Rover V8 wont start???

[kayos]

I have a Marlin Roadster with a 3.5 Rover V8 fitted, with holly carb. No problems untill the weekend when I tried to start it and it wont even fire (turns over fine). I have petrol and a good spark, any ideas what it could be?

Edited by kayos on Tuesday 16th January 10:25

[GreenV8S]

Are the petrol and spark both getting to the plug?

[That Daddy]

flooded maybe,as the holley got autochoke?

[kayos]

PETROL AND SPARK AT THE PLUG, I can only think its flooding but have dried it out for a week and still wont fire?

[That Daddy]

choke flap stuck over,check its free wedge open crank,try this.

[steve_d]

Try holding the plug lead away from the top of the plug whilst cranking. By all accounts the bigger gap it has to jump can cause a bigger spark in the plug. It also proves the plug is sparking whilst under compression.

Steve

[falcemob]

Have you tried cleaning and drying the plugs or fitting new ones, even hold them over a gas burner for a few seconds to heat them a bit then refit.
Have to tried a compression test?
When did the engine last run and how long was the gap before it wouldn't start?

Edited by falcemob on Tuesday 16th January 13:41

[digger man]

falcemob said:

Have you tried cleaning and drying the plugs or fitting new ones, even hold them over a gas burner for a few seconds to heat them a bit then refit.
Have to tried a compression test?
When did the engine last run and how long was the gap before it wouldn't start?

Edited by falcemob on Tuesday 16th January 13:41

How long has the fuel stood, petrol has a shelf life.

[That Daddy]

digger man said:

falcemob said:

Have you tried cleaning and drying the plugs or fitting new ones, even hold them over a gas burner for a few seconds to heat them a bit then refit.
Have to tried a compression test?
When did the engine last run and how long was the gap before it wouldn't start?

Edited by falcemob on Tuesday 16th January 13:41

How long has the fuel stood, petrol has a shelf life.

[kayos]

It ran fine, I parked up, left it for a couple of weeks and ..nothing, I have had all the plugs out, cleaned and gapped. Left them out for a few days to dry the bores out, changed the disributor cap and rotor arm, tried again but it just wont fire. Dont know what else to try.

[GreenV8S]

New plugs. Sometimes you can dry them out and clean them, but it's hit and miss in my experience. For the sake of twenty quid eliminate that as a potential problem.

[falcemob]

I had a similar problem once and changed everything, points, condenser, coil, dizzy cap, all the plug leads and in the end it was the plugs.

[kayos]

Thanks all, I will try the plugs at the weekend.

[that daddy]

Nice set of NGK,s if your gonna.

[kayos]

It works, replaced the plugs and HT leads and it sprung into life, and on a sunny day too. Ta for the advice.

[tr7v8]

The RV8 seems to do this after it's been stood for a while, I think the plugs get wet whilst the lifters pump up & once flooded it stays flooded. My 7 has done it a couple of times.