rnsc
New Member
- Joined
- Jul 23, 2019
- Messages
- 9
- Reaction score
- 0
- Points
- 1
- Location
- NY
- Vehicle Year
- 1998
- Make / Model
- Ranger2.5L2WD
- Transmission
- Manual
After 21 years and about 210,000 miles, just took out what are clearly original equipment plugs and wires. Tons of rust (Plugs and surrounding them, shattering when I break it loose), center electrode just a pointy nub, ground electrode eroded back so that it is not above the center electrode. About 0.090 gap.
Which brings me to torque. I know most people do it by feel, but I got into trouble doing that on a subaru, so now I torque them.
Two questions.
(1) Ford in the big green 1998 ranger workshop manual volume 1 page 202-07A-8 says to torque them to 9-20 Nm (84-180 lb-in).
NGK gives a similar range (10-20) for Aluminum heads, but says 15-25 for Iron heads. These are Iron heads! I I followed NGK I would be using the Iron head column. Which should I use?
(2) Given all of the rust to overcome, should I shoot on the high side? I normally torque to the mid-point (I would do 15 lb-ln or 20 lb-in depending on the answer to #1, but should I go a little higher due to rust grinding? These of course are taper plugs.
Thank you!
--Ray
Which brings me to torque. I know most people do it by feel, but I got into trouble doing that on a subaru, so now I torque them.
Two questions.
(1) Ford in the big green 1998 ranger workshop manual volume 1 page 202-07A-8 says to torque them to 9-20 Nm (84-180 lb-in).
NGK gives a similar range (10-20) for Aluminum heads, but says 15-25 for Iron heads. These are Iron heads! I I followed NGK I would be using the Iron head column. Which should I use?
(2) Given all of the rust to overcome, should I shoot on the high side? I normally torque to the mid-point (I would do 15 lb-ln or 20 lb-in depending on the answer to #1, but should I go a little higher due to rust grinding? These of course are taper plugs.
Thank you!
--Ray