YM2210 injectors, fuel pump, problem??

[thepumpguysc]

Yeah, those GASKETS should be replaced every so often.. u wouldn't believe some of the condition I get them in..
Had 1 fella GRIND DOWN a copper penny & drill a hole thru it.!!! No kidding..
I get them in double & triple stacked..
I sure hope the gasket is/was all it is..

 

[Fire260]

Yeah, those GASKETS should be replaced every so often.. u wouldn't believe some of the condition I get them in..
Had 1 fella GRIND DOWN a copper penny & drill a hole thru it.!!! No kidding..
I get them in double & triple stacked..
I sure hope the gasket is/was all it is..

I just got some new ones, so i will put a new one on tonight and see but im sure this is it. I bet you see all kinds of crazy stuff..
Thanks again for all the help!! :drink:

 

[clemsonfor]

Remember only tighten your fuel cap tight enough to not vibrate off

 

[HoyeTractor]

Those bleeders originally used a plastic ring. We always had problems with them leaking so we started to use orings there (at the suggestion of a long time customer) a couple years ago (I need to fix the website description & picture). I have not heard of a single problem reported since. The key though is to just not overtighten. You just snug them up. If you crank down on them like you would if they were a copper washer then the oring will just mash out the side and can leak. Just snug them up like any other oring fitting and it will never leak.

If it was a pressurized system then that would be different and would certainly need something like a copper crush washer. This is just gravity fed.

Orings are very commonly used on fuel bleeder screws.
diesel bleeder screw - Bing images

 

[atsah]

Those bleeders originally used a plastic ring. We always had problems with them leaking so we started to use orings there (at the suggestion of a long time customer) a couple years ago (I need to fix the website description & picture). I have not heard of a single problem reported since. The key though is to just not overtighten. You just snug them up. If you crank down on them like you would if they were a copper washer then the oring will just mash out the side and can leak. Just snug them up like any other oring fitting and it will never leak.

If it was a pressurized system then that would be different and would certainly need something like a copper crush washer. This is just gravity fed.

Over tightening is my middle name.. Why they would go from plastic to rubber makes no sense to me.. A simple crush washer would have been a better idea since it doesn't matter if you crank them a bit.. One persons snug is another mans loose..

 

[HoyeTractor]

A simple crush washer would have been a better idea since it doesn't matter if you crank them a bit

Crush washers, at least in my experience, can be finicky. Especially if you loosen and tighten them much (like a bleeder screw).

 

[thepumpguysc]

Aaron.. not to bust your hump BUT.. those Oring uses have a groove for the oring to sit & seal in..
The bleed screw on the inlet banjo bolt doesn't, its just a FLAT surface..
The "plastic" seal was purely for a manufacturing cost standpoint..{cheap}

 

[HoyeTractor]

I don't claim to be an expert by any means and I'm not arguing with what you are saying at all. I do know that we had a lot of problems with the plastic washers (maybe it was just a bad/old batch but they were trouble) and had no problems that I can recall since switching to orings.

I will investigate to see if I can find a better solution though.

I'll have to take another look tomorrow but I thought those bleeder bolts had a recessed groove also.

You can kind of see a recess below

BANJO BOLT ASSBY: Yanmar Tractor Parts

 

[clemsonfor]

Over tightening is my middle name.. Why they would go from plastic to rubber makes no sense to me.. A simple crush washer would have been a better idea since it doesn't matter if you crank them a bit.. One persons snug is another mans loose..

Yanmar didn't. Aaron said "we started to use orings" referring to Hoye Tractor Co. Which is one of our main supply source for parts for our old yanmars. Aaron works at Hoye , so when he says that he is referring to his company there.

 

[atsah]

Yanmar didn't. Aaron said "we started to use orings" referring to Hoye Tractor Co. Which is one of our main supply source for parts for our old yanmars. Aaron works at Hoye , so when he says that he is referring to his company there.

Got it..