G-16 Fuel pump problem

[Dave in VA]

Synthetic would be the same. 1qt, 10w30. The pulse line needs to be pulled tight to the pump, straight, with no dips or extra tubing.

[longboard1]

That info. change any opinions or spark any other ideas?

[Golf cart guy]

Originally Posted by longboard1

I'm sorry, The cart DOES start the following day, but Shortly runs out of fuel, Usually stranding me halfway down the driveway. When I flip up the seat, the filter is empty and no go. Pull pulse tube, blow until clear, re-attach and runs fine. Gets a yearly tune-up including plug & oil change. Not sure on valve lash as I pay someone local to do it the last couple years and it's never been discussed.

It's due for svc now, so synthetic is easy to do---what weight/spec?

The buggy was running like **** for a whole summer, but never had this problem ----took it to a guy---he said the unit that gives it spark was loose and way out of clearance spec. He repaired that, tuned it up, adjusted gov. to give me some more top end and regular tune up stuff. Have had this problem ever since.

If the coil was loose it would be a mess right now. Sounds like you took it to the wrong guy for sure

[longboard1]

Not sure how his repairing the coil issue makes him the wrong guy or relates to the pulse tube, but thanks.

[spriddle]

Check your gas cap. It may not be venting correctly.

[longboard1]

Update;

Finally got a round tuit. Took off the air box to get to the pulse tube and found the tube itself was very soft and swelled up on the engine side. For about eight inches. Normal diameter and hardness at fuel pump. I suspect heat and some exposure to oil caused the swelling and it was collapsing due to the deterioration. Oil looked just slightly over full.

Replaced the vacuum line. Changed oil. Going to test tonight.

Perhaps fuel line would be better for a pulse tube as it would resist swelling when exposed to oil and heat ?

Anyway, thanks for the assist everyone! Fingers crossed.