Read this plug please
Joined: Mar 2017
Posts: 4,255
Likes: 427
From: Portland, OR
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: Read this plug please
Looks pretty normal. Looks just like the plugs I pulled from my 305 a few days ago. Dyno tuned and running excellent at 186 RWHP.
You have a light tan/whitish insulator without any speckling, no deposits to speak of so it's running hot enough..... I see no problem here.
Do you suspect a problem?
GD
You have a light tan/whitish insulator without any speckling, no deposits to speak of so it's running hot enough..... I see no problem here.
Do you suspect a problem?
GD
Joined: Sep 2005
Posts: 27,899
Likes: 2,437
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Read this plug please
Looks like it idled alot right before it got pulled; not the best circumstances for plug observation. Not very old, probably less than 2k miles.
Is there a reason for asking about it?
Is there a reason for asking about it?
Thread Starter
Junior Member
Joined: Apr 2014
Posts: 58
Likes: 4
Re: Read this plug please
Impressive! Thanks!
The car idled for about 20 minutes before shutdown. And they are not very old.
The reason I asked is because I”m hunting down a hot start problem. I suspect leaking injectors or maybe s weak spark. Just had to be sure that the spark plugs wasn”t the culprit.
The car idled for about 20 minutes before shutdown. And they are not very old.
The reason I asked is because I”m hunting down a hot start problem. I suspect leaking injectors or maybe s weak spark. Just had to be sure that the spark plugs wasn”t the culprit.
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