Losing Power

[wedgtable]

When i put my foot down the car loses power at 4000RPM and I get nothing until I lift my foot off to about half way at which point she will continue to rev, if I put my foot back down she just stops again.

Any ideas???So embarrassed as I was showing off to a friend who owns a bkster.

Cheers Mike

[grahamw48]

They all do that when you're showing off sir ...it's called 'sod's 3rd law of anti-motion'.

Seriously though....I haven't a clue....apart from fuel starvation ? spark starvation ?

[zcar]

Mike,
Partially blocked fuel filter. When was it last changed? I had a very similar problem on a 260Z I used to own.
Nick

[wedgtable]

Fuel filter hasn't been changed since I had the car so very good point to start at.

Bloody laws and rules ruining my fun.

[convert]

I've just had a similar problem on the 350i. Mine started coughing and farting above 4K; turned out to be the dizzy cap. Changed it for a Lucas one, all running fine now.

[rev-erend]

As well as the other suggestions - check the wires under the bonnet .. maybe something is just loose.

Sounds like it needs a good service !

[matt-man]

Hey Mike,

Sounds silly but have you changed the leads recently? I was getting random misfires and changed plugs, leads, dizzy + rotor and it vanished....

Cant do any harm and its all about 50 notes...good luck and get it sorted soon for a blast!!!

[rev-erend]

Take a look at the motor running in the dark .. you can see any sparks that should not be there that way !

[jmorgan]

Had a coil limit me once. Throttle pot OK?

[wedgtable]

Cheers guys,

I am gonna get a new fuel filter, leads plugs rotor and dizzy, new induction kit too as I noticed a bit of gunge at the entrance to the plenum, thinking the seal is poor around the air filter. Thank you VISA.

Any ideas on how much a coil is? are they all local motor factor parts and are they listed on the wedge pages?

Edited by wedgtable on Friday 9th May 10:47

[adam quantrill]

That gunge sounds like the stuff that goes up the crankcase breather and into the side of the plenum. It might imply that the pipework/flame trap needs a good clean - if it gets totally gunked you can get crankcase pressurisation and oil leaks. This shouldn't affect power, though.

Another problem might be fuel pressure due to pump or regulator - get that checked after the new filter is installed.

Edited by adam quantrill on Friday 9th May 11:53