Thread: Smokey at Idle Advice

I am not a rover V8 person (love the motor, just not a spanner man), but in general it sounds a little bit like valve guides at least

Paul

G`day Peter ,

Could be more than one thing going on .

The smoke could be a crankcase vent problem .

The oil loss from valley rear could be just a crook seal or a headgasket or a crank vent problem , no order .

If the tin valley moves up and down when the engine is running as in breaths like a your chest does probably a head gasket problem , though vent can effect it also .

Being that your not familiar with the engine as yet it would possibly be a good idea to give it a dry and wet compression test , which will give an idea of the condition of its internals .

If mine , when it was running temp , i`d hold it at around 3000 rpm for 5 or 10 seconds and watch and listen . It may or may not tell anything .

Cheers

Hi Peter

Please indulge me, is the smoke issuing out of the exhaust or off the exhaust?

PLR's test will tell you if you have an oil ring problem, to check for the valve guide problem suggested, travel down a reasonable gradient with with no pressure on the go pedal, at the bottom apply the power and check for the dreaded blue plume.

Cheers JML

Hi,

Thanks for the input. I will check out your suggestions.

Yes it is coming out the exhaust.

This evening I warmed it up, I pulled the pipes off the rocker covers that go to the carbies and there is far bit of smoke coming out of the RH bank, 10 times as much as the LH bank.

Cheers Peter

I'd start with a head gasket failure/s between the fire rings and the valley cavity. The smoking / case fumes can be caused by this. I had a D1 (Early one) that the owner was told the engine was no good, pulled the heads and lo and behold 5 of 8 cylinders were leaking into the case, they would suck in oil on the intake stroke too. As PLR says, hold it at 2 to 3 K RPM with no load and see how much smoke comes out the exhaust. I would pull the heads first and get back to us

JC