rough running

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06-30-2005, 07:21 PM

sidneype

2nd Gear

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rough running

i have 1985 defender 110 that has just started running rough. it is misfiring and from exhaust black carbon smoke coming out. any suggestions it is a 2.5 petrol.
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09-10-2008, 02:53 AM

kurtdaniel

4wd Low

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RE: rough running

It could be the valves making the knocking sound and this could cause black smoke on your exhaust if it goes bad.

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09-10-2008, 07:49 AM

Disco Mike

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RE: rough running

Check or replace your plugs and wires, same with the cap and rotor. Do a compreson test to rule out valves, check for vacuum leaks, consider decarboning the engine and check your timing.

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