How do the old IDI diesels do with lighter flywheels? Does it help acceleration? And what about vibration? How much worse is it?
My 1984 Jetta Diesel (Normally Asthmatic 1.6D) currently has the 210mm clutch setup from the later 8V 1.8L gas engines on it. I've got the transmission off (another question about that later), and I'm considering putting a new clutch and pressure plate in. While I'm at it, I might switch flywheels. I already have a new in the box 200mm pressure plate and clutch kit. This is a little old. It was a spare for my last diesel bunny, and it's probably 6 or 7 years old, but never used. I'm sure it should be fine.
I also remember in the old days, the guys with the gas engines would use the 200mm pressure plate and clutch with their 190mm flywheels on the gas engines. The 200mm pressure plate had more clamping force, and the 200mm clutch could handle a bit more torque and power. The 190mm flywheels were much lighter, and they bolted right up to the 200mm diesel clutch and pressure plate. That was the "hot ticket" back in the early 1980's, before the 210mm setup arrived with the 1.8L engine in the Rabbit GTI.
If I go with the clutch and pressure plate that I have, I'll need to get a flywheel that matches. The 210mm flywheel I have has 9 bolt holes, and the 200mm pressure plate is set up for 6 bolts. I'll be looking for donors at the parts yards (hopefully ones that have already had the transmission harvested), and I'm wondering if I should get the lighter 190mm flywheel? or should I look for the heavier 200mm one that was the stock item for the diesel engines?
Topic: Lighter flywheels? (Read 1959 times)
