Thijs Leuven
Active Member
Hi guys!
I'm experiencing some gearbox troubles on my not so standard P6. Therefore, the following question is more a general one... My P6 has a 4.6 V8 out of a Range Rover, and the gearbox is a much younger three speed GM box, that has a vacuum modulator.
Does the flexibility and internal diameter of a vacuum line influence the amount of vacuum the gearbox can get? I imagine so... What kind of vacuum lines are you guys using? I have zero experience with this, so I'm not quite sure what to look for in the new replacement lines.
My car has had a bad case of a splitting vacuum line, over and over again. It wouldn't shift beyond first gear because of this. I decided to remove it completely. I had some spare fuel line in my garage, so decided to put that in instead. The outer diameter is the same as the vacuum line, but the internal diameter is much smaller. It's only 4mm, compared to the 6-7mm of the old line.
The car shifts again, but it feels a little less smooth and most importantly: it only shifts at 3000-3200rpm, no matter how gently I accelerate.
Thanks in advance, any help is much appreciated!
I'm experiencing some gearbox troubles on my not so standard P6. Therefore, the following question is more a general one... My P6 has a 4.6 V8 out of a Range Rover, and the gearbox is a much younger three speed GM box, that has a vacuum modulator.
Does the flexibility and internal diameter of a vacuum line influence the amount of vacuum the gearbox can get? I imagine so... What kind of vacuum lines are you guys using? I have zero experience with this, so I'm not quite sure what to look for in the new replacement lines.
My car has had a bad case of a splitting vacuum line, over and over again. It wouldn't shift beyond first gear because of this. I decided to remove it completely. I had some spare fuel line in my garage, so decided to put that in instead. The outer diameter is the same as the vacuum line, but the internal diameter is much smaller. It's only 4mm, compared to the 6-7mm of the old line.
The car shifts again, but it feels a little less smooth and most importantly: it only shifts at 3000-3200rpm, no matter how gently I accelerate.
Thanks in advance, any help is much appreciated!