Hi all, so I'm mounting a 1600 CU code gearbox to a W code type 4 engine. I understand that the input shaft on the gearbox is to short. I also understand that I need a needle bearing pushed in to the flywheel. Is the bearing faced or does it not matter which way its pushed in the flywheel. Is that all I need to do are do I have to press anything in on the engine side. The other thing that's confusing me is the internal diameter of friction plate from the the W code clutch is to small to fit on the input shaft of the gearbox. Are there different sizes and what size do I need. The outer diameter of friction plate is 210mm. Rough measurement https://flic.kr/p/UsHXiw All advice appreciated
I think a W Code engine is from a Porsche. Not sure about the gearboxes they used, but all the Bay gearbox input shafts are the same diameter, with the same splines, just the later Type 4 ones are longer. This is why you need the bearing fitting into the flywheel, otherwise there's nothing to support the shaft. The 914 did use a different flywheel, but I thought that was just for the starter teeth. These were 215mm so it sounds like you've got a Bay flywheel if it's a 210mm clutch disk. I'm surprised the clutch you've got doesn't fit on the splines?
Hi Markpc, engines out of a vw 411le variant, (which was in the 914 or similar) 1700 which i'v kicked up to 1911cc. And the gearbox on the 411 is that car only. So that explains the size, I think. Did you look at my picture, does that make any sense as to what clutch kit I need? Are you saying that as long as I get a clutch kit for a 1600 gearbox that is 210mm with the needle bearing in the flywhell, I'm go to go? Appreciate your response. Cheers, Jon
I'm doing the same but on an prototype bay. 215 or 200mm clutch works ok and 210 should too. As far as I can make out the outside diameter of those flywheels are the same but diff clutch discs. Push bearing into the flywheel (think it needs machining) from the clutch side and you're good to go. I have to mod my bay to later release mechanism or buy a 200mm conversion flywheel. Sent from my iPhone using Tapatalk
The 210mm clutch was only for the 1700,1800 type 4 engine. So it does sound like this is the one you need. Typically it's the most expensive clutch! https://www.vwheritage.com/022198141-clutch-kit-210mm-1-7-1-8-74 The diameter of the flywheels are the same, it's the face where the clutch disk comes into contact that you need to measure. You'll definitely need the pilot bearing pressing into the flywheel, and you need to remove the pilot bearing from the end of the crank too. Otherwise the flywheel won't fit back on. Should cost about £10-£20 It's the same size pilot bearing that's in the type1 flywheel bolt. http://www.machine7.com/product.php?xProd=201&xSec=85 If you get the spec of this bearing they're about £2 off eBay.
Hi Markpc, Do you need to machine the flywheel for the bearing or will it press I ok? And a 215 flywheel can use a 215 type 1 clutch which is a bit cheaper. Sent from my iPhone using Tapatalk
Yes, the centre needs drilling slightly larger to accept the bearing. It need to be an interference fit so it doesn't spin. I don't think you can use the 215mm type 1 clutch kit as the pressure plate is different
Drilling or turning on a lathe? Need to find a flywheel and a friendly machinist! Sent from my iPhone using Tapatalk
Ok cool. I've got a pillar drill and small lathe but not one big enough for the flywheel. Sent from my iPhone using Tapatalk
This is what you need to end up with http://www.germansupply.com/home/customer/product.php?productid=17427&cat=372 Bottom picture shows the bearing close up. Much cheaper to make your own than buying one of these.
Cool thanks. I've got a 914 with the bearing in but that's no good for a bay - will fit my 03 with 901 box. That link says 210 is the only flywheel to fit but I'm sure what I read said a 215 would fit a bay. Sent from my iPhone using Tapatalk
Yes, that's to fit into a beetle gearbox. It's the same principle but the bay gearbox is big enough to take the 215. It was the only picture I could find. Wish I'd taken some pictures when I did mine
Cheers for your help - much appreciated. When I find a 215 I'll sort it out. Hoping to be able to drill it square. Sent from my iPhone using Tapatalk
