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tank sending unit

Unread postby nationalmoparts on Tue Jul 12, 2016 3:38 pm

Hi All, Im working on a 75 m500 with a 440 engine. Im in need of a gas tank sending unit. Are theses beasts available? The one i took out was bent up, and had a co2 gun cartridge as a float, so i dont think its right. Does anyone have a pic of what the sending unit looks like?

Thanks,
Andy
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Re: tank sending unit

Unread postby KB2CRK on Tue Jul 12, 2016 3:47 pm

77 Travco dropped his tank and replaced the sender. Here is a link to the thread. viewtopic.php?f=16&t=370
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Re: tank sending unit

Unread postby KB2CRK on Tue Jul 12, 2016 3:47 pm

77 Travco dropped his tank and replaced the sender. Here is a link to the thread. viewtopic.php?f=16&t=370
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Re: tank sending unit

Unread postby 77Travco on Wed Jul 13, 2016 12:23 pm

Be sure to read the whole thread... the Isspro unit that I installed the 2nd time around is still working very well for me.
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Re: tank sending unit

Unread postby nationalmoparts on Fri Jul 15, 2016 7:47 am

Thanks for the replies, it helps me out alot!

Andy
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Re: tank sending unit

Unread postby 77Travco on Sat Jul 16, 2016 9:47 am

nationalmoparts wrote:Thanks for the replies, it helps me out alot!

Andy

Let us know how it works out for you.
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Re: tank sending unit

Unread postby Zed on Sat Aug 20, 2016 3:50 pm

Travco77, in that linked thread you say that you never got the ISSPRO R8927 unit to read correctly at the dash. Did you solve this problem? Thanks.
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Re: tank sending unit

Unread postby 77Travco on Mon Aug 22, 2016 11:03 am

Zed wrote:Travco77, in that linked thread you say that you never got the ISSPRO R8927 unit to read correctly at the dash. Did you solve this problem? Thanks.

The fuel gauge reads just under the full mark when the tank is filled all the way up. I know that when it reads empty there is actually just under 1/4 tank of fuel so I figure it's like a safety buffer.
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Re: tank sending unit

Unread postby Zed on Tue Aug 23, 2016 12:01 pm

I'm wondering if some sort of resistor put in line with the gauge would solve this issue, looking into it since I think I need a new sender. I'll let you know if I find anything. Something like this seems more likely to work if the play was on the other end, ie if it read full until it got to a 1/2 tank then it dropped to 3/4ths.
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Re: tank sending unit

Unread postby 77Travco on Wed Aug 24, 2016 7:16 am

The resistance is not the issue. It's more to do with setting up the universal sending unit in the first place. Be sure to follow the instructions exactly when measuring and cutting the float rod.
I tried to "out smart" the instructions in order to build in a buffer zone when reading empty but I now think that they may have done that too.
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