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More surging issues

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srgtlord:
So after another extended trip on the highway the old 85 golf is experiencing surging issues at part throttle. At first I thought the pump bolts loosened up but I checked all of them and they were fine. I have 2 educated guesses for this one on what the issue is

1. Timing belt
The belt probably has over 65,000 miles on it by now and after popping the cover off I see oil on the belt

2. The injection pump
I noticed the pump was leaking again after 10 years

Ill do the timing belt job and report back

fatmobile:
Which bolts did you check?
 The ones holding the mounting bracket to the block?

srgtlord:
I checked the bolts holding the pump to the mounting bracket. Hmm I might have to check the ones holding the bracket to the block

fatmobile:
yep,
and they are hard to get to.
 Those 2 bolts are also used to adjust where the belt rides on the sprocket.

 I always blue locktite them after the belt is riding in the right place.

When they are loose you might also feel a vibration on the accelerator/your foot.

Rabbit79:

--- Quote from: fatmobile on November 23, 2022, 12:39:12 am ---Which bolts did you check?
 The ones holding the mounting bracket to the block?

--- End quote ---
Seconded. It's happened to me before.

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