DerSchwede
Well-Known Member
Hi,
I went for a drive with my D-jet E3 yesterday and when accelerating through the gears everything was fine - until I started to go faster than 70 mph. Then a zapzapzap - sound started under the car, close to the gearbox. Of course I backed off immediately I drove to my garage to check it.
I drove the same road two weeks ago, even going 100 mph didn't provoke the mentioned sound at that time. Now it was there regardless of which gear the car was in (tested in 4th and 5th at 70-75 mph) Even without any gear and just rolling at that speed gave the same result - the noise was there. So I tested to accelarate to 50 mph in 2nd gear (4000-5000 rpm +) and that was OK - no noise. So it seems to be car speed related and not engine speed related.
The car got a 5-speed Getrag conversion last year with E12-brackets and new guibo, gearbox mounts, centre bearing etc. The Prop shaft is straight and aligned. I've been driving about 3000 miles since without any problems. The check in the garage didn't give much either. Everything was firmly fitted and no signs of wear to the guibo or centre bearing could be seen.
Could it be the tach drive at the gearbox getting old...?
Any thoughts on this?
Cheers
A
I went for a drive with my D-jet E3 yesterday and when accelerating through the gears everything was fine - until I started to go faster than 70 mph. Then a zapzapzap - sound started under the car, close to the gearbox. Of course I backed off immediately I drove to my garage to check it.
I drove the same road two weeks ago, even going 100 mph didn't provoke the mentioned sound at that time. Now it was there regardless of which gear the car was in (tested in 4th and 5th at 70-75 mph) Even without any gear and just rolling at that speed gave the same result - the noise was there. So I tested to accelarate to 50 mph in 2nd gear (4000-5000 rpm +) and that was OK - no noise. So it seems to be car speed related and not engine speed related.
The car got a 5-speed Getrag conversion last year with E12-brackets and new guibo, gearbox mounts, centre bearing etc. The Prop shaft is straight and aligned. I've been driving about 3000 miles since without any problems. The check in the garage didn't give much either. Everything was firmly fitted and no signs of wear to the guibo or centre bearing could be seen.
Could it be the tach drive at the gearbox getting old...?
Any thoughts on this?
Cheers
A
