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KMD
03-20-2011, 05:00 PM
Do you think these sending units will work? I have a 1997 22WA. getting new tanks made and want to put in new senders. The price seems right.

http://www.aircraftspruce.com/catalog/eppages/rochesterSender.php

Esmeralda
03-20-2011, 08:20 PM
http://www.rochester-gauges.be/

My new tanks from Florida Marine Tanks came with Rochesters that look identical to the 6700 series on this sheet (I have pulled the senders out of the tanks while trouble shooting my dash gauge).

Go to Products, Magnetic Gauge, 6700.

The "magnetic" is just a fluid dial that is attached to the top of the sender that allows you to read the level manually, in addition to the dash gauge. Obviously, to see that dial, you need to remove the hatch over the tank. It is a backup.

The bottom of the spec sheet provided information needed to order including tank depth.

KMD
03-21-2011, 08:06 AM
I searched a couple posts and alot of people have gotten the 8341-A7000 series senders. The only place I can see you can get them from is E-components. I found this site for these and its about half the price. I dont mind spending the extra money for the proper senders if indeed these wont work. It says for marine use, but I just wanted to get some more opinions before I ordered them.
Thanks

Reelhappy
03-21-2011, 08:44 AM
I had Rochester senders in my boat for 6 years before any issue and my experience with senders is that this is all you can expect from any of them. Joe

redneck
03-21-2011, 09:13 AM
Are they the right resistance range?



Serenity
07 246 WA
5.7 EFI Crusader

Kurt
03-21-2011, 09:26 AM
I searched a couple posts and alot of people have gotten the 8341-A7000 series senders. The only place I can see you can get them from is E-components. I found this site for these and its about half the price. I dont mind spending the extra money for the proper senders if indeed these wont work. It says for marine use, but I just wanted to get some more opinions before I ordered them.
Thanks
Those senders have the wrong resistance range for a boat. The spec on the senders you linked to says they are 0 to 90 Ohms. Your boat needs senders with a 240 (E) to 33 (F) Ohm range. It appears that the sender number you need would be Rochester: 8341-A7000 (not 8341-R7090). They make a Rough Rider series which is toughened for the marine environment. The "A", "L" or "R" before the last 4 digits has to do with the float shape...

Apparently, 0 - 90 Ohms is a standard range for aircraft - since these come from an aircraft supply place.

Also, make sure you get gaskets rated for Ethanol adulterated gasoline.

Standard sender: http://www.rochestergauges.com/Pages/PDFs/8341_70.pdf

Rough Rider sender: http://www.rochestergauges.com/Pages/PDFs/8341_Rough_Rider.pdf

Arm cutoff length instructions: http://www.rochestergauges.com/Pages/PDFs/DS_1325.pdf

Installation instructions: http://www.rochestergauges.com/Pages/PDFs/MS_514_inst.pdf

Wiring connections: http://www.rochestergauges.com/Pages/PDFs/DS_953.pdf

KMD
03-21-2011, 09:51 AM
Thanks Kurt,
Didnt even think about the resistance, I guess unless i also got aircraft fuel guages I would not be able to read the correct fuel level. I whink I will stick with the correct guage when I order. thanks again
KMD