Dennis, I didn't know there was a check valve in the filter. Since I have 2 Racor filters I put a tee and gauge in the fuel line after the filters. I have not noticed the gauge acting strange. But then I don't look at it often. You might try relocating the gauge. I would think that once the engine is not longer sucking fuel the gauge should go back to zero.
Douglas Mountjoy 1988 C&C LF 39 Mexico at large 1984 Sabre 34 Port Orchard, WA On Fri, Apr 26, 2024, 08:54 Dennis C. via CnC-List <cnc-list@cnc-list.com> wrote: > Touche' has a Racor 500MA with the Racor vacuum gauge in place of the > T-handle. See: > > > https://drive.google.com/file/d/1Pe9zcl-E0aQRl-Cu9cW8VqpeLEo9Gek3/view?usp=sharing > > During a cruise to the Mississippi Coast last week, the needle sneaked > into the red. It's done this before. Bleeding it by lifting the little > rubber seal on top will reset it to the white zone. It gradually sneaks > back into the red zone. I don't believe the element is becoming blinded. > > However, I decided to change the element anyway after only 50 hours. The > element looked very clean. > > The gauge is still behaving the same with the brand new element. > > I have no reason to suspect pluggage in the pickup tube. Touche's fuel > has always been very, very clean. But I'll check it anyway. > > Internet research has pointed me towards the ball check valve in the > Racor. Here's a schematic: > > > https://www.maesco.com/products/racor/r_tbn_intro/r_tbn_assm500ma/r_tbn_assm500ma.html > > My question - has any lister taken a 500MA apart and examined the check > valve? If so, what did you find? > > I will be on the boat next week exploring the fuel system and all the > usual suspect causes upstream of the Racor. > > -- > Dennis C. > Touche' 35-1 #83 > Mandeville, LA > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
