swarfify Posted November 17, 2015 Share Posted November 17, 2015 Hello, I am new to the forum and thought the Discovery section was the place to ask a question. I have a Series 3 that I have re-engined with a 1990 200tdi Dicco engine. My question is, If I accelerate under 2,000rpm I get lurching (like a learner driver with their foot bouncing on the gas pedal) After 200rpm I get loads of smooth power. I suspect the fuel injector pump? but have no experience here. It is a 200tdi BoschVE with standard cable throttle. I have taken up slack in the cable. I have renewed the fuel filter and can prime OK with the lift pump. I have checked all fuel lines and tightened the leak off banjos. Any ideas please? Chris. Quote Link to comment Share on other sites More sharing options...
BogMonster Posted November 17, 2015 Share Posted November 17, 2015 Engine mounts allowing some sort of resonance at certain speed/load combinations? Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 18, 2015 Share Posted November 18, 2015 It could be the asymmetric spindle in the FIP sticking. The turbo produces air pressure this is transmitted via a small diameter hose to a diaphragm at the top of the FIP (under the square cover - 4 screws) this diaphragm pushes an asymmetric spindle down which in turn pushes a plunger to govern the amount of fuel supplied to the injectors. If this spindle is sticking it will give you a kangaroo ride. Remove the cover - carefully - check the diaphragm and spindle, note the EXACT position of the spindle and put it back in the EXACT same position. If it's been sticking there will be wear marks on it and on the plunger pin located at the engine front of the spindle. Lubricate the spindle and put a dab of engine oil on the pin, reassemble and test drive. Quote Link to comment Share on other sites More sharing options...
blackbox Posted February 14, 2016 Share Posted February 14, 2016 A friend had something similar. Replacing his engine mount rubbers with new ones stopped it. He replaced them with Ford Pinto ones as they are a little bit taller so he also got better clearance on the front pulley. HTH Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.