Author Topic: replacement manual petcock pn#  (Read 1132 times)

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Offline m in sc

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Re: replacement manual petcock pn#
« Reply #25 on: September 05, 2018, 02:56:50 am »
haha yes! awesome. thats my kind of fix (except it seems hard to get to). love it though  :great:

Offline connieklr

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Re: replacement manual petcock pn#
« Reply #26 on: September 05, 2018, 10:36:14 am »
Can't tell from the photo.
Is the petcock your using shorter that the one I purchased?
Mine is 1.55" {bottom of the base to centerline of the nipple}

Ride safe, Ted

Dunno. I can check that later today.
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Offline connieklr

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Re: replacement manual petcock pn#
« Reply #27 on: September 05, 2018, 03:16:37 pm »
Can't tell from the photo.
Is the petcock your using shorter that the one I purchased?
Mine is 1.55" {bottom of the base to centerline of the nipple}

Ride safe, Ted

Dunno. I can check that later today.

Mine is 1.5106" from the flat mounting surface to the center line of the nipple.
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Offline connieklr

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Re: replacement manual petcock pn#
« Reply #28 on: September 05, 2018, 03:22:24 pm »
haha yes! awesome. thats my kind of fix (except it seems hard to get to). love it though  :great:

Assuming that it clears the valve cover, it should be easier to get to since the lever actually sits well below the lip of the tank.

I'm playing with it on a rusted through '86 tank I had sitting around. Once I'm done whacking on it, I'll pull my '95 tank off and see how it fits up.

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Offline m in sc

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Re: replacement manual petcock pn#
« Reply #29 on: September 05, 2018, 04:09:05 pm »
my assumption was that since the new one has the lever pointing up it might be more difficult. def one of those have to test on the bike things. i think you found a winner.

Offline connieklr

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Re: replacement manual petcock pn#
« Reply #30 on: September 05, 2018, 04:24:20 pm »
my assumption was that since the new one has the lever pointing up it might be more difficult. def one of those have to test on the bike things. i think you found a winner.

Should have rotated the lever straight down so it was an apple-to-apples comparison, but wasn't thinking "comparisons" when I took the initial shot.

Empirical testing to follow (prolly next week) to see that it flows enough fuel. Will dump, and time a specific quantity into a graduated container and compare the two. If "okay," will stick it on the bike and see how it does. After I am done whacking the block, I'll lengthen the MAIN standpipe to match the height of the OEM petcock.
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Offline Jim Snyder

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Re: replacement manual petcock pn#
« Reply #31 on: September 06, 2018, 11:14:42 am »
You could have saved all of this work by ordering a Pingel valve.
"Some days you're the windshield, and some days you're the bug" Get used to it cause thats life !!!

Offline connie_rider

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Re: replacement manual petcock pn#
« Reply #32 on: September 06, 2018, 11:47:24 am »
Agreed.
   But someone sed it couldn't be done with an existing/cheap petcock, so we have to try...  >:D

Ride safe, Ted
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Offline connieklr

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Re: replacement manual petcock pn#
« Reply #33 on: September 06, 2018, 08:47:20 pm »
You could have saved all of this work by ordering a Pingel valve.

Work? Surely you jest. Messin' with this stuff is fun, and a heck of a lot less expensive more frugal than going the Pingel route.



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Offline m in sc

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Re: replacement manual petcock pn#
« Reply #34 on: September 07, 2018, 11:45:36 am »
 :great: my gf calls that 'man glitter' everytime i do soem mill or lathe work.

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Re: replacement manual petcock pn#
« Reply #35 on: September 07, 2018, 03:16:02 pm »
:great: my gf calls that 'man glitter' everytime i do soem mill or lathe work.

The lathe isn't too bad as the swarf usually just falls and lays in the pan. The mill is a different story as its stuff goes all over hell and creation. Hate it. Getting stuff out of the T-slots is a royal pain. Someone makes slot covers to help keep it out, and may need to go looking... or just cover the vacant area of the table with rags.

