Re: Bad battery cause of a rough idle?
[Re: Belvedere1]
#2242189
01/27/17 12:01 PM
01/27/17 12:01 PM
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Joined: Jul 2007
Posts: 11,836 Florida
mopar346
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Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
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If I remember correctly the 24 is simply shorter than a 27 so you will have extra room on the long side of the battery box, post are in the correct position. Typically back in the day a 24 was a Chevy battery, 24 F was a Ford (swapped post position) and 27 was for Chryslers if memory serves.
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Re: Bad battery cause of a rough idle?
[Re: Sxrxrnr]
#2242386
01/27/17 06:11 PM
01/27/17 06:11 PM
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Joined: Feb 2003
Posts: 8,020 Pangaea
B5 Bee
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master
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Ford used the 27F and the 24F, Mopar the 27 and 24. Top post GM batteries were 22F, 24 and 24T(tall 24), AKA Delco Y55, R59, R69. The 27 isn't hard to find, it's the 27F that's not as common.
I've been using a 27F as a replacement for the 31 that came in my tractor. Last week, the Walmart 27F that I had in it died, so I went to get another. Neither Waldoworld or Sams Club had a 27F, only 27's. My cables are just long enough I could get by with a 27 so I bought a Duracell 27 from Sams. Cost was $101+tax. If I couldn't have been able to make the 27 work, I was going to use the Duracell 24F. The reason I was going to try the smaller 24 is the Duracell 24 has a CCA rating higher than many 27's of other brands.
Go with a good group 24 and forget the heavier 27, it will start a 451, especially if you have a modern starter.
If you think all Walmart or other box store batteries are inferior, I've used Walmarts batteries for 25 years. Most last 50% longer than the warranty period. The best one I had was in my '68 V200. Bought it in 2001, it died last summer, 15 year life span.
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Re: Bad battery cause of a rough idle?
[Re: Belvedere1]
#2243015
01/28/17 08:34 PM
01/28/17 08:34 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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Circle Track
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Lincoln Nebraska
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I would blast the idle mixture ports with starting fluid & retry it then I would block the metering rods up with something under the springs & retry it.
live every 24 hour block of time like it's your last day on earth
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Re: Bad battery cause of a rough idle?
[Re: Belvedere1]
#2243052
01/28/17 09:57 PM
01/28/17 09:57 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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Circle Track
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Lincoln Nebraska
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No, block them up so it is on the power circuit. EDIT When working in that area I take off the AP rod to keep from kicking raw shots of fuel into the intake while I am manipulating the throttle, not a dealbreaker just my OCD talking. its gonna be interesting to see what it ends up being.
Last edited by RapidRobert; 01/28/17 10:23 PM. Reason: bored
live every 24 hour block of time like it's your last day on earth
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Re: Bad battery cause of a rough idle?
[Re: Belvedere1]
#2243068
01/28/17 10:24 PM
01/28/17 10:24 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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You sprayed into both of the idle mixture ports with the thin red straw?
live every 24 hour block of time like it's your last day on earth
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Re: Bad battery cause of a rough idle?
[Re: Belvedere1]
#2243517
01/29/17 06:44 PM
01/29/17 06:44 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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I was thinking that it might be lean cuz of a partial blockage and or vac leak & being on the power circuit might temporarily straighten it out if that be the case.. bumping the timing wouldn't hurt either & I would go more than 2 deg.
live every 24 hour block of time like it's your last day on earth
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Re: Bad battery cause of a rough idle?
[Re: A727Tflite]
#2243655
01/29/17 10:24 PM
01/29/17 10:24 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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Lincoln Nebraska
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what is your initial? you might bump it up to 18 or so & see how it does.(I run 18 on a dead stock 85 318). I would blast out the carb idle ports. we're getting closer to a fix.
live every 24 hour block of time like it's your last day on earth
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