any of the painful grating noises you often hear when cranking an older T3 TD installation. You need an adapter to allow the pinion to engage with the ring gear correctly, the TDI starter pinion comes out ~11mm further from the mounting surface cw the JX one, and has 10 teeth vs 9 on the JX, so must be centered further out by ~1.1mm.
Syncrosport (taking a break as of summer 2024)
Volkswagen Transporter, reloaded.
Did i read somewhere you make/sell the tdi starter adapters?
Well, I did make one with assistance from my bro, who has a Boxford lathe, pics are on my BY build thread. However I've no plans to make them 'commercially', certainly not by hand, as it took several hours. They are available for 50-60 euros from Germany which is what I'd recommend if you can't get one made.
Last edited by syncroandy on 14 May 2012, 17:52, edited 1 time in total.
Syncrosport (taking a break as of summer 2024)
Volkswagen Transporter, reloaded.
could of sworn we had this whole thing out on tuesday morning last week! the flywheel is a store of energy, and the more it wieghs the longer it takes to "charge" but also goes harder for longer, ideal for slow running in a syncro but plop all use for ramming on up the gear box on a back road or taking out roundabouts like Mansell with a curry going cold on passenger seat!
Andy.." you could try getting an exchange one from VW by taking in a very dirty TDI one, as they look very similar and the parts guy probably won't want to get his hands dirty" good luck with that! but in the past its never worked for me, also a clutch plate or cover is often the same money as a kit
we did but the combined effects of your phone signal turning you into norman collier, me being speshul and you using big words left me none the wiser.
In laymans terms all i want(ed) to know is whats the best/biggest flywheel i can fit in with no hassles. read somewhere that some big/fat tdi flywheels mean you cant take sump off without removing box/flywheel first.
yeh..if you use the tdi f/w with the lump on the back it means the sump bolts are ungetatable, a petrol one is flat on the back so you can, but also a lot less mass somight result in a less smooth engine...but i doubt it, i have put petrol flys onto AAZs in golfs etc..ok idle, quick pickup and fine on the road...but not a real chugger that stops at nowt.
I'm almost 100% convinced that mine is too light. Makes for skittish, jerkyyness at low revs when trying to maintain constant speed. Fine when gunning it, under acceleration and at high revs.
) so just need to sort out the flywheel and pressure plate.
