Pressurized Tank

[kbertsch]

I have an evenrude pressurized gas tank I am trying to take the two washers out of the connection from the tank to the motor. I have been pushing down on the spring with a nail and trying to scrape out the washers with a knife but can't seem to get them out. I dont want to ruin anything so I stopped trying. Are there any tricks to doing this?

 

[steelespike]

Re: Pressurized Tank

Its been many years since I did one but it seems you use something like a small button hook.You may be able to fashion one out of a fine stiff wire.

 

[freddyray21]

Re: Pressurized Tank

a dental pic works well.

 

[phineas]

Re: Pressurized Tank

i tapped the brass insert out from the backside with a thin brass punch, i took out the hose barbs, and put the punch in the hole and put the coupler over a socket and carefully tapped them out and put the o rings in and then squeezed them back together with my small vise. I found it simple and less damaging then trying to hold one tool to hold the plunger in the center down while trying to scrape out a hardened and stuck old o ring

 

[kbertsch]

Re: Pressurized Tank

Thanks guys for the info. I'll try it all till I get them out.

 

[Sea18Horse]

Re: Pressurized Tank

Here's a service bulletin from Evinrude about the tools to change the orings. Of course it doesn't take into account 50+ years of age. It worked fine on mine but I'm sure some orings have not aged as gracefully. If your orings are petrified and vulcanized inside the fitting then Phineas' solution is probably best.

Cheers..................Todd

 

[samo_ott]

Re: Pressurized Tank

What timing. I just changed 2 of those buggers tonight. I put the connector in a soft wood faced vice facing up with a bright light overhead. Then used 2 dental tools. One is a pic that I held the plunger down with and the other was a small pic. But I alternated with a straight pic also. The O rings were hardened but only took 5-10 min each to get out. 1 broke up in pieces and one came out whole. It took a tad longer to get the 4 or so pieces out. Then pinch the new ones and pop em back in. I have already used the tank and it worked great.

I bought my cheap dental set at Princess Auto in Canada but imagine they are everywhere.

 

[wildmaninal]

Re: Pressurized Tank

I just got through digging the o rings out of mine with a small precision flat head screwdriver. I stuck a small nail down inside to hold the plunger down. I figure it will be harder to get them back in.

I wasn't going to worry about the quick connect until I read this thread, so I said what the heck I can at least get the o rings out. I am planning on lake testing the motor with the lines ran straight into the motor, unless I can cough up 2 o rings.

Not trying to hijack but what size o rings are those?

 

[samo_ott]

Re: Pressurized Tank

They go in pretty easy... Just drop a few drops of oil in there first. Then pinch one side firmly and pop em in.

I believe they are a special fat sized O ring, just like the shifter bushing. I get mine at the dealer for a couple of bucks each.

 

[wildmaninal]

Re: Pressurized Tank

Thanks Samo. I was going to try my cousin who claims he has any and every size o ring you can think of but I might just have to take the trip to the local marina or whatever.

 

[samo_ott]

Re: Pressurized Tank

It'd be real tough to find one to stick in there unless you had an original to compare it to. Then you might be able to do it.

 

[F_R]

Re: Pressurized Tank

If the old ones are petrified it is easier to take it apart. If it is an early style with removeable hose barbs, it is easy. If it does not have the removeable barbs (most don't), sacrifice a 5/64" allen wrench (long series) to make a driver tool. Stick the wrench in the barb till it hits bottom and mark it about 1/2" longer. Then cut it off at the mark. You now have one honkin' tough punch that will drive the bushing out without bending.

 

[kbertsch]

Re: Pressurized Tank

UPDATE. I tried the dental tool route (my wife is a Dental Hygienist). I guess she will find out one might be missing one of these days. Anyway, it worked great. I put the connector in a vice and held the plunger down with a small nail and worked the o-ring out with the dental tool. Both came out in pieces and it did take some time but it did work. Thanks to all you replied.

 

[rjezuit]

Re: Pressurized Tank

A small steel crochet hook works also. You MUST use the OMC O rings. The standard english , and even metric are off enough where they will not work. They will fit in, but will leak or be so tight you cannot get the connector to mate. Rick

 

[58CorrySuburban]

Re: Pressurized Tank

I ran into some petrified packing rings for the course adjustment during a carb rebuild on my 58 evinrude.

I must have been the first one in the last 50 years that decided to take the old ones out before I put the new ones in. There were 3 sets of compressed and petrified packing rings and washers.

I used my disection kit from biology lab and a tiny flat head. Now I know why 1/2 the threading on the brass sleeve was exposed.