Volvo RWD 140-160 Forum

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hot exhaust 140-160 1973

posted by  someone claiming to be beanbag on  Sun Aug 31 15:26 CST 2003 [RELATED]

my 1973 B20F,144,when it is running for awhile,i noticed the exhaust manifold at the 2nd and 3rd cylinder get a glowing red,is this normal to get so hot?the valves have been adjusted...thank you........








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hot exhaust 140-160 1973

posted by  walrus3 on  Sun Aug 31 16:44 CST 2003
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last visit: Mon Dec 2 14:20 CST 2013
[RELATED]

Another possibility is retarded ignition. I run mine at about 20° BTDC
with everything hooked up. That is about what you get if you adjust it
by ear for fastest idle and if you don't get pinging, you can advance
it even further and will probably get more power and cooler exhaust.
When it fires late the fuel is still burning when it comes out the exhaust.
--
George Downs, The "original" Walrus3, Bartlesville, Oklahoma








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hot exhaust 140-160 1973

posted by  AzurE on  Sun Aug 31 16:31 CST 2003
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sounds like they are running lean, check the injectors w/ an ohm meter,
switch #2 & #3 injectors w/ #1 & #4, check fuel pressure.







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