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Slow cranking engine that doesn't like to fire |
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Carlsjeep 
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Joined: 15 Jan. 2011 Location: Taylorsville Ky Status: Offline Points: 2642 |
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 Posted: 09 Apr. 2014 at 3:57pm |
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It's true, if the engine fires early it will impede the speed of the starter turning the engine. But, the starter will turn the engine in surges, that is, the engine seems to stop turning as each cylinder fires. BUT, that is an unusual condition.
Borrow or buy a timing light and see if the engine is in time or close to time. Have you tried moving the dist. as the engine is running? Does it smooth out or get rough as you move it back and forth? Have you checked where the rotor is pointing when the #1 cylinder is on TDC and compression?
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Life is only as good as you make it.
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F Bill
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Sponsor Member x 2 Joined: 05 Dec. 2005 Location: central Texas Status: Offline Points: 7752 |
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Posted: 09 Apr. 2014 at 4:05pm |
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Are you thinking cam timing is off? Engine would run pretty poorly and probably warm, and have a serious lack of power if that is the case.....
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If you haven't checked out the tech FAQ section, go to:
http://www.thecj2apage.com/forums/tech-faq_forum57.html for a lot of great stuff you need to know!! |
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sandusky
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Joined: 19 Sep. 2010 Location: S.E. Iowa Status: Offline Points: 1773 |
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Posted: 09 Apr. 2014 at 5:47pm |
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No I think the cam is correct. I'm leading between the one tooth off scenario (oil pump) to get the timing close. Yes we have checked with a timing light,I'll borrow a dwell meter this week after I get my starter back with report. we had to turn the distributor until it wouldn't go any further and possibly a dragging starter.
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Carlsjeep
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Joined: 15 Jan. 2011 Location: Taylorsville Ky Status: Offline Points: 2642 |
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Posted: 10 Apr. 2014 at 4:53am |
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Well, if you have 5 deg advance, the right firing order and a good starter with good electrical connections the engine should turn over nicely and start easily.
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Life is only as good as you make it.
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splinterguy
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Joined: 30 Oct. 2009 Location: Catskill Mtns. Status: Offline Points: 21 |
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Posted: 11 Apr. 2014 at 2:08am |
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I had this problem with mine and it turned out to be a bad battery cable. Corrosion had worked it's way in under the insulation at one end. Caused a voltage drop in that part of the circuit. Might be worth a second look.
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1948 cj2a
3 1962 wagons 1951 pick up |
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CmK
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Joined: 08 July 2010 Location: Thompson, CT Status: Offline Points: 347 |
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Posted: 11 Apr. 2014 at 3:06am |
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Just curious, does the slow cranking only happen during cold starts, or on warm starts, too?
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CJ-2A 43883 [SOLD]
CJ-2A 104976 [SOLD] |
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SlowPocono
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Joined: 25 Feb. 2014 Location: NEPA Status: Offline Points: 346 |
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Posted: 11 Apr. 2014 at 3:18am |
Absolutely correct and simple. |
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sandusky
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Joined: 19 Sep. 2010 Location: S.E. Iowa Status: Offline Points: 1773 |
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Posted: 15 Apr. 2014 at 8:53pm |
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Update, I'm methodically going to debug this. Got the starter back it checked out just fine! Next to the Cables I've already cleaned up the ground connection points. I might pick up a 6 volt solenoid and bypass my el-cheapo foot starter button.Thanks for all the input. It snowed here yesterday so I've calmed a little, but Spring Fever is right around the corner!
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ralf
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Posted: 15 Apr. 2014 at 10:07pm |
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This is very basic. A 6 Volt system needs a good ground to starter. I ran a heavy cable from where the negative lead from the battery attaches to the frame, directly to the front mount of the starter where it bolts to the side of the block. With this method you can at least rule out a poor ground and troubleshoot other issues. Yes, remove the battery cables and dress the ends and then slather them in petroleum jelly, this works better than any product I ever tried. Where the negative lead bolts to the frame, dress that area to bare steel when you attach the heavy cable to the starter I suggested. Slather that in petroleum Jelly as well.
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1947 CJ2A
1948 CJ2A 1953 Ford NAA Golden Jubilee Tractor 1941 J-3 Cub 1957 Farmall Cub Low Boy tractor 1942 Clarktor WW2 tug |
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p3ferris
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Joined: 22 July 2005 Location: Norfolk Nebraska Status: Offline Points: 3812 |
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Posted: 16 Apr. 2014 at 1:14am |
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Actually contax that us electricians use is the best. It is made just to stop corrosion. I use it on all my veh. I re apply it once in the lifetime of a battery.
