11 replies to this topic

[chris_gilly]

hi

i know this has been asked a lot of times but was is the spark plug gap for a standard mini city 998cc 1989!!
ive searched everywere and totally random stuff comes up.
sorry to waste your time

thanks!!

[day101]

buy a haynes manual

[Ouster]

.8 mm rings a bell.

[taffy1967]

1000 engine (99H) 1987 on (Champion N12YCC or N12YC)

Champion N12YCC ............................ 0.8 mm (0.032 in)

Champion N12YC ............................... 0.6 mm (0.024 in)

Personally I prefer NKG plugs myself though. So BP6ES would be the ones to fit I think?

[chris_gilly]

1000 engine (99H) 1987 on (Champion N12YCC or N12YC)

Champion N12YCC ............................ 0.8 mm (0.032 in)

Champion N12YC ............................... 0.6 mm (0.024 in)

Personally I prefer NKG plugs myself though. So BP6ES would be the ones to fit I think?

cheers people thanks

[fandango]

1000 engine (99H) 1987 on (Champion N12YCC or N12YC)

Champion N12YCC ............................ 0.8 mm (0.032 in)

Champion N12YC ............................... 0.6 mm (0.024 in)

Personally I prefer NKG plugs myself though. So BP6ES would be the ones to fit I think?

What would be the gap setting needed for NGK BPR6ES? I've searched hi and lo on the interweb and come up empty handed.

Fresh out of the box they measure up as 0.032in / 0.81mm

Thanks in advance

Edited by fandango, 11 August 2008 - 06:47 PM.

[taffy1967]

1000 engine (99H) 1987 on (Champion N12YCC or N12YC)

Champion N12YCC ............................ 0.8 mm (0.032 in)

Champion N12YC ............................... 0.6 mm (0.024 in)

Personally I prefer NKG plugs myself though. So BP6ES would be the ones to fit I think?

What would be the gap setting needed for NGK BPR6ES? I've searched hi and lo on the interweb and come up empty handed.

Fresh out of the box they measure up as 0.032in / 0.81mm

Thanks in advance

Well you shouldn't really be using NGK BPR6ES Spark Plugs on a 1989 Mini Mayfair. The 'R' denotes that they are resistor plugs for cars fitted with electronic ignition. I'd say NGK BP6ES would be more suitable?

I know that the plug gap for a 1275 Mini & Mini Cooper is 0.85mm (0.035in).

[taffy1967]

However saying that and now just double checking in the latest Haynes manual (1969-2001), it actually states: -

Ignition System

Spark Plugs: -

Type:

All models up to 1986 ................................. NGK BPR6E
998 cc engine models, 1987 to 1989 ............ NGK BP4EY
998 cc engine models, 1989 onwards ........... NGK BPR4ES
1275 cc engine models, 1991 onwards .......... NGK BPR6E

Electrode Gap .............................................. 0.8 mm .......... (0.032 in)

But I'm not sure that I absolutely believe the new Haynes manual because it contradicts the information that's recorded in my actual Mini handbook.

Edited by taffy1967, 11 August 2008 - 07:29 PM.

[BJst416]

I would have guessed that a range 4 plug will be too hot for a mini

6 is the one to use in my opinion.

BPR (resistance) will only make a difference if you have electronic ingnition and you experience whining through your stereo.

I have the Petronix setup and use NGK BP6 with 0.035" gaps without problems.

This article might help some one understand spark plug heat ranges

A bit off topic but, what heat range are the forced induction minis using?

[taffy1967]

I think Somerfords pdf on 'Spark Plugs' is probably more accurate too: -

http://www.somerford...tter-Models.pdf

[fandango]

I think Somerfords pdf on 'Spark Plugs' is probably more accurate too: -

http://www.somerford...tter-Models.pdf

Thanks for all of your knowledgeable replies. I've ended up with the BPR after a local motor factor looked up the correct plugs.

Having just looked at the original Austin Rover handbook it suggests GSP 4382 with a gap of 0.025in/0.65mm.

I am now somewhat confused... I'm tempted to use the plugs I have, with the current 0.032in gap.

Let me know now before I do any damage!

[taffy1967]

Well I'd probably stick with what the original Austin Rover Handbook states, because the information is correct for your type of Mini.

The gap is slightly larger on those plugs because they suit a range of cars I should say?