1985 Trojan - 10 meter convertible fuel gage erratic

[mhandley]

My fuel gage is erratic as hell when RPMs above idle.

When at idle, I trust the reading.

I believe the item I need to replace is the fuel sender?

A very low cost Delphi unit?

I have the model with a 250 gallon tank under the aft deck.

Is it a simple little item, or does it go down to the bottom of the tank, etc.

Is this a tricky replacement? seems easy, but very little on a boat ever is.

Thanks

[dollarbill]

Check the ground first before replacing any sending unit. I had the same issue - turned out to be a slipping connection of the grounding wire to the sending unit.

Not sure if that is your cause but I would check the simplest thing first and you may have already.