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4k Running On 2 Cylinders

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Ok so i took the ke70 for thrash and now it wont run on all 4 pots, 3 and 4 have died. Runs on all 4 over 3,500 RPM but under that its really lumpy.

 

Has spark and fuel so I'm suspecting rings blown out or maybe valve sticking open or something along those lines.

 

Any suggestions ?

Edited by AE70

ditch it for one that's running on all cylinders all the time...

  • Author
Cap, leads, valve clearances, gunged up plugs? Done a compression test?

Cap is good, swapped some of the leads around its still shitty on 3 and 4. Compression test tomorrow.

 

Bent push rod maybe ?

You forgot that it wasnt a 4age didnt you Des.

  • Author

Valve bounces at 6,500 rpm. So compression test tomorrow after work and i will rip the rocker cover off too.

don't rule out popped head gasket, somewhere between 3rd and 4th!!

those spark plug things, they can crack and leak oil,

caused my mates 4k to run on 3 when he had a broken one

  • Author

I couldn't get the compression tester from work so I'm just going to pull the inlet manifold off in the mean time.

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