Fuel Sender Reads 1/4 full when Empty ?

[Rake722]

Hi All.

I have a capri 1850 SS 1994 and the OEM sender went bad so I replaced it with a universal one from Osculati.

https://www.osculati.com/en/11572-27.160.00/fuel-level-indicator

I adjusted the depth to be the same or simillar to the OEM one by removing the lower section and attaching the rod to the upper section approximating the original.

I then cut the rod so that its length also approximated the original and put a small bend in the rod like the original and then installed with the float pointing port side like the OEM.

It seems to read ok above 1/4 but I had to empty the fuel from the tank for another reason and saw the gauge shows 1/4 with no fuel in.

Hmm just a thought but if I fitted the float assembly too low then the float might be resting at the bottom of the tank but not fully in the down (empty) position

Would this be most likely ?

if this is the case I guess I could make the rod shorter allowing more downward travel or even put a bend in it making it higher ?

Thanks

Ron

 

[Bt Doctur]

spend the money on a reed sensor, no adjustment needed

 

[Scott Danforth]

Bend the arm to allow the rheostat sweeper to go lower.

 

[dubs283]

fitted the float assembly too low then the float might be resting at the bottom of the tank but not fully in the down (empty) position...bend in it making it higher ?

if this were the case the sender would not travel all the way up to read full, you'd only be getting between 1/4 and 3/4 on the gauge

do not bend the arm, most sender manufacturers instructions clearly state you should not do this

remove the sender and operate by hand while watching the gauge, make sure the sender and gauge read full and empty

did you clock the unit correctly? the holes are offset so the unit can only be clocked in one position, this is to prevent the sender arm from hitting the side or a baffle in the tank

 

[Rake722]

if this were the case the sender would not travel all the way up to read full, you'd only be getting between 1/4 and 3/4 on the gauge

do not bend the arm, most sender manufacturers instructions clearly state you should not do this

remove the sender and operate by hand while watching the gauge, make sure the sender and gauge read full and empty

did you clock the unit correctly? the holes are offset so the unit can only be clocked in one position, this is to prevent the sender arm from hitting the side or a baffle in the tank

Well spotted - If I bend it it may affect the full position.

Im going to pull the sender - check against the gauge, then install it with a zip tie holding it in the full down position - empty and see if I hit the bottom of the tank before the plate seats on the tank. Then I will measure as per the instructions or adjust the length of the rod for the float till its right.

Boat is now on a greek island and will be in the water making it tough to remove the fuel. Electrical connections will be taped before removing the sender,.