 Newbie Tears Into Webers |
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| jmill |
 Oct 16 2009, 12:50 PM
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#181
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Green Hornet  Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest  |
QUOTE(kenshapiro2002 @ Oct 16 2009, 01:41 PM)  When running it was hard to hear, but I think it was maintaining it's slow (once a second?) click. I noticed that the accel jet wasn't squirting at all on the barrel over cylinder #1. I do not have a fuel pressure gauge, and have not done any of the adjustments yet. You can put your hand on it and feel the clicks. From what your telling me it sounds like it should. The accel jet is a problem. Squirt it a few times to make sure it's primed. If it still doesn't work you'll have to pull it apart and blow out the crud. Once you set the mixture screws it'll idle even better. It's easy to do. Spin it out so your mixture is fat. Should be around 3 1/2 turns. Slowly spin it in until you hear it run better. The RPM will pick up a bit. Some leave it there. I like to back it out 1/4 turn to be sure I'm a tad rich. If you go too far in the carb will pop. Make sure you don't get it in the face or ear. |
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| kenshapiro2002 |
Oct 16 2009, 12:56 PM
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#182
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Yeah...#3 and #4 are squirting beautifully. #2 is spotty and #1 is non existent. Gotta break them out and see what's up there.
QUOTE(jmill @ Oct 16 2009, 02:50 PM) QUOTE(kenshapiro2002 @ Oct 16 2009, 01:41 PM) When running it was hard to hear, but I think it was maintaining it's slow (once a second?) click. I noticed that the accel jet wasn't squirting at all on the barrel over cylinder #1. I do not have a fuel pressure gauge, and have not done any of the adjustments yet. You can put your hand on it and feel the clicks. From what your telling me it sounds like it should. The accel jet is a problem. Squirt it a few times to make sure it's primed. If it still doesn't work you'll have to pull it apart and blow out the crud. Once you set the mixture screws it'll idle even better. It's easy to do. Spin it out so your mixture is fat. Should be around 3 1/2 turns. Slowly spin it in until you hear it run better. The RPM will pick up a bit. Some leave it there. I like to back it out 1/4 turn to be sure I'm a tad rich. If you go too far in the carb will pop. Make sure you don't get it in the face or ear. |
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| jmill |
Oct 16 2009, 01:08 PM
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#183
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
QUOTE(kenshapiro2002 @ Oct 16 2009, 01:56 PM) Yeah...#3 and #4 are squirting beautifully. #2 is spotty and #1 is non existent. Gotta break them out and see what's up there. If #2 is spotty also it'll most likely be the little rubber check valve. Make sure it's pushed in all the way (I pull it in from the back) and isn't curled. If it doesn't seal well fuel bypasses the jets and goes back to the float bowl. |
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| kenshapiro2002 |
Oct 16 2009, 02:05 PM
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#184
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Whattaya mean, "I pull it in from the back"? Do I need to pull the carb off to do this? Guessing I do.
QUOTE(jmill @ Oct 16 2009, 03:08 PM) QUOTE(kenshapiro2002 @ Oct 16 2009, 01:56 PM) Yeah...#3 and #4 are squirting beautifully. #2 is spotty and #1 is non existent. Gotta break them out and see what's up there. If #2 is spotty also it'll most likely be the little rubber check valve. Make sure it's pushed in all the way (I pull it in from the back) and isn't curled. If it doesn't seal well fuel bypasses the jets and goes back to the float bowl. |
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| kenshapiro2002 |
Oct 16 2009, 02:06 PM
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#185
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
You're talking about the square rubber valve inside the accelerator pump valve on the face of the carb , right?
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| jmill |
Oct 16 2009, 03:01 PM
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#186
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
The black square thing is the diaphram. There should be a check valve that prevents fuel from flowing back into the float bowl when you depress the accel. It's been a long time. I can't remember if it's a ball check or a little orange rubber mushroom. I've been rebuilding Holleys lately and I think I got us both screwed up. I'll check for sure when I get home.
You don't have to pull the carb off but it'll get messy. Take the 4 screws off the pump on the side of the carb. Fuel will puke out until the float bowl is empty. Make sure the channel is clear to the nozzles and the check valve works. |
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| neil30076 |
Oct 16 2009, 03:32 PM
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#187
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Recovering dismantler! Group: Members Posts: 397 Joined: 12-September 06 From: San Diego ( RB) CA Member No.: 6,826 Region Association: Southwest Region |
Ken, looking back at post #82, you have an adjustable accelerator pump linkage. Before you rip into the carb again make sure the linkage is moving the same amount as the other carb, if it is, I'm guessing you got the diaphram hung up when you reinstalled it - BTDT ! There is a check valve in the bottom of the bowl area, but if that was messed up you would have low gas in the bowl.
Also, the two accerator jets are easy to remove, pull them both and see how much gas squirts out when you move the linkage, you may just have dirt in both. |
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| kenshapiro2002 |
Oct 16 2009, 03:47 PM
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#188
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
BTDT?
I may nort get back into this until Monday...man whoring on Saturday (weekend girlfriend), watching the Ravens blow another game by three points on Sunday. |
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| neil30076 |
Oct 16 2009, 03:50 PM
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#189
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Recovering dismantler! Group: Members Posts: 397 Joined: 12-September 06 From: San Diego ( RB) CA Member No.: 6,826 Region Association: Southwest Region |
Been There, done that! I had exact same problem with my #1,2 carb - have a fun weekend - going into 90's here, but i can live with it :-)
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| kenshapiro2002 |
Oct 16 2009, 03:53 PM
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#190
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
"Inlet valve with Exhaust orifice" sits in the bottom of the float chamber. How does one check to see if it works?
