 I want to drive my 914 but it dont work!, I need serious help. |
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| JOE M |
 Sep 15 2008, 06:39 PM
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#1
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Member  Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None  |
I cant seem to get my carbs synced up correctly. I have tried everything but no luck. Let me start by saying I have Weber Redline IDF 40`S. They are the old style with the bigger pumps if that matters. I forget what the the jet size is but I done think thats my problem. I had Rich take a look a month ago or so and if I remember right he said that the size looked about right. I have zero experience with carbs so I am totally in the dark. I did buy a new gasket set and it came with new pumps and some o-rings. It also came with a new float valve. Where I am now is that the car starts right up and idles the balls. It sounds great but as soon as I put it in gear and give a little gas is bogs down. I have the air mixture screws all the way in and the spring loaded screws (not the idle adjust) about 2 turns out.I know that all 4 cylinders are about the same because I have a syncrometer and they all measure about 6~7 on the flow meter. I remember Rich advising me to make th adjustments with the linkage off so thats what I did. All I want is to be able to drive this thing around the block with out it farting and burping. The only thing that should cause farting and burping is beer. If anyone has any thing to offer please help.I am a desperate man and ready to get rid of this thing. Serious I will never get rid of it but I do want to understand better about how to get it to run correctly.I will deal with all the other little things later but my main goal is to get it on the street and have some fun.
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| r_towle |
Sep 15 2008, 07:05 PM
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#2
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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QUOTE(JOE M @ Sep 15 2008, 08:39 PM)  I have the air mixture screws all the way in and the spring loaded screws (not the idle adjust) about 2 turns out. did you get the book on webers? You are flooding it. It loves gas at idle, but you are not providing enough air with the screws all the way in.... You home tommorow? I can get it in about an hour or so of tuning. Get a decent drop light out there and I can come over after work when your home. Rich |
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| JOE M |
Sep 15 2008, 07:06 PM
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#3
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
One thing I forgot to add is that I have been moving the distributor a little at a time to see if that makes any changes but it did not. With that sai my timing is a little off but the car starts with no issue.Also I will need to adjust my vavlves at some point.
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| JOE M |
Sep 15 2008, 07:08 PM
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#4
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
Rich I am home at about 4:15`4:30. If you can help I would appraceate it.
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| r_towle |
Sep 15 2008, 07:31 PM
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#5
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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Ill bring my tools tommorow.
Rich |
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| rhodyguy |
Sep 16 2008, 09:15 AM
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#6
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,093 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
not to be picky. the ones you have closed are the AIR-BYPASS, yes? the spring loaded ones are the idle air mixture screws. you set them equally on the baseline setup and adjust for final tuning/smooth idle with linkage hooked up and the carbs flowing the same. throw the unisyn back on with the linkage hooked up and confirm flow #S.
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| JOE M |
Sep 16 2008, 09:57 AM
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#7
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
I have the air bypass all the way in. That is what the setup procedure said to do at Weber Redline website. See the highlighted area below. I will need to verify the float position because I think it is off. Rich is coming over sometime tonight so I am in good hands. I think his experience will help determine what is going on.The other problem that I have is that the mixture screws ( spring loaded) do not appear to be correct. There were no o-rings and the cup washer seems way to big.This is probably causing some issue also. I called weber and they do not have any specs on the cup washer so I have no way of knowing if it is correct but it seems way to big from what I see. I will wait for Rich and get his opinion. I have some orings that fit but because the hole diameter on the washer is so big the o-rings slip through it.Below is also a pic of the mixture screw with the swivel washer over it. This is the washer that was on all 4 mixture screws when I got the car.
PIC1.bmp ( 291.21k )
Number of downloads: 52 |
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| Borderline |
Sep 16 2008, 11:09 AM
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#8
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Senior Member Group: Members Posts: 720 Joined: 8-February 05 From: San Juan Bautista, CA Member No.: 3,577 Region Association: Northern California |
I use the synch-tool twice. The first time to balance the flow at idle with the linkage removed. Then with the throttle linkage connected, I adjust the throttle cable to bring the engine speed up to ~2k. Then I adjust the throttle links to balance the flow again. This works pretty well as that throttle position is where you spend most of your time when cruising around. Also my throttle linkage has a lot of play and this method compensates for slop in the linkage. Don't forget to re-adjust the cable so it idles back down. good luck! (IMG:style_emoticons/default/biggrin.gif)
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| r_towle |
Sep 16 2008, 06:37 PM
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#9
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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QUOTE(JOE M @ Sep 16 2008, 11:57 AM) I have the air bypass all the way in. That is what the setup procedure said to do at Weber Redline website. See the highlighted area below. I will need to verify the float position because I think it is off. Rich is coming over sometime tonight so I am in good hands. I think his experience will help determine what is going on.The other problem that I have is that the mixture screws ( spring loaded) do not appear to be correct. There were no o-rings and the cup washer seems way to big.This is probably causing some issue also. I called weber and they do not have any specs on the cup washer so I have no way of knowing if it is correct but it seems way to big from what I see. I will wait for Rich and get his opinion. I have some orings that fit but because the hole diameter on the washer is so big the o-rings slip through it.Below is also a pic of the mixture screw with the swivel washer over it. This is the washer that was on all 4 mixture screws when I got the car.
PIC1.bmp ( 291.21k )
Number of downloads: 52Oops, forgot. I spent all day roofing my FIL house...I am beat tired. Can we do this Wed night, same time? Rich |
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| r_towle |
Sep 16 2008, 06:39 PM
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#10
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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Those are the wrong washers.
Let me see if I have any...dont think I do...no more carbs here, but a pile of parts... I will bring what I have, its a box of weber stuff from lots of cars. Rich |
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| JOE M |
Sep 16 2008, 06:40 PM
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#11
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
QUOTE(r_towle @ Sep 16 2008, 04:37 PM) QUOTE(JOE M @ Sep 16 2008, 11:57 AM) I have the air bypass all the way in. That is what the setup procedure said to do at Weber Redline website. See the highlighted area below. I will need to verify the float position because I think it is off. Rich is coming over sometime tonight so I am in good hands. I think his experience will help determine what is going on.The other problem that I have is that the mixture screws ( spring loaded) do not appear to be correct. There were no o-rings and the cup washer seems way to big.This is probably causing some issue also. I called weber and they do not have any specs on the cup washer so I have no way of knowing if it is correct but it seems way to big from what I see. I will wait for Rich and get his opinion. I have some orings that fit but because the hole diameter on the washer is so big the o-rings slip through it.Below is also a pic of the mixture screw with the swivel washer over it. This is the washer that was on all 4 mixture screws when I got the car.
PIC1.bmp ( 291.21k )
Number of downloads: 52Oops, forgot. I spent all day roofing my FIL house...I am beat tired. Can we do this Wed night, same time? Rich That works for me but I will not be home untill 6. Is that o.k with you? |
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| r_towle |
Sep 16 2008, 06:53 PM
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#12
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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yes, actually better...I have to finish the roof tommorow...so 6 is cool.
Where do you work, location wise? You need to get the right washers...I can tell you who might have them local to your work...lunch run.. Rich |
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| JOE M |
Sep 17 2008, 05:12 AM
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#13
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
QUOTE(r_towle @ Sep 16 2008, 04:53 PM) yes, actually better...I have to finish the roof tommorow...so 6 is cool. Where do you work, location wise? You need to get the right washers...I can tell you who might have them local to your work...lunch run.. Rich Rich I work in Tekwsbury Ma. on RT38 near the Home Depot. |
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| r_towle |
Sep 17 2008, 08:50 AM
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#14
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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QUOTE(JOE M @ Sep 17 2008, 07:12 AM) QUOTE(r_towle @ Sep 16 2008, 04:53 PM) yes, actually better...I have to finish the roof tommorow...so 6 is cool. Where do you work, location wise? You need to get the right washers...I can tell you who might have them local to your work...lunch run.. Rich Rich I work in Tekwsbury Ma. on RT38 near the Home Depot. http://www.autobahnperformance.com/ |
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| JOE M |
Sep 17 2008, 11:02 AM
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#15
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
QUOTE(r_towle @ Sep 17 2008, 06:50 AM) QUOTE(JOE M @ Sep 17 2008, 07:12 AM) QUOTE(r_towle @ Sep 16 2008, 04:53 PM) yes, actually better...I have to finish the roof tommorow...so 6 is cool. Where do you work, location wise? You need to get the right washers...I can tell you who might have them local to your work...lunch run.. Rich Rich I work in Tekwsbury Ma. on RT38 near the Home Depot. http://www.autobahnperformance.com/ Rich, I called them ( the link you sent) and they said they have nothing. How critical is that washer. I have some swivel washers at work that I can open up a little and might work. I guess I am wondering what the function of the washer is other than a surface for the spring to rest on. It looks like it helps to hold compression on the spring but I am unsure. I am going to try to call Weber and see if replacements are available but I think I went down this road before. |
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| 904svo |
Sep 17 2008, 12:00 PM
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#16
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904SVO Group: Members Posts: 1,118 Joined: 17-November 05 From: Woodstock,Georgia Member No.: 5,146 |
There missing on my carbs also!!!! They are shown on the parts list. guess I'm
going to have to make them. |
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| JOE M |
Sep 17 2008, 12:36 PM
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#17
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
Rich,
I called a couple of other local places and no one has them. Do you think it`s worth it to make some adjustments or is it a waste of time right now? They sound like they are hard to come by. Not sure what to do! |
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| JOE M |
Sep 17 2008, 12:40 PM
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#18
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
QUOTE(904svo @ Sep 17 2008, 10:00 AM) There missing on my carbs also!!!! They are shown on the parts list. guess I'm going to have to make them. I will let you know what I end up doing. I might try to make some out of swivel washers that I have.  |
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| SGB |
Sep 17 2008, 08:50 PM
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#19
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just visiting Group: Members Posts: 4,086 Joined: 8-March 03 From: Huntsville, AL Member No.: 404 Region Association: South East States |
The right washers do have a cup like shape (think donut dliced lenghtwise) to hold the o-ring against the base of the adjuster screw. I'm thinking they would be pretty important in the fine-tuning, but you have more serious mis-balence between the sides. I'm hoping you are confident your valves are correct. Not just "OK", but correct. The valve adjustment is really the first step of a carb synchronisation.
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| JOE M |
Sep 18 2008, 05:24 AM
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#20
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Member Group: Members Posts: 293 Joined: 27-August 07 From: N.H Member No.: 8,042 Region Association: None |
QUOTE(SGB @ Sep 17 2008, 06:50 PM) The right washers do have a cup like shape (think donut dliced lenghtwise) to hold the o-ring against the base of the adjuster screw. I'm thinking they would be pretty important in the fine-tuning, but you have more serious mis-balence between the sides. I'm hoping you are confident your valves are correct. Not just "OK", but correct. The valve adjustment is really the first step of a carb synchronisation. I think my valves are off alittle but probably not horrible. I will get in there and check again. I am still looking for a good procedure on how to set them the best way. I tried the pelican parts article and it was kind of confusing how it was written. It`s not horrible but sort of confusing. |
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