Thread: 95 3.9v8 gets fluttery

Well the odds are it is an ignition problem if it happens on both petrol and gas.

Maybe you have some seized open injectors and some plugs are loading from richness.

BUT first i would go through the usual suspects ,as it is all pretty cheap. Plugs, leads, dizzy cap, rotor.

Also if you have headlights and aircon on while idling for long periods , its likely that alternator output at idle is not matching the draw from the battery and it is slowly sinking in volts. Aircon fans =7amps each, blower another 5-7, headlights about 10 amps. How old is the battery?
Regards Philip A

Originally Posted by matthewk

need some help understanding whats going on

got the 95 3.9 v8, i was in macas drive through with air con on waiting maybe 10-15mins i found when i left there its was fluttery on acceleration on both pety and gas it had no power whats so ever
also have this problem with the gas on its own too at cold dunno why

only way i can explain how it sounded was like mixing feul with water trying to drive up a stepp hill if that helps

any help be good cheers

matt

Heat soak = crook electrics. Check the plugs for blackness or unusual colour on individual plugs. Check for sparky leaks when its completely dark.

Originally Posted by PhilipA

Well the odds are it is an ignition problem if it happens on both petrol and gas.

Maybe you have some seized open injectors and some plugs are loading from richness.

BUT first i would go through the usual suspects ,as it is all pretty cheap. Plugs, leads, dizzy cap, rotor.

Also if you have headlights and aircon on while idling for long periods , its likely that alternator output at idle is not matching the draw from the battery and it is slowly sinking in volts. Aircon fans =7amps each, blower another 5-7, headlights about 10 amps. How old is the battery?
Regards Philip A

well im running a bosh 500cca no idea of age maybe 1-2yrs old
looking into a new 620cca batt very shortly

plugs and lead would be at most 10-11 months old ngk 8mm petty/gas leads and bps6** plugs

i do now notice a loud tacking sound are the tappets hydrolic? or do you have to set them ya self?

like i said only flutter on petty when super hot and gas is all the time

Then its likely another Lucas coil & amp set is dying. Surprise, that. Could be coil breaking down, try to find a second hand one and swap.

Tappets are hydraulic and will be noisy of your oil pressure is missing, otherwise you could have loose exhaust manifolds or even weak head gaskets. Check manifold bolts, check plugs, do a compression test. Eliminate possibilities one by one. Or find a landy specialist!

Originally Posted by bee utey

Then its likely another Lucas coil & amp set is dying. Surprise, that. Could be coil breaking down, try to find a second hand one and swap.

Tappets are hydraulic and will be noisy of your oil pressure is missing, otherwise you could have loose exhaust manifolds or even weak head gaskets. Check manifold bolts, check plugs, do a compression test. Eliminate possibilities one by one. Or find a landy specialist!

i;ll change a few things over the next 2 weeks and see what improvment i get if nothing then i will have to consult a landy bloke

i did a pressure test just before x mas from memory i think it was either 120psi or 130 there wer all close to it
i do know oils is slight down a tad