Cleaned my VST Tank... wanna see???

[pstephens46]

As Yam said you can monitor fuel pressure at the rail with a guage. It screws on. Run with cowl off to watch.

Did you check injector screens and F filter? More potential bottlenecks.

Rodbolt mentioning checking lp pumps with the old eyeballs once before.
Unscrew the clear plastic bowl on the engine fuel filter. Dump it out and reinstall.
Crank engine. It should refill rapidly. Maybe 10-15 secs at most. I should put a stopwatch on mine to check. Let me know if you want the exact timing. Cowl is in sun right now and about 300 degrees.....

[slads5874974]

As Yam said you can monitor fuel pressure at the rail with a guage. It screws on. Run with cowl off to watch.

Did you check injector screens and F filter? More potential bottlenecks.

Rodbolt mentioning checking lp pumps with the old eyeballs once before.
Unscrew the clear plastic bowl on the engine fuel filter. Dump it out and reinstall.
Crank engine. It should refill rapidly. Maybe 10-15 secs at most. I should put a stopwatch on mine to check. Let me know if you want the exact timing. Cowl is in sun right now and about 300 degrees.....

Changed the F filter with the VST cleaning. all set there. Brandy new.

I will perform the fuel test this week with the fuel bowl. Definitely will give that try this week. THANKS!!

[pstephens46]

If I am wrong, I will be corrected. Key on rail pressure should be close to 45 psi.

Running will drop to 38-40...

[slads5874974]

If I am wrong, I will be corrected. Key on rail pressure should be close to 45 psi.

Running will drop to 38-40...

Yup.

Per the service manual:

45psi

and after 3 seconds...

37.5psi running.


I am heading to the marina Friday to do some work, crossing my fingers I get some good results.

[slads5874974]

UPDATE....

Both Fuel Pumps replaced. Motor is running like a gem!

Looking forward to the next mystery.

Thanks everyone.

[pstephens46]

Assuming both low pressure pumps.