Search found 5 matches

by donalchanner
Mon Jan 21, 2013 11:02 am
Forum: Mechanical
Topic: Differential Change
Replies: 16
Views: 1957

Re: Differential Change

HI, I know where the restrictor would be as I took one off my first minor a telephone engineers van in 1969. The pickup gets up briskly to 50 and then feels as if I should be changing up a gear. My point about the pedal was that it is not lack of travel which is causing the problem. Since I had the ...
by donalchanner
Sun Jan 20, 2013 3:53 pm
Forum: Mechanical
Topic: Differential Change
Replies: 16
Views: 1957

Re: Differential Change

Hi, You were right about the wheels although they measure 15in accross the tyre is 14in. Very confusing. It is because the engine is not revving high at 50 and the clutch is not slipping or any of the other things you mention and the acceleration is fine that I thought of changing from the standard ...
by donalchanner
Sun Jan 20, 2013 12:08 pm
Forum: Mechanical
Topic: Differential Change
Replies: 16
Views: 1957

Re: Differential Change

Hi, The wheels shown in the picture measure 15in in diameter. I have checked again. I dont understand why the pickup will not go above 50mph. There is no restriction on the pedal - it is not even fully depressed at 50. What else can I try? Donal
by donalchanner
Sat Jan 19, 2013 5:45 pm
Forum: Mechanical
Topic: Differential Change
Replies: 16
Views: 1957

Re: Differential Change

Hi again. The diff is 4.55 and the wheels are 15in diameter without the tyres and there is no restrictor. Has any one some useful advice about what increase in top speed might be achieved if the revs are the same? Or what effect the change would have on the speedo reading. Donal
by donalchanner
Tue Jan 15, 2013 7:16 pm
Forum: Mechanical
Topic: Differential Change
Replies: 16
Views: 1957

Differential Change

Hi, I have a pickup, which used to be a van, which has a reconditioned engine. It runs quickly up to 55mph but feels as if there is plenty more power available.I had an ex telephone engineers van years ago which would do 70.mph. I am thinking of changing the differential which I assume is 4.55 for a...