Not a priority for the day. Time to whack the grass.................
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Offline Bob_C_CT

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Re: replacement manual petcock pn#
« Reply #36 on: September 07, 2018, 04:17:44 pm »
Guy, cut two pieces of plywood/lexan that cover both sides of the table up to the vise and attach a couple of pieces of scrap wood on the bottom of the plywood that fit in one of the tee slots and another in the end pocket, easy peasy and keeps the chips out of the slots and you can place cutters/workpieces on the plywood without worrying about chipping/dinging them on the bed.
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Offline m in sc

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Re: replacement manual petcock pn#
« Reply #37 on: September 07, 2018, 04:48:11 pm »
my shop vac has a thin enough attachment to get in there and clean out the t slots on the bridgeport, thankfully. on my vintage pratt and whitney the t slots are so small (and theres only 1) thats not an issue, small price to get stuff done.  on an old ycm supermax we have here, we made a chip catch tray around the bed as its so big was hard to get around it to clean the back. 

one thing ive done also is use a mag base and a clamp to hold the vac nozzle next to the tool holder down to catch them as they were coming off the endmill. like a router sawdust  reclaimer. it works.
« Last Edit: September 07, 2018, 04:51:28 pm by m in sc »

Offline connieklr

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Re: replacement manual petcock pn#
« Reply #38 on: September 07, 2018, 09:09:41 pm »
Yeah, I know there is numerous ways to solve the issue..... and I'll get around to doing something in the near future. Only seem to think about it about the time I throw the switch in the midst of another crazy project, or shortly after when all the "stuff" has settled into place.
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Offline connie_rider

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Re: replacement manual petcock pn#
« Reply #39 on: September 08, 2018, 03:11:50 pm »
Ok, I like the mess.
Did the petcock work?

Ted
« Last Edit: September 09, 2018, 11:59:29 am by connie_rider »
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Offline connieklr

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Re: replacement manual petcock pn#
« Reply #40 on: September 09, 2018, 11:10:58 am »
Ok, I like themess.
Did the petcock work?

Ted

I dunno. Still a work in progress. Had yard work to get done + a small welding job came in, so I was side tracked.

Raining like crazy now and looks like we need to prep for another Isabel-type event coming up later in the week with Florence.
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Offline MAN OF BLUES

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Re: replacement manual petcock pn#
« Reply #41 on: September 09, 2018, 08:11:50 pm »


The lathe isn't too bad as the swarf usually just falls and lays in the pan. The mill is a different story as its stuff goes all over hell and creation. Hate it. Getting stuff out of the T-slots is a royal pain. Someone makes slot covers to help keep it out, and may need to go looking... or just cover the vacant area of the table with rags.

Not a priority for the day. Time to whack the grass.................

Hope you make it thru the storm un touched.... we all know how much fun those are...(NOT>>>>)
by lotsa beer.

as for those pesky Tee Slots.... no rags on table allowed... danger, danger, danger....
(I was blowing off some chips once, with an air hose, while mill was running... and slipped up and blew a shop rag across to the tool.... it snagged it up and began whipping crap all over the place... I had to jump back and wait to hit the off switch, because a T handle just missed my heads.... and 'chips were a flyin'..

I found stuffing the slots with that 1" square foam weather stripping stuff worked wonders... I think you may know a place that has a bunch of it... and they throw more away than they actually use... (the trash dumpster always had 4 foot sections overflowing out back...) :rotflmao: :rotflmao: :great:

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Offline connieklr

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Re: replacement manual petcock pn#
« Reply #42 on: September 09, 2018, 08:56:49 pm »


The lathe isn't too bad as the swarf usually just falls and lays in the pan. The mill is a different story as its stuff goes all over hell and creation. Hate it. Getting stuff out of the T-slots is a royal pain. Someone makes slot covers to help keep it out, and may need to go looking... or just cover the vacant area of the table with rags.

Not a priority for the day. Time to whack the grass.................

Hope you make it thru the storm un touched.... we all know how much fun those are...(NOT>>>>)
by lotsa beer.

as for those pesky Tee Slots.... no rags on table allowed... danger, danger, danger....
(I was blowing off some chips once, with an air hose, while mill was running... and slipped up and blew a shop rag across to the tool.... it snagged it up and began whipping crap all over the place... I had to jump back and wait to hit the off switch, because a T handle just missed my heads.... and 'chips were a flyin'..

