Thread: 2.25 petrol - an annoying miss

Regarding a leaking inlet manifold, what's the best method for diagnosis?

Cheers,

Sam

Spray some start ya barstard around the head/manifold join whilst the engine is running, and see if revs increase...

A new Bosch gl103 in, yet the miss still persists... I will move into plugs tomorrow, and then check out the manifold leak.

Cheers

Sam

Are you running a straight 12volt coil or a 12 volt resistor coil, I.E. Bosch 12 or 12r as they only had a straight 12 volt one, how old are your leads? Carbon type need to be replaced every 2-3 years max.

Plugs at 32 thous inch that's about .8 from memory.

Originally Posted by series3

A new Bosch gl103 in, yet the miss still persists...

I looked up thatCondensor on the Bosch web site and it's for the Land Rover stage one V8, I don't know if that matters.

I would be now looking at the leads, condenser and making sure the points gap is spotless.


Check that the points gap isn't closing up as the rotor turns around, due to a worn distributor.

One or two of the plugs maybe shorting out under load, look up the correct heat range plug for your ambient temperature, get a range hotter then recommended only if the engine is using oil.
.

Originally Posted by wrinklearthur

I looked up that coil on the Bosch web site and it's for the Land Rover stage one V8, I don't know if that matters.
...
.

That GL103 is a condenser, and according to the Bosch website, is the right one. (Condensers are not critical - if it fits it will work).

John

My coil is either a GT40 or GT40r, i cannot remember which at the moment, about 3-4 years old. I'll check later tonight.

My leads are now new Boschies, 2 days old.

I'm leaning towards the plugs now being either wrong, buggered or sooted up. Any reccomendations on replacements?

About time most of this stuff got replaced anyway!

Sam

Ref;
http://ngkntk.co.uk/wp-content/uploa...t-2013-new.pdf

LAND ROVER
DEFENDER 2.5 6 90Õ BP6E 7529 BP6ES 7811 0.8
3.5 8 90Õ BPR5E 7075 BPR5ES 7422 0.9
DISCOVERY 2.0 4 93Õ06/97 BKR6E 6962 BKR6ES 3783 0.9
1 & 2 3.5 8 CARB 89Õ BP6E 7529 BP6ES 7811 0.8
3.5 8 INJECTION 89Õ BPR6E 6464 BPR6ES 7822 0.9
3.9 8 3950cc 94Õ98 BPR6E 6464 BPR6ES 7822 0.9
4.0 8 3950cc 09/98Õ PFR6N-11 3546 X
4.0 8 FACELIFT MODEL 3950cc 06/02Õ PFR6N-11 3546 X
DISCOVERY 3 4.4 8 10/04Õ IFR5N10 7866 X
FREELANDER 1 1.8 4 18 K16 10/97Õ06/05 PFR6N-11 3546 X
2.5 6 KV6 09/00Õ06/05 PFR6N-11 3546 X
FREELANDER 2 3.2 6 09/06Õ ILFR6B 6481 X
SERIES I,II&III, 2.3 4 7:1 COMP Õ85 B5ES 6410 0.8
90 & 110 2.3 4 8:1 COMP Õ85 BP5E 4669 BP5ES 6511 0.8
2.5 4 08/85Õ BP6E 7529 BP6ES 7811 0.8
2.6 6 B6ES 7310 0.6
3.5 8 Õ86 BP5E 4669 BP5ES 6511 0.6
3.5 8 86Õ BP6E 7529 BP6ES 7811 0.6
RANGE ROVER 1 3.5 8 12.7mm Reach Plugs CARB Õ76 BP5HS 4111 0.6
3.5 8 19mm Reach Plugs CARB 76Õ85 BP5E 4669 BP5ES 6511 0.6
3.5 8 INJECTION INJECTION 85Õ10/89 BPR6E 6464 BPR6ES 7822 0.8
3.9 8 10/89Õ10/95 BPR6E 6464 BPR6ES 7822 0.9
4.2 8 10/92Õ12/94 BPR6E 6464 BPR6ES 7822 0.9
RANGE ROVER 2 4.0 8 P38 Model 09/94Õ12/98 BPR6E 6464 BPR6ES 7822 0.9
4.0 8 P38 Model 99Õ PFR6N-11 3546 X
4.6 8 P38 Model 10/94Õ12/98 BPR6E 6464 BPR6ES 7822 0.9
4.6 8 P38 Model 99Õ PFR6N-11 3546 X
RANGE ROVER 3 4.4 8 BMW M62 01/02Õ04/05 BKR6EQUP 3199 X
RANGE ROVER 4 4.2 8 SUPERCHARGED AJ41 04/05Õ IFR5N10 7866 X
4.4 8 AJ41 04/05Õ IFR5N10 7866 X
5.0 8 SUPERCHARGED AJ133 07/09Õ ILKAR6C10 95843 X
RANGE ROVER 4.2 8 SUPERCHARGED AJ41 06/05Õ IFR5N10 7866 X
SPORT 4.4 8 AJ41 06/05Õ IFR5N10 7866 X
5.0 8 SUPERCHARGED AJ133 04/09Õ ILKAR6C10 95843 X