Acceleration chugs/slows on slight incline

[DF]

Hi folks. I have an issue with my 73 westy. This summer I had a 2000cc rebuilt motor put in and recently had some valve adjustments after 600 miles. I recently notice I can only go up to 10 mph the most on moderately sloped hills and 5mph on steep hills. The motor tends to "buck" as if something is clogged.

I can pickup adequate speeds on flats and down hills.

I know vdubs don't handle well on hills, but i was able to maintain a steady 40-45 mph on hills. The carb is about 4 yrs old and it has an electric fuel pump.

Any ideas where to start.. I did some googling and some articles mentioned the accelerator pump. I don't even know how to locate that pump.

Any advice would be helpful. I would hate to drive her in that condition or leave her at home for the Vibes.

Thannks.

[seany]

Not a VW owner, but this sounds like the classic symptoms of needing to replace the fuel filter (on pretty much any vehicle). I'd start there - if that doesn't solve the problem, then dig deeper.

Good luck!

[DF]

The fuel filter was my hunch, but if that's the case, shouldn't I have the relatively the same acceleration issue on flat roads as well?

[DF]

Ok. So someone on lovemybus.com mentioned checking the
distributor and ignition timing..will do that as well as the filter change.

Will keep you posted as to the results.