Bad engine miss

[Springer2269]

I have a 71 Dart Swinger with a 360, it was in storage for about a year without being started. I put a new battery in and cranked it over with the coil wire out to make sure I had oil pressure. It would run pouring some gas in the carb but wasn’t getting any fuel from tank. I put changed the oil, a new fuel pump, spark plugs and a gas filter and it started right up. At idle it seems to have a little miss but when I drop it in gear it really misses and shakes the whole car. Cap, rotor and wires are ordered and hopefully they will solve the problem. My question on the passenger side exhaust tip it blows warm to hot exhaust but on the drivers side the exhaust is cool and not even warm. Am I right in thinking my problem or miss is on the drivers side? Also I did fill up with fresh high test. Thank for any ideas with my problem

 

[Oldmanmopar]

Check the firing order. 5 & 7 get mixed easy.

 

[jazak5]

Would anything egr related cause it? I know. A question with a question,

 

[PRH]

An infrared temp gun would probably be an easy way of isolating the dead cylinder.

 

[sireland67]

If it ran fine before it got put in storage, and just sat.
Quit changing parts, drain the junk gas, then see how it runs.

 

[Springer2269]

the first thing I did was flush tank and filled with premium after it wouldn’t start the first day, I’ve also checked the timing. Great idea I’ll try a heat gun tomorrow to see if there’s a dead cylinder. Car ran strong when it was put away, things happen and it just got neglected. Thanks again

 

[Oldmanmopar]

Changing the plugs? check the firing order

 

[Springer2269]

Changing the plugs? check the firing order

Did one plug at a time wires are correct. A few plugs were black with carbon and a few were wet, that’s why I put new plugs in. Since it’s running identical with the new plugs as it did with the old plugs I figured wires, cap or rotor is my next guess.

 

[Oldmanmopar]

Make sure a pushrod didn't pop out of a rocker. Seen that happen after sitting and the lifter collapsed. It won't tick if its not in the rocker

 

[Springer2269]

Make sure a pushrod didn't pop out of a rocker. Seen that happen after sitting and the lifter collapsed. It won't tick if its not in the rocker

Ok , I’ll pull valve cover tomorrow or Monday. Thanks

 

[j par]

I'd pull the carburetor and blast it with a can or two of carb cleaner...

 

[Springer2269]

I'd pull the carburetor and blast it with a can or two of carb cleaner...

That’s on my list of things to try but I hate working on carbs.

 

[Springer2269]

That’s on my list of things to try but I hate working on carbs.

Thanks

 

[Springer2269]

Check the firing order. 5 & 7 get mixed easy.

With the engine running I pulled off each plug wire, the second cylinder on the passenger side make no difference with it on or off.
Am I correct in thinking push rod or lifter problems. Thanks

 

[Inertia]

I'd pull the plugs, check that particular plug.
If it's soaking wet (gas), could be bad plug, more likely wire, cracked/carbon tracked cap maybe.
If it's dry, or oil soaked, rockers/pushrods would be my next stop.
Compression test.
Good luck

 

[Scody21]

The worst thing you can do to these old motors is crank them for oil pressure. With the oil pump not spinning fast enough to move oil at cranking RPM. If the motor had an external oil system, that is one thing. But with a stock style motor/ oiling setup. Just start the motor.

 

[AJ/FormS]

Quit throwing parts at it and
just do a compression test. Like Inertia said.

 

[Springer2269]

Quit throwing parts at it and
just do a compression test. Like Inertia said.

Compression testing this week, motor only has 1800 miles on it. Going to check valve train first.