I found stuffing the slots with that 1" square foam weather stripping stuff worked wonders... I think you may know a place that has a bunch of it... and they throw more away than they actually use... (the trash dumpster always had 4 foot sections overflowing out back...) :rotflmao: :rotflmao: :great:

I have NO reason to go near that place.... even for free foam strips. Unless I took the long way around, I'd be slammed with a $4.30 toll each way. Fook that.

Once I get the slots cleaned out and sanitary looking, then we'll deal with it.

In the interim, gotta keep batten-ing down the hatches. This thing is starting to get ugly looking.
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Offline bajasam

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Re: replacement manual petcock pn#
« Reply #43 on: September 15, 2018, 09:23:39 pm »
Well I couldn't find and OEM alternate that would fit, so I went with the Murph manual kit that modifies the existing C-10 vacuum petcock to a manual off,on,reserve.  It was a bit on the expensive side but was very complete,great machine work with easy to follow website instructions and is as smooth as glass when selecting positions.I highly recommend it if you are like me and want an OFF position that is failproof.and please don't think I'll forget to turn it ON or OFF, I would no more forget to wear pants and undershorts to church then i would forget to turn my petcock off.

Offline connieklr

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Re: replacement manual petcock pn#
« Reply #44 on: September 20, 2018, 10:37:26 am »
One step at a time:



Picked up the tubing I needed at a hobby store to increase the length of the main pick up input. Cut to length to take to the height of the OEM petcock, taking into account that this one was sitting in an ~1/2" thick chunk of aluminum. Grabbed the propane torch to sweat things together, and poo. Apparently the knob had been jostled slightly ON since the last time I used it; no propane.

No problem. Crank up the oxy/acet. Well double poo. Even with the smallest tip and a minimal flame, it was enough to wipe out the brass tubing. Managed to salvage enough of the original to get it lengthened out, hence the funky appearance. In hindsight, they might have had some the same size as the original small tube so this lengthening wouldn't have been necessary, but some was packaged up so I wouldn't have been able do a test fit. Wound up soldering everything in place with rosin core solder with my Weller soldering gun.

Regardless, it's done. Just need to wait until I get the '95s gas level down so I can try out the bum tank to make sure there is no interference issues with the valve cover.
« Last Edit: September 20, 2018, 06:07:24 pm by connieklr »
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Offline connieklr

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Re: replacement manual petcock pn#
« Reply #45 on: September 21, 2018, 03:43:34 pm »
Tried the bum tank with the non-OEM petcock mounted up on my bike, and it does clear the valve cover – no problem.

Decided to try it for real and stuck it on my present tank. Dhoo moment. Been so long since I’ve had to R&R a petcock I’d forgotten that there are a couple of nylon washers under the bolt heads to eliminate gas from making its way down the threads out of the tank.

I’d cut a nice gasket for under the adapter piece, and no leaks there. Just need to pick up a couple of nylon washers at the local hardware store and we’ll try again later. Did not want to try using the OEM washers, or thread sealant. Since this is just an “experiment,” we’re not in any rush.




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Offline m in sc

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Re: replacement manual petcock pn#
« Reply #46 on: September 24, 2018, 06:29:54 pm »
looks great. id recommend m6 (or 1/4") stat-o-seals. https://www.mcmaster.com/93786a125

.. whats the ID of the brass tube on that petcock going into the tank?

Offline connie_rider

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Re: replacement manual petcock pn#
« Reply #47 on: September 24, 2018, 07:10:17 pm »
The brass tube ID (of the one I bought) is .210".
But that isn't the concern if your worried about fuel flow.

The diameter and length of the passages in a petcock is what would restrict the flow.
I suspect the ones on this petcock are as big {or bigger} than the ones in a stock petcock.

Ride safe, Ted

« Last Edit: September 24, 2018, 08:46:06 pm by connie_rider »
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Offline m in sc

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Re: replacement manual petcock pn#
« Reply #48 on: September 24, 2018, 07:44:16 pm »
no, i gotcha. I just harken back to naysayers telling me .25 id wasn't enough. I like your solution.