QUOTE(jmill @ Oct 16 2009, 05:01 PM) The black square thing is the diaphram. There should be a check valve that prevents fuel from flowing back into the float bowl when you depress the accel. It's been a long time. I can't remember if it's a ball check or a little orange rubber mushroom. I've been rebuilding Holleys lately and I think I got us both screwed up. I'll check for sure when I get home. You don't have to pull the carb off but it'll get messy. Take the 4 screws off the pump on the side of the carb. Fuel will puke out until the float bowl is empty. Make sure the channel is clear to the nozzles and the check valve works. |
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| kenshapiro2002 |
Oct 16 2009, 03:57 PM
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#191
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Yeah...the linkages are moving the same amount. I'm guessing the diaphragm got hung up some how. The jets squirt perfectly on the second carb (right side). The one over cyclinder #1 is dead, and the one over cylinder #2, will squirt about 75% for 4-5 squirts, go dead for a pull and then start working at about 75% efficiency again, repeating that pattern. I'll just pull that carb on Monday and redo the accelerator pump...no big deal now that I've done it twice.
Ya'll have a nice weekend. QUOTE(neil30076 @ Oct 16 2009, 05:32 PM) Ken, looking back at post #82, you have an adjustable accelerator pump linkage. Before you rip into the carb again make sure the linkage is moving the same amount as the other carb, if it is, I'm guessing you got the diaphram hung up when you reinstalled it - BTDT ! There is a check valve in the bottom of the bowl area, but if that was messed up you would have low gas in the bowl. Also, the two accerator jets are easy to remove, pull them both and see how much gas squirts out when you move the linkage, you may just have dirt in both. |
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| kenshapiro2002 |
Oct 16 2009, 03:59 PM
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#192
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
90s? You suck! Normal high here for October 16 is around 67º. It's never gotten above 41º today and it's raining like crazy. Have infra red heater in the garage though.
QUOTE(neil30076 @ Oct 16 2009, 05:50 PM) Been There, done that! I had exact same problem with my #1,2 carb - have a fun weekend - going into 90's here, but i can live with it :-) |
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| neil30076 |
Oct 16 2009, 04:04 PM
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#193
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Recovering dismantler! Group: Members Posts: 397 Joined: 12-September 06 From: San Diego ( RB) CA Member No.: 6,826 Region Association: Southwest Region |
QUOTE(kenshapiro2002 @ Oct 16 2009, 02:59 PM) 90s? You suck! Normal high here for October 16 is around 67º. It's never gotten above 41º today and it's raining like crazy. Have infra red heater in the garage though. Sorry to hear that, My garage is heated and air conditioned, so its comfortable any time of the year (IMG:style_emoticons/default/biggrin.gif) |
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| jmill |
Oct 16 2009, 04:21 PM
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#194
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
Sorry for the confusion. It's been a long week. If the ball check doesn't work it will have no affect on the float bowl level. What will happen is when you compress the diaphram fuel will just get ported back to the float bowl backwards through the inlet. Imagine a plunger in the toilet. You would just move the fuel in and out of the float bowl. If #2 squirts at 75% I think your check valve is ok. If it was stuck it wouldn't flow that much. Check that your diaphram is in right and that the passages and nozzles are clear.
PS - you might want to check your diaphram before the spending the weekend with your girlfriend. (IMG:style_emoticons/default/happy11.gif) |
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| kenshapiro2002 |
Oct 16 2009, 05:36 PM
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#195
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
I'm neutered!
QUOTE(jmill @ Oct 16 2009, 06:21 PM) Sorry for the confusion. It's been a long week. If the ball check doesn't work it will have no affect on the float bowl level. What will happen is when you compress the diaphram fuel will just get ported back to the float bowl backwards through the inlet. Imagine a plunger in the toilet. You would just move the fuel in and out of the float bowl. If #2 squirts at 75% I think your check valve is ok. If it was stuck it wouldn't flow that much. Check that your diaphram is in right and that the passages and nozzles are clear. PS - you might want to check your diaphram before the spending the weekend with your girlfriend. (IMG:style_emoticons/default/happy11.gif) |
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| Gint |
Oct 16 2009, 11:33 PM
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#196
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Mike Ginter Group: Admin Posts: 16,106 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains  |
Had a Triumph Spitfire once with a similar issue. It would run great for about 5 minutes, and then quit. Pretty consistent. I could drive around the neighborhood for 5 minutes and it would quit. Let it cool off for a few hours, drive around the neighborhood for 5 minutes and it would quit again. When I went through the fuel system I eventually found the culprit. The pick up tube for the fuel tank went in through the top of the tank down to the bottom. When I finally pulled the tank out and checked the pick up tube I found an inch or two long plug of rust particles in the bottom of the tube. The pump could pull the fuel up through the tube just fine until it got warm. Cleaned it out and it ran great for the several years I owned it.
Something to think about. |
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| kenshapiro2002 |
Oct 17 2009, 07:26 AM
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#197
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Yeah...a few months ago, in another thread of mine, I was even featuring shots of my tank sock (tank looked pretty clean other than a few speckles in the bottom). That episode turned out to be a faltering rotor. Ill eventually get to the tank...redoing the fuel lines, moving the fuel pump, etc.
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| type47 |
Oct 17 2009, 08:18 AM
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#198
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
'bout time you got out to the garage, it's what? 8:30? (IMG:style_emoticons/default/biggrin.gif)
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| kenshapiro2002 |
Oct 17 2009, 02:20 PM
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#199
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Not Monday yet. (IMG:style_emoticons/default/huh.gif) (IMG:style_emoticons/default/huh.gif)
QUOTE(type47 @ Oct 17 2009, 10:18 AM) |
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| VaccaRabite |
Oct 17 2009, 04:16 PM
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#200
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En Garde! Group: Admin Posts: 13,845 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region 
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Let me just help this thread to page 3.
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