Need some help |
Post Reply | Page 123> |
Author | |
Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
Post Options
Thanks(0)
Posted: 21 May 2018 at 2:28am |
Hey guys, new CJ-2A owner here......need some input. I bought it yesterday, its been rebuilt from the frame up, really nice Jeep. Guy I bought it from lives at 4000ft, I live at 6500ft. Fires right up, idles fine......get it moving and as soon as it gets up to operating temp it sputters like crazy and wants to die....strong gas smell. If I pull over and let it cool down, it runs fine for a few minutes, then starts sputtering again under any load. I spent all night here reading, I've pulled the carb adjustment screw and its not damaged in any way. I put it all the way back in and brought it out 1.5 turns...idles fine, until its under load then sputters and dies. I've tried 1/4 turn each direction....no affect. I then tried timing. It was at 5* BTDC. The idles is ok, but moving to 8-10* BTDC brings up the idle a bit......but again as soon as its warm and under load it sputters and dies. I checked the carb and the fuel is moving, doesnt look to be the issue. The air intake/oil filter isnt tight on the carb, its kind of just sitting on top...the clamp wont hold it down at all....but to me that doesnt seem like it could cause this issue. I cant find any vacuum leaks, and the engine was recently rebuilt (last year) with minimal miles. Guy I bought it from says hes stumped, he didnt have any issues at all and hes sure its just the altitude I live at....He seems to be a straight up guy and is trying to help.....but I need your combined genius to get this baby on the road. I appreciate any input and you guys trying to take the time to help.
|
|
1947 CJ-2A Willys
|
|
Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
Post Options
Thanks(0)
|
My first thought is vapor-lock....but the previous owner said he drove it 25 miles the other day without an issue, and hes never had it vapor-lock before. I see the fuel line isnt insulated at all....but its been in the 30s and 40s the last 24 hours....would that prevent vapor-lock?
|
|
1947 CJ-2A Willys
|
|
smfulle
Member Sponsor Member Joined: 16 Sep. 2010 Location: Ogden, Utah Status: Online Points: 6144 |
Post Options
Thanks(0)
|
This is the answer I give a lot, but many of us have had issues with the condenser. Even brand new ones out of the box have been bad. With mine the Jeep would start and run but had no power and cough and sputter under any kind of load. Swapped out the condenser and good as new.
Might not be the problem, but it’s easy and cheap to swap it out.
|
|
Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
Post Options
Thanks(0)
|
Thank you so much.....any chance a NAPA/Autozone/ETC might have one? I'll swap that out tomorrow and take it from there. I was trying to find a vacuum port to find the sweet spot for my elevation, but I cant seem to find a port on the intake. Any recommendations?
|
|
1947 CJ-2A Willys
|
|
Baker6x6
Member Joined: 27 July 2016 Location: WinstonSalem NC Status: Offline Points: 34 |
Post Options
Thanks(0)
|
Pull/read the spark plugs.. will help decide whether it's electrical or fuel related.
|
|
Joe DeYoung
Member Sponsor Member x 2 Joined: 20 July 2005 Location: Madison WI Status: Offline Points: 3362 |
Post Options
Thanks(0)
|
Sure sounds like you may have a dead cylinder to me. Without load, the energy in the flywheel is able to smooth/cover up a dead cylinder to the point you may not notice it. I would start by pulling off spark plug wires while it is running to see if you indeed have a dead cylinder. If cylinder is producing power, the engine idle will change (slow down and stumble) when wire is disconnected. If no change in idle, then that cylinder is not producing any power. Caution... put on a heavy leather glove to insulate you from a possible uncomfortable zinger from crappy wires.
If you do indeed have a dead cylinder, then your next step is to determine if it's electrical, fuel, or a mechanical problem. More on that later if you need to take that step. |
|
Joe DeYoung
to many jeeps, parts, and accessories to list here, but apparently enough to keep me in trouble with my wife. |
|
Jeff_Davis
Member Joined: 15 July 2012 Location: Argentina & FL Status: Offline Points: 551 |
Post Options
Thanks(0)
|
Here is a simple thing to check.Check if the needle valve in the float bowl of the carb is free and working properly. If it is of the rubber tip variety, change it - they get dried out.
