Thread: Missing on a cylinder
-
04-30-2008 07:24 PM #1
Missing on a cylinder
Last week before I put the E brake cables on my Rambler, the engine ( 196 OHV ) was running great. after me and My dad went out to test the car after the cables were put in, the engine wasn't firing on 1 cylinder, we figured the brakes being done was enough for the day so we picked up, I'm going back to working on the car on monday.. I'm thinking it's just a spark plug, I replaced them b4 but, I used Champions in the factory heat range.. originals were cold fouled. when I had checked the vac b4, it held 16 HG steady warmed up, had a tiny pop when cold so it does have a slight valve issue when it's cold.. when it starts now, it fires right up, but you have to rev it up slow in park once or twice, otherwise it will die when you try to move it, it did not do that b4.. I have the choke adjusted open all the time. any ideas?You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
Advertising
- Google Adsense
- REGISTERED USERS DO NOT SEE THIS AD
-
05-01-2008 07:20 AM #2
-
05-01-2008 05:06 PM #3
Originally Posted by DennyWYou don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
05-01-2008 05:09 PM #4
Originally Posted by DennyW
I'll do that, was thinking of doing that when I got back, also thinking about trans fluid to make them reseat if there not seatingYou don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
05-01-2008 05:38 PM #5
Originally Posted by 65nyYou don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
05-02-2008 06:25 AM #6
Originally Posted by Matt167
http://www.marvelmysteryoil.com/
-
05-05-2008 04:14 PM #7
Well, I went out today, pulled the plugs, found all but #5 are burning perfect, #5 is not firing and was gas fouled.. because I had no new plugs, I swapped #5 and #6 and fired the car up, seemed to still be missing. I pulled #6 to find the plug was cleaned off and was burning. #5 was now gas fouled ( was a good plug in #6 ) so I knew somthing was wrong. got out my compression tester and tested cyl #5... 25 PSI, just to make sure my tester was in check, I checked cyl #1 and got 150 PSI.. I know it's ither rings or valves. going to go out Friday and get a leak down tester to check which it is.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
05-05-2008 04:33 PM #8
Double check your valve springs. It was running great and all of a sudden, it misses on a cylinder. It's worth a look.What if the "Hokey Pokey" is what it's really all about?
-
05-05-2008 04:45 PM #9
Originally Posted by nitrowarriorYou don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
05-05-2008 04:51 PM #10
you don't need the leak down---you already know its bad---take it apart and fix it
-
05-05-2008 05:02 PM #11
Originally Posted by jerry claytonYou don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
05-05-2008 05:45 PM #12
I tried making a leak down tester out of 1 of the plugs I changed out of it, after I cleaned out the porcelin, I epoxied ( quick steel putty epoxy ) a 1/4" coiled air hose 3/8" end inside of it and sealed it up nice... didn't work out as planned as the coils cought on all the hoses and plug wires. was too much of a hassle so I tossed it.. I have a rubber tip for my air gun somewhere, I'll have to find it and try that.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
-
05-11-2008 06:18 PM #13
Well, I bought the leakdown tester but never had to use it... I went out the other day to move the car and it mysteriously started to run better after I started it and it warmed up a little.. checked the compression on the cylinder that got 25# and it was getting 125# and it was firing, which to me said it was a sticky valve because that is the only thing that could fix itself but... after it cooled off, it stuck again. My dad told me not to do anything to it and to change the spark plugs w/ 1 step hotter and see if it ran better and just to stick to that plan, as was what he told me to do before I diagnosed a low compression issue.. he came down and I still hadn't changed the plugs ( they were burning true and looked perfect, except #5 the dropped cylinder ) cause I saw no point, it was not the problem.. well we changed the plugs, and it did nothing, no supprises to me there. then we were changing condensor and points, coil, plug wire, trying an electric fuel pump ect... I tried to tell him it was a valve issue and he wouldn't listen... finally after he did a power balance test by pulling plug wires, he determined #5 was dead.. after verafing it had ignition, he pulled the valve cover and just as I said, a valve issue. the valve stuck open and let the push rod fall out of the rocker.. put it back togther, turned it over and it stuck again and did the same thing, so he put it back togther, I turned it over whail he held the rocker down, it broke loose quickly and now runs great again.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance