[6pack] Spark plug torque

[Sally or Dick Taylor]

Darrell---I read years ago that "spark plugs need only be tightened so they don't fall out". I have followed this method without a problem. (Test with a running engine and a soapy water solution, if in doubt). OK, that really doesn't mean just finger tight, but more like the torque one might get from using a 1/4 inch drive ratchet and a one-handed twist. 
It's good to be sure there's no sand has found it's way  onto the plug surface in the head. I blow out the area out beforehand.

Dick
Dick


-----Original Message-----
From: TR250Driver at aol.com
Sent: Sunday, February 22, 2009 11:40 AM
To: 6pack at autox.team.net, triumphs at autox.team.net
Subject: [6pack] Spark plug torque

Hey Guys,
How many of you torque your spark plugs to the specified 20 ft. lbs?   Before 
today I have to admit that I never have done that.  Since the age of  14 or 
so I have always used the grunt torque method for this task.  Age has  now 
weakened my grunt too no doubt.  
 
Today whilst installing a fresh set of Bosch  Platinum Plus plugs in  the TR6 
I noticed a diagram on the box that showed a wrench that indicated  21 ft 
lbs. torque. OK so I got my Snap On out and set it at 21.   Whoa, that's tight.  
Drop back five and punt dude before you screw it  up!  That's way tight for my 
grunt.  But dang right there in the  official Triumph TR6 Repair Operations 
Manual is a setting for 20 ft  lbs. for spark plug attachment. I guess that's 
right?
 
Do you suppose this is why all my Triumphs seem to have lