Read my plugs please
12-19-2018 | 05:50 PM
#23
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Joined: Apr 2014
Posts: 650
Likes: 123
From: North Florida
Great video . Now all you need is a hot Rodder from the 60 ‘s that can read a plug in the dark. I have an old Hemi specialist that I take mine to. He can tell me what the weather was like by looking at my plugs. No video can teach that. Most important is to back the timing down a hair until you get the ratio close and the heat range. Nice post 14apache.
12-19-2018 | 08:25 PM
#26
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Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
Thats was Don Terrel of speedtalk and racing secrets. You really do not hear much about him currently like years past, I actually seen that video before and he use to sell packages on building engines and air flow , head design and so forth. Just saying. .
12-20-2018 | 09:48 AM
#27
Platinum Member
Joined: Apr 2005
Posts: 2,150
Likes: 15
From: Northport N.Y.
I know these images are pretty much useless, I was just curious if there was some indication of whats going on (besides the wide band) due to the white insulator and the white deposits.
Here are my AFR numbers before I re-jetted,
in gear:
650 (Idle) 13.2
1500 13.2
2000 13.4
3000 13.6
3600 13.9
4000 12.5
5100 WOT 12.8-13
I haven't written down my readings after the re-jet but I went up two sizes on both the primary and secondary's to get the numbers down some, which got most of the numbers down to the high 12's/low 13's. Idle out of gear is about 14. I will have to do write down some more readings on my next run. I was just concerned when I pulled those plugs and saw bright white and the deposits, haven't seen that before.
Jim
Here are my AFR numbers before I re-jetted,
in gear:
650 (Idle) 13.2
1500 13.2
2000 13.4
3000 13.6
3600 13.9
4000 12.5
5100 WOT 12.8-13
I haven't written down my readings after the re-jet but I went up two sizes on both the primary and secondary's to get the numbers down some, which got most of the numbers down to the high 12's/low 13's. Idle out of gear is about 14. I will have to do write down some more readings on my next run. I was just concerned when I pulled those plugs and saw bright white and the deposits, haven't seen that before.
Jim
12-20-2018 | 12:40 PM
#29
Registered
Joined: Jun 2011
Posts: 1,210
Likes: 143
I know these images are pretty much useless, I was just curious if there was some indication of whats going on (besides the wide band) due to the white insulator and the white deposits.
Here are my AFR numbers before I re-jetted,
in gear:
650 (Idle) 13.2
1500 13.2
2000 13.4
3000 13.6
3600 13.9
4000 12.5
5100 WOT 12.8-13
I haven't written down my readings after the re-jet but I went up two sizes on both the primary and secondary's to get the numbers down some, which got most of the numbers down to the high 12's/low 13's. Idle out of gear is about 14. I will have to do write down some more readings on my next run. I was just concerned when I pulled those plugs and saw bright white and the deposits, haven't seen that before.
Jim
Here are my AFR numbers before I re-jetted,
in gear:
650 (Idle) 13.2
1500 13.2
2000 13.4
3000 13.6
3600 13.9
4000 12.5
5100 WOT 12.8-13
I haven't written down my readings after the re-jet but I went up two sizes on both the primary and secondary's to get the numbers down some, which got most of the numbers down to the high 12's/low 13's. Idle out of gear is about 14. I will have to do write down some more readings on my next run. I was just concerned when I pulled those plugs and saw bright white and the deposits, haven't seen that before.
Jim
Regarding those AFRs:
Idle AFR is fine
1500 AFR is fine
2000 AFR should be closer to 13.0 vice 13.4
3000 AFR is starting to spook me. Engine has a substantial load by this time. I'd be closer to 12.8-13.0
3600 AFR is hurting the engine. I'd wager most of your damage is done here. 12.8 or richer please.
4000 AFR is ok
5100 AFR is mildly lean in my book. It should be 12.5 ish or richer.
Last edited by Trash; 12-20-2018 at 06:39 PM.
