Volvo RWD 120-130 Forum

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misfire at cruise 120-130

In the last few days my 64 wagon with a B-18 has started a nagging miss or roughness at cruise speeds. Her is what I have checked:

New plugs NGK BP8HS, properly gapped.

Fresh ignition wires.

Points replaced and gapped.

Timing is 16 deg. BTDC static.

Mixture is pretty close to ideal.

Valves are set to .018 set hot.

Revs nicely from idle, no bog, no backfire.

Pulled float bowl covers and set floats, Cleaned and blew out jet nozzle tubes from both directions.

Cleaned and serviced dampers with ATF.

Have not changed cap and rotor, will do that tomorrow as the parts store is closed. Car runs fine otherwise starts good with minimal choke. Idles just fine and runs like crazy under acceleraton.

What have I missed? Distributor advance weights stuck maybe (I don't thinks so since it starts and idles nicely?

Only thing I did recently was change that damn leaking gas tank (Thanks Lee!!!)

HELP!!!

Mike






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New misfire at cruise [120-130]
posted by  twombo  on Fri Nov 26 14:13 CST 2004 >


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