New guy with 743

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dougn

Member
Joined
Sep 7, 2014
Messages
7
Hi all. Just wanted to say hi to everyone. Bought the 743 new in '87 and its been one of the best machines we ever had. I'm not very good with computers and can't find what I need. I need part number for fuel tank grommets. Thanks.
 

reed2022

Well-known member
Joined
Jul 12, 2014
Messages
83
What grommet are you talking about. My book shows to grommets one is fuel sensor wire and the other is for fuel lines. Go to Bobcat and parts and type in your model number there will be a parts drawing come up. Search for fuel system and find you grommet number.
 

reed2022

Well-known member
Joined
Jul 12, 2014
Messages
83
What grommet are you talking about. My book shows to grommets one is fuel sensor wire and the other is for fuel lines. Go to Bobcat and parts and type in your model number there will be a parts drawing come up. Search for fuel system and find you grommet number.
Explain exactly which tank grommets you are talking about if you can't get to Bobcat and I will try to get numbers.
 
Joined
Aug 2, 2014
Messages
19
thanks, yeah I did manage to find them today. they are the only two grommets on the tank, one for supply line and one for return line. a steel 90 fitting fits into it and the two hoses conect to them.
If you are replacing the fuel pickup get the clear line, filter and clips from the dealer, regular fuel line and hose clamps will not fit.
 
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dougn

Member
Joined
Sep 7, 2014
Messages
7
If you are replacing the fuel pickup get the clear line, filter and clips from the dealer, regular fuel line and hose clamps will not fit.
yeah i am replacing the fuel lines. Believe it or not regular lines do work, I did it once before in'02. It's hard to do but It will work. When I took it apart in '02 it had regular lines on it. I've never had any luck with clear line and diesel.
 

[email protected]

Well-known member
Joined
Feb 23, 2011
Messages
878
yeah i am replacing the fuel lines. Believe it or not regular lines do work, I did it once before in'02. It's hard to do but It will work. When I took it apart in '02 it had regular lines on it. I've never had any luck with clear line and diesel.
not the fuel lines, the pickup tube that is inside the tank. they eventually rot. happens in every bobcat eventually.
 
Joined
Aug 2, 2014
Messages
19
not the fuel lines, the pickup tube that is inside the tank. they eventually rot. happens in every bobcat eventually.
Yes, the pickup line was replaced in the past with a regular line with no clamp which fell off and had to be fished out of the tank. You have to put the grommet in before the steel fitting and it's just a whole lot easier using the stuff from Bobcat, all of which came to about $20.
 
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dougn

Member
Joined
Sep 7, 2014
Messages
7
Yes, the pickup line was replaced in the past with a regular line with no clamp which fell off and had to be fished out of the tank. You have to put the grommet in before the steel fitting and it's just a whole lot easier using the stuff from Bobcat, all of which came to about $20.
Yes tom, i'm sorry, that's what I meant the pickup lines. You're right William I did replace them before with no clamps, but I did not have to fish them out. When I replaced them back in '02 believe it or not that's how it was from factory, regular fuel lines witn no clamps, not a clear hose. And yes you are absolutely right william you have to put the grommet in first. And it's not that much harder to use regular hose, especialy when I have regular hose in stock. All I did was put pick-up line in without screen and grab it through the sending unit hole with my 12" long needle nose, pull it through the hole and put the screen on and drop it back in. Plus taking out sending unit is good to do anyway. Because most of us know that if you don't keep a diesel tank full when you don't use it every day it gets condensation in the tank and the steel on sending unit gets rusted and flakes off and clogs the screen over time.
 
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dougn

Member
Joined
Sep 7, 2014
Messages
7
Yes tom, i'm sorry, that's what I meant the pickup lines. You're right William I did replace them before with no clamps, but I did not have to fish them out. When I replaced them back in '02 believe it or not that's how it was from factory, regular fuel lines witn no clamps, not a clear hose. And yes you are absolutely right william you have to put the grommet in first. And it's not that much harder to use regular hose, especialy when I have regular hose in stock. All I did was put pick-up line in without screen and grab it through the sending unit hole with my 12" long needle nose, pull it through the hole and put the screen on and drop it back in. Plus taking out sending unit is good to do anyway. Because most of us know that if you don't keep a diesel tank full when you don't use it every day it gets condensation in the tank and the steel on sending unit gets rusted and flakes off and clogs the screen over time.
What I meant about being a good idea taking sending unit out was to clean it up with scotchbright to get any rust off
 

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