cambelt and pump belt snapped.got head repaired set all back up with pins and by the book,got it started, quite on tick over but when rves pick up sounds like bottom end gone.people say pump timing is out.

daz, May 2006

You need a dial gauge to set the pump timing back up. There's a plug on the pump which you remove, and attach the dial gauge. You then turn the engine over manually and use the fluctuations on the dial gauge to work out the timing. Adjustment IIRC is by rotating the pump body.
The procedure is explained in detail in the Haynes manual. I can look it up and give you the details here if you like.

DP, May 2006