Perhaps it is sticking open and flooding the engine.... hence the "Strong gas smell". Check the float level whilst you're in there. Related, is the fuel pump pressure too high? Best, Jeff
|
|
Jeff
1947 Willys CJ2A Las Flores, Provinca de Buenos Aires, Argentina 1951 Willys M38 Flightline jeep (Southeast Florida) 1954 M-100 USMC Trailer 1954 FORD F-100 parts chaser, 292 V8 Y-Block |
|
Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
Post Options
Thanks(0)
|
.Its a fresh rebuild, so the cylinders are good. Took it to an old time shop and they told me the carb needs a new jet. Said that he had to take his down two sizes to get it to stop dumping fuel. Also said vapor lock is a pretty big issue up here.....hopefully this will get me going.
|
|
1947 CJ-2A Willys
|
|
Baker6x6
Member Joined: 27 July 2016 Location: WinstonSalem NC Status: Offline Points: 34 |
Post Options
Thanks(0)
|
If you are having trouble with vaporlock.. there is a very thick carb base gasket and you could possibly make a heat shield for the carb.
|
|
Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
Post Options
Thanks(0)
|
thank you, that was my next question. I was looking to insulate the fuel line all the way to the tank....it seems too close to the exhaust in a few places. What are your guys thoughts on a Solex carb to replace the original
|
|
1947 CJ-2A Willys
|
|
athawk11
Member Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4151 |
Post Options
Thanks(0)
|
I'm with Stan. Sounds like a crappy condenser to me.
|
|
1- 1946 CJ2A
2- 1949 CJ3A |
|
Steelyard Blues
Member Joined: 09 Oct. 2017 Location: Reno, NV Status: Offline Points: 1500 |
Post Options
Thanks(0)
|
Montana,
Your fuel line should not be close to the exhaust. Is it a homemade replacement? I had one in mine, too close to the exhaust and not secured. Omix makes a pre-bent replacement. I just did mine a couple of weeks ago. Kit included flexible line to the fuel pump, the hard line to the carb an three retaining clips. I have a Solex and have no problems with it. Micah
|
|
1947 CJ2A 106327, Engine J109205, Tub 97077. Luzon Red
https://www.thecj2apage.com/forums/steelyard-blues_topic41024_post397981.html?KW=micah+movie#397981 1965 Johnson Furnace Company M416 #6-1577 |
|
Bruce W
Member Joined: 29 July 2005 Location: Northeast Colorado Status: Offline Points: 9652 |
Post Options
Thanks(0)
|
Your "Old-time Shop" is full of it. There are a bunch of us here who live at elevations of anywhere from 5,000 to 9,000 ft, and all are running the stock jet and metering rod. Mostly because there are no other jets or rods available. We commonly run to 13,000 ft and more with no problems. This time of year at your elevation, you should not have any vaporlock problems. If you are, too bad, your jeep will not run at all come summer. I would be looking elsewhere. BW
|
|
It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
|
ndnchf
Member Sponsor Member x 2 Joined: 22 Sep. 2017 Location: Virginia Status: Offline Points: 2177 |
Post Options
Thanks(0)
|
The original Carter WO is a far better carb than the Solex. I know that a lot of folks run a Solex and are satisfied with it. When I bought my '48 it had a Solex and it ran ok. But I replaced it with a completely rebuilt Carter from Scoutpilot and it runs MUCH better. It starts easy, plenty of power and no hesitation or flat spots.
|
|
1948 CJ2A - It goes nowhere fast, but anywhere slow.
|
|
jeeper50
Member Sponsor Member Joined: 01 Mar. 2008 Location: Spanish Fort AL Status: Offline Points: 2579 |
Post Options
Thanks(0)
|
Personally I would take the money that I would use buying a solex and send your carb to 'ol jeep carbs for a rebuild, scoutpilot here on this forum provides an awesome service to all of us willys owners. |
|
Belleview ol skool winch soon. '48 CJ2A 283 V8 sm 420 granny low, tera low D18, overdrive,lockers Texan at heart,Alabama by retirement |
|
athawk11
Member Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4151 |
Post Options
Thanks(0)
|
X2
|
|
1- 1946 CJ2A
2- 1949 CJ3A |
|
Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
Post Options
Thanks(0)
|
I see a lot of back and forth over the elevation thing. Whats crazy to me is it run perfect for 5 minutes, then stats sputtering worse and worse until it dies.....and smells of gas. I'll replace the condenser today and see what that does.....
|
|
1947 CJ-2A Willys
|
|
Bruce W
Member Joined: 29 July 2005 Location: Northeast Colorado Status: Offline Points: 9652 |
Post Options
Thanks(0)
|
"....and smells of gas."
If for any reason the fuel in the cylinder is not being burned, what do you suppose the exhaust will smell like? BW
|
|
It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
|
Post Reply | Page 123> |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |