Jump to content


Photo
- - - - -

Spark Plug Gap - High Compression Engine


  • Please log in to reply
18 replies to this topic

#1 Agus1601

Agus1601

    Mini Mad

  • Noobies
  • PipPipPipPip
  • 148 posts
  • Location: Buenos Aires
  • Local Club: La Tribu Mini

Posted 25 March 2018 - 02:14 PM

HI guys! I want to know the gap used in an engine that is H/C

 

Also would like to buy some new spark plugs

 

Thanks

Agustin



#2 Dusky

Dusky

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 5,322 posts
  • Location: Belgium

Posted 25 March 2018 - 02:51 PM

I use no gap( well,you cant Gap Them) and run brisk Multisparks, but someone Will come and shoot me for saying that:p

#3 nicklouse

nicklouse

    Moved Into The Garage

  • TMF+ Member
  • PipPipPipPipPipPipPipPipPipPipPip
  • 17,944 posts
  • Location: Not Yorkshire
  • Local Club: Anonyme Miniholiker

Posted 25 March 2018 - 03:00 PM

same gap as standard. unless the plug makers states differently.

 

Also what do you mean by High compression?



#4 ukcooper

ukcooper

    Camshaft & Stage Two Head

  • Members
  • PipPipPipPipPipPipPipPip
  • 1,625 posts
  • Location: Stoke on Trent

Posted 25 March 2018 - 04:35 PM

1275 up 1.0mm gap
998 0.8mm gap

points or electric ignition. that's what I use. for em all.

ngk for plugs.

#5 miniireland

miniireland

    Mini Mad

  • Members
  • PipPipPipPip
  • 175 posts
  • Location: Ireland

Posted 25 March 2018 - 04:57 PM

BP6ES standard gap



#6 Retroman

Retroman

    One Carb Or Two?

  • Traders
  • PipPipPipPipPipPipPip
  • 967 posts
  • Location: Sunny Sabden
  • Local Club: CDMC

Posted 25 March 2018 - 05:03 PM

HI guys! I want to know the gap used in an engine that is H/C

 

Also would like to buy some new spark plugs

 

Thanks

Agustin

Has it got electronic ignition?

 

How many cc's ?

 

Is it a standard engine? or modified?



#7 Agus1601

Agus1601

    Mini Mad

  • Noobies
  • PipPipPipPip
  • 148 posts
  • Location: Buenos Aires
  • Local Club: La Tribu Mini

Posted 27 March 2018 - 12:11 PM

same gap as standard. unless the plug makers states differently.

 

Also what do you mean by High compression?

Atm I don´t know my engine compression and will be the next step to see on my car. I am running too rich with a single hs4 and really dont know the problem.

 

High Compression was 160lb when I once had done it



#8 Agus1601

Agus1601

    Mini Mad

  • Noobies
  • PipPipPipPip
  • 148 posts
  • Location: Buenos Aires
  • Local Club: La Tribu Mini

Posted 27 March 2018 - 12:12 PM

 

HI guys! I want to know the gap used in an engine that is H/C

 

Also would like to buy some new spark plugs

 

Thanks

Agustin

Has it got electronic ignition?

 

How many cc's ?

 

Is it a standard engine? or modified?

 

It does have an electronic 123 ignition, don´t know the cv´s, it is a 1310cc with some work done, it pulls easy 145km/h on the freeway, Max top speed 162 km/h gps



#9 imack

imack

    Camshaft & Stage Two Head

  • TMF+ Member
  • PipPipPipPipPipPipPipPip
  • 1,872 posts
  • Location: Orpington, Kent

Posted 27 March 2018 - 08:18 PM

When I had my MED 1380 set up on the rolling road by Peter Baldwin I was advised to run standard BP6ES and standard gaps if using a normal electronic ignition system. He said only open up the gaps if using a megajolt type setup.

#10 Agus1601

Agus1601

    Mini Mad

  • Noobies
  • PipPipPipPip
  • 148 posts
  • Location: Buenos Aires
  • Local Club: La Tribu Mini

Posted 27 March 2018 - 09:41 PM

When I had my MED 1380 set up on the rolling road by Peter Baldwin I was advised to run standard BP6ES and standard gaps if using a normal electronic ignition system. He said only open up the gaps if using a megajolt type setup.

Thanks a lot for the advice, so I will use champion N9Yc or NGK BP6ES



#11 Retroman

Retroman

    One Carb Or Two?

  • Traders
  • PipPipPipPipPipPipPip
  • 967 posts
  • Location: Sunny Sabden
  • Local Club: CDMC

Posted 27 March 2018 - 10:22 PM

You should find the NGK BP6ES will be better.

 

Electronic ignition is not as fussy about plug gaps, 0.035" should be fine.

 

What makes you say it running rich  ?



#12 Agus1601

Agus1601

    Mini Mad

  • Noobies
  • PipPipPipPip
  • 148 posts
  • Location: Buenos Aires
  • Local Club: La Tribu Mini

Posted 28 March 2018 - 04:59 PM

You should find the NGK BP6ES will be better.

 

Electronic ignition is not as fussy about plug gaps, 0.035" should be fine.

 

What makes you say it running rich  ?

This allows me to say it is far too rich

Attached Files



#13 carbon

carbon

    Up Into Fourth

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 2,590 posts
  • Location: UK

Posted 28 March 2018 - 06:11 PM

If it is running really rich then possible issues on HS4 are:

- main jet not returning fully up when choke pushed in

- float chamber needle jet not sealing off

- incorrect main jet level

- worn needle (swing type)

- incorrect or modified needle

- badly clogged air filter



#14 nicklouse

nicklouse

    Moved Into The Garage

  • TMF+ Member
  • PipPipPipPipPipPipPipPipPipPipPip
  • 17,944 posts
  • Location: Not Yorkshire
  • Local Club: Anonyme Miniholiker

Posted 28 March 2018 - 06:23 PM

 

You should find the NGK BP6ES will be better.

 

Electronic ignition is not as fussy about plug gaps, 0.035" should be fine.

 

What makes you say it running rich  ?

This allows me to say it is far too rich

 

hard to tell as you cant see the important bits. need to see the sparking end and the ceramic. 

 

that is just a picture of a dirty spark plug. Sorry.



#15 Agus1601

Agus1601

    Mini Mad

  • Noobies
  • PipPipPipPip
  • 148 posts
  • Location: Buenos Aires
  • Local Club: La Tribu Mini

Posted 28 March 2018 - 10:18 PM

 

 

You should find the NGK BP6ES will be better.

 

Electronic ignition is not as fussy about plug gaps, 0.035" should be fine.

 

What makes you say it running rich  ?

This allows me to say it is far too rich

 

hard to tell as you cant see the important bits. need to see the sparking end and the ceramic. 

 

that is just a picture of a dirty spark plug. Sorry.

 

I can check it out again if you want to, and also was thinking of buying some new ones, but would like to do some twerking on my carb to get it perfect






1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users