Re: Block off vacuum advance nipple on distributor?
[Re: Blakcharger440]
#686513
05/02/10 12:56 PM
05/02/10 12:56 PM
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Joined: Feb 2005
Posts: 529
SW CO
HemiSportFury
mopar
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mopar
Joined: Feb 2005
Posts: 529
SW CO
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Yep, or you can leave it open. Not much vacumn to lose in a distributor.
'64 Sport Fury, 528 Hemi, FiTech EFI, 4-speed, 4.10 Dana 60
'57 Belvedere 2dr sedan, current project in process
'19 Cherokee Trail Hawk Elite
'03 Ram 2500 CTD HO, 6-speed 214,000 miles and still going strong
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Re: Block off vacuum advance nipple on distributor?
[Re: Blakcharger440]
#686514
05/02/10 12:59 PM
05/02/10 12:59 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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no need to cap it at that end, there is no vac at the distributor without the tube being connected to the carb. Cap it at the carb nipple.
Clean it, if it's Dirty. Oil it, if it Squeaks.
But: Don't fix it, if it Works!
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Re: Block off vacuum advance nipple on distributor?
[Re: Blakcharger440]
#686515
05/02/10 03:07 PM
05/02/10 03:07 PM
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Joined: Mar 2007
Posts: 3,285
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,285
West Coast, USA
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36 degrees total is right in the ball park, but what initial are you running? Have you tried limiting the total mechanical advance so you can run more initial timing and still have 36 total?
Does the car gas knock when you have the vacuum advance hooked up at this timing? What is the total timing advance when the vacuum advance is fully advanced? Have you adjusted the allen head inside the vacuum canister before deciding to run without it? It can give you a little better mileage on the road when it's hooked up and dialed in, but it takes some tuning to get it where it won't affect your initial acceleration and octane sensitivity.
You can also remove the vacuum pod entirely and cover the hole in the side of the distributor with a small metal plate.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Block off vacuum advance nipple on distributor?
[Re: jbc426]
#686517
05/02/10 03:56 PM
05/02/10 03:56 PM
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Joined: Dec 2003
Posts: 5,314
Carstairs, Alberta, Canada
dave571
master
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master
Joined: Dec 2003
Posts: 5,314
Carstairs, Alberta, Canada
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Quote:
36 degrees total is right in the ball park, but what initial are you running? Have you tried limiting the total mechanical advance so you can run more initial timing and still have 36 total?
The term "locked out" means that it's 36 all the time. initial, 100 rpm, 3000rpm, 8000rpm.
His cam specs elude as to why.
I run 11 degrees of mechanical in mine with a 242 @ 50 cam. no vacuum. makes the inital 24.
Switching to a 254 cam, so I may remove all the mechanical with the change.(going locked out as well) or I may end up with a really short curve, like 5 or 6 degrees. We'll see.
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Re: Block off vacuum advance nipple on distributor?
[Re: dave571]
#686519
05/02/10 08:08 PM
05/02/10 08:08 PM
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Joined: Mar 2007
Posts: 3,285
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,285
West Coast, USA
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Quote:
The term "locked out" means that it's 36 all the time. initial, 100 rpm, 3000rpm, 8000rpm.
AAhhhh, missed that in the OP.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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