Mgb gt jerking on overun when hot

MGB discussion board for Roadster and GT classic car models.
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SCIVE01
Posts: 1
Joined: Sun Jul 30, 2017 6:12 pm

Mgb gt jerking on overun when hot

Post by SCIVE01 » Sun Jul 30, 2017 6:47 pm

Hi
I am new to this forum as I thought I might get an answer to my problem. I have a nice 76 MGB GT which I have owned for 18mths. I have recently had a problem when the engine is hot eg after a fast run on the motorway when slowing down from speed with my foot off the accelerator in any gear using the engine as a brake, the car jerks back and forth as if the brakes were being applied and released, to add to this I have noticed that if the overdrive is switched on and I am in 3rd or 4th the problem disappears. As soon as I switch the OD off the problem returns. If in 1st or 2nd gear the problem is there all the time when on the overrun. Would appreciate any ideas as to why this could be happening.

SCIVE01

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