Sparkplug ???

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Mar 23, 2014 | 10:04 PM

#16

bruno2

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From: Broken Arrow , OK

Quote:

Originally Posted by Gary Lewis

I got a call from James on New Years Day saying he was just calling a friend to wish them a happy new year. So, I'm supposed to bite my tongue and let a friend of mine walk into that buzz saw? Yeah, right!

I told him I would buy him a 6 pack if he changed the plugs.I probably better show up with a 12 pack.

Mar 23, 2014 | 10:14 PM

#17

Gary Lewis

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From: Northeast, OK

Yep, and tell him he gets a can after every plug is changed. He will need it.

By the way, didn't we modify a plug socket on the lathe? Made it narrower and shorter? If so, you may need it.

I'm trying to decode plug heat ranges, but am not getting there very fast. Hopefully Jim will provide the answer soon.

Mar 23, 2014 | 10:18 PM

#18

bruno2

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From: Broken Arrow , OK

What brand are they?

Mar 23, 2014 | 10:21 PM

#19

ArdWrknTrk

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From: EXTREME southwest CT

Quote:

Originally Posted by bruno2

The "M" designation is the compact.So the BPMR6F is a compact. The 6 seems to be the common heat range. I am trying to decipher some of the others on the list also. The BPM6F is the same, but non resistor. That may interfere with the radio so it's out.

I need to find out what Accel's heat number is in their coding.

Remember that American heat ranges are the opposite of the rest of the world.
This was stated in yesterday's NGK link on heat ranges.

You probably want a 5/8 socket to gain the most clearance.
Peanut or lawnmower style plug.

Mar 23, 2014 | 10:26 PM

#20

Gary Lewis

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From: Northeast, OK

Quote:

Originally Posted by bruno2

Lets use the key and figure out the cross here as far as what is what.

These are the NGK plugs a generic cross reference says cross with the Accel 276 and 276S. The "S" designates "short".

I found these crossing to the 276S at this site:

Bosch HS7E
Champion DJ7Y
Champion RDJ7Y
Denso T14PR-U
Denso T20MPU
Denso stk 5020
NGK UR4
NGK 5950
NGK BPMR6F
NGK 1270
NGK BPM6F
NGK stk 6630

Looks like either we used the same site or at least they agree on the last several. What brand do you want to use? We can then find out which way to go in their numbering scheme to go a step or two colder.

Mar 23, 2014 | 10:34 PM

#21

bruno2

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From: Broken Arrow , OK

Quote:

Originally Posted by Gary Lewis

Yes we did modify one. Hindsight being 20/20 I should have taken those copper header gaskets and matched them to the outside of the header flange so there wouldn't be any interference like we were having. That extra gasket meat hanging over the sides after installation sure caused a lot of trouble. I could have drawn it out with a sharpie and taken a dremel tool or die grinder to it and not had as hard of a time with the plugs.

Mar 23, 2014 | 10:35 PM

#22

bruno2

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From: Broken Arrow , OK

I wonder what STK means?

Mar 23, 2014 | 10:38 PM

#23

ArdWrknTrk

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From: EXTREME southwest CT

UR4/6630 are long plugs

5950 is BPM6F
1270 is the resistor version, BPMR6F

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Mar 23, 2014 | 10:43 PM

#24

ArdWrknTrk

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From: EXTREME southwest CT

Quote:

Originally Posted by bruno2

I wonder what STK means?

It's just miss copied somewhere.
The four digit numeric identifier is their stock number.

http://www.clubplug.ca/static/pdf/NGK_XREF.pdf

Mar 23, 2014 | 10:45 PM

#25

bruno2

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From: Broken Arrow , OK

Quote:

Originally Posted by ArdWrknTrk

UR4/6630 are long plugs

5950 is BPM6F
1270 is the resistor version, BPMR6F

How did you figure that out?

Mar 23, 2014 | 10:49 PM

#26

ArdWrknTrk

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From: EXTREME southwest CT

Quote:

Originally Posted by bruno2

How did you figure that out?

Did you read the chart I just posted?

6630/UR4 are plugs I used to run in my 5.0 H.O. notch.

Mar 23, 2014 | 10:52 PM

#27

bruno2

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From: Broken Arrow , OK

In the process now. I have been reading it here and there. I see where you got that info now.

Mar 23, 2014 | 11:08 PM

#28

bruno2

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From: Broken Arrow , OK

Here is a chart that compares heat ranges of a few different brands:Heat Range Conversion Chart

Accel goes the opposite way of NGK of course, but I couldn't find if it was 1-10 or 1-infinity, but I guess it doesnt matter a 275 or 274 will be cooler. I just need to see if the crosses I listed above for Accel to NGK will jive with what I am thinking. IOW if I cross an Accel 275S to NGK it should be BPMR7F I hope.