| Bill D |
09-16-2018 08:13 PM |
I got it running again but...
...need some help with my Weber’s. I got the passenger side synched to 9 but the driver side to only 5. When I try to bring up the low side the high side goes up. One source said to disconnect the linkage between the sides. I fear if I do that I’ll definitely screw something up
This has become such a stressful and frustrating build beyond anything I ever imagined
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Bill,
I am in no way a Webber expert, but I am starting to learn and am limited in what I can offer. Based upon what I have read and heard from Jim Inglese, one of the things to rule out is binding or looseness in the linkage. I would suggest that with the engine off you manually move the linkage and look and feel for binding or looseness. Do the carbs open and close consistently at the same time. Do it several times, as sometimes it could be on and other times not. You might need to do some adjustments to the linkage. Do you have a top view of the linkage setup?
Jim
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| Bill D |
09-17-2018 09:26 AM |
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| CompClassics |
09-17-2018 10:42 AM |
Hi Bill,
You need to disconnect the throttle linkage from side to side, the only linkage left on during syncing is front to back. You will have to adjust the throttle linkage links to the center shaft after the syncing has been completed. There should be throttle stop screws at the back of each sides rear carb, if there somewhere else put them there. Adjust the rear two carbs so that they match each other then proceed to the front two carbs and match them to the rear carbs. Now adjust your throttle linkage so that it does not change any of the sync settings. Don’t forget to set each cylinders fuel mixture afterwards, as the volume of air being delivered can change the mixture ratio.
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| Bill D |
09-17-2018 11:51 AM |
Thanks Comp. will do and report back what happens.
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| Bill D |
09-17-2018 05:23 PM |
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:D:D:D Way to go Bill! Sounds great. Now it's time to sit back, crack open a beer or a nice wine and relax!
Bill, where did you get your headers? They look nice.
Jim
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| dallas_ |
09-17-2018 07:31 PM |
Sweet.
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| Bill D |
09-17-2018 07:57 PM |
Quote:
Originally Posted by 1795
(Post 1451351)
:D:D:D Way to go Bill! Sounds great. Now it's time to sit back, crack open a beer or a nice wine and relax!
Bill, where did you get your headers? They look nice.
Jim
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They were custom fabricated by DG Headers in Auburn, CA. I plan to take it back to him and have him put quieter mufflers on. These race mufflers are just too loud |
| Blacklemming |
09-18-2018 12:47 AM |
Engine bay is looking the deal
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Quote:
Originally Posted by Bill D
(Post 1451362)
They were custom fabricated by DG Headers in Auburn, CA. I plan to take it back to him and have him put quieter mufflers on. These race mufflers are just too loud
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Good idea going to quieter mufflers. No use going deaf. I have to wear ear protection even with the helmet on when I race. Coming out of the toe of the boot at Watkins Glen in second gear and getting on it, my ears hurt. Take care Bill.
Jim |
| jolsen42 |
09-18-2018 09:47 AM |
"Patience" my friend, "Patience". See, it works. :D
John O
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| CompClassics |
09-18-2018 11:43 AM |
At what RPM does your ignition mechanical advance kick in? Webers like full advance as soon as possible.
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| t walgamuth |
09-18-2018 03:46 PM |
Looking good! Congratulations on getting them set up! With my webers sitting on a crate in my garage I am feeling a bit jealous!
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| Bill D |
09-18-2018 03:49 PM |
Quote:
Originally Posted by CompClassics
(Post 1451376)
At what RPM does your ignition mechanical advance kick in? Webers like full advance as soon as possible.
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I put 20 deg in mechanical advance at 2500 RPM |
| CompClassics |
09-18-2018 04:27 PM |
With the aluminum heads you should be able to get more than that, try to get 36.
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| Gaz64 |
09-18-2018 10:07 PM |
Quote:
Originally Posted by Bill D
(Post 1451384)
I put 20 deg in mechanical advance at 2500 RPM
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Quote:
Originally Posted by CompClassics
(Post 1451389)
With the aluminum heads you should be able to get more than that, try to get 36.
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So with 16 at idle plus 20 in the curve, we'll get 36, which is what I would run to start with. |
| CompClassics |
09-18-2018 11:50 PM |
I guess it's subject to interpretation but I didn't see 36 degrees total mentioned, only 20 degrees at 2500 RPM.
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| cycleguy55 |
09-19-2018 11:09 AM |
Quote:
Originally Posted by CompClassics
(Post 1451410)
I guess it's subject to interpretation but I didn't see 36 degrees total mentioned, only 20 degrees at 2500 RPM.
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16° base timing, plus 20° mechanical advance = 36° total advance. |
| Bill D |
09-19-2018 01:54 PM |
I currently have base timing at 10 deg with 20 more in the distributor. So I should bump the base to 15 or 16 deg?
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