And back to your problem...mine acted that way before And I went to the FORD tractor supply and bought an identical floor starter switch as mine was worn out and not makeing good contact.
Edited by p3ferris - 16 Apr. 2014 at 1:16am |
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Ed
cj2a lefty |
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johnnybravo
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Joined: 14 Feb. 2008 Location: Glen Lyn, VA Status: Offline Points: 2075 |
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Posted: 16 Apr. 2014 at 9:19pm |
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Been thinking about the "El cheapo" , I totally agree with p3f get a quality replacement.
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Ret. USAR-Vet, 6-GPW's,, 1-M38 w/M-100, 1-47 WO "Jeep" 4X2 Wagon, several ruff CJ2&3A's, 1-CJ3B,
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sandusky
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Joined: 19 Sep. 2010 Location: S.E. Iowa Status: Offline Points: 1773 |
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Posted: 17 Apr. 2014 at 8:39pm |
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Problem solved! It is such a relief to have overcome this ongoing problem.I appears to have been(so much for systematically solving the problem) a faulty floor mounted switch. I've replaced it and at the same time, to lessen future failures added a 6 volt solenoid.I also went through and cleaned up all my grounding cables and contact points to frame and engine.giving everything a good coat of contax. Upon replacement of the switch the engine cranks over at a much faster rate and fires right up.Ive also checked and now we aren't showing any drain on the battery with the key in the off position,I believe the old switch was causing this issue but can't prove it. Or I possibly had a wire out of place.Before my battery would be drained in 2 days of sitting.Now my trickle charger will hopefully be needed only for Winter storage. Thanks to All of your guidance,next on my list is the transfer case output shaft seal and a Speedy Sleeve. Sandusky
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dennisanvil
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Joined: 07 June 2008 Location: ia Status: Offline Points: 1645 |
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Posted: 18 Apr. 2014 at 1:15am |
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great job. happy for you. dennis |
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dennisanvil 1948 cj2a, maker of tailgate hooks & hand forge iron ware
there not any knowen cure for jeep fever. serial # 164136< |
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johnnybravo
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Joined: 14 Feb. 2008 Location: Glen Lyn, VA Status: Offline Points: 2075 |
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Posted: 18 Apr. 2014 at 1:43am |
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X2 glad your back wheels are rolling forward!
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Ret. USAR-Vet, 6-GPW's,, 1-M38 w/M-100, 1-47 WO "Jeep" 4X2 Wagon, several ruff CJ2&3A's, 1-CJ3B,
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dennisanvil
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Joined: 07 June 2008 Location: ia Status: Offline Points: 1645 |
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Posted: 18 Apr. 2014 at 2:11pm |
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I bet that the back wheel roll backward too. dennis |
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dennisanvil 1948 cj2a, maker of tailgate hooks & hand forge iron ware
there not any knowen cure for jeep fever. serial # 164136< |
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sandusky
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Joined: 19 Sep. 2010 Location: S.E. Iowa Status: Offline Points: 1773 |
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Posted: 18 Apr. 2014 at 3:06pm |
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A minor setback. I picked up a new floor mounted starter switch at the local farm&home . Thinking it will have less load on it and should handle the juice to the solenoid without a problem.We installed it and the engine started and ran fine ,I had been reaching in and pushing the switch with my hand ,I was just getting ready to take her out for a spin so I sat in the drivers seat turned on the key pushed down on the floor switch and Nothing ! I try it a second time and hear some bad electrical sounds coming from the switch now I see a red glow and the El-Cheapo floor switch has laid over Physically broken causing electrical failure! I pull the pos. cable and head for Napa,a 40 mile trip they stock 2 switches just a couple bucks differenceI buy the Napa/Echlin switch. Today I shall install .Im considering putting a small momentary switch to use as a starter button up under the dash within easy reach. Wouldn't it be great if these were the only set backs in life. Sandusky
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TERRY
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Sponsor Member Joined: 22 May 2007 Location: BOULDER COLORADO Status: Offline Points: 3400 |
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Posted: 18 Apr. 2014 at 3:13pm |
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If you are activating the solenoid with the floor starter button, it should be a very small current draw that any switch should handle.
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BOULDER 48 2A
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johnnybravo
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Joined: 14 Feb. 2008 Location: Glen Lyn, VA Status: Offline Points: 2075 |
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Posted: 18 Apr. 2014 at 3:18pm |
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More wires equal more trouble.
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Ret. USAR-Vet, 6-GPW's,, 1-M38 w/M-100, 1-47 WO "Jeep" 4X2 Wagon, several ruff CJ2&3A's, 1-CJ3B,
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