General Information > Troubleshooting
More surging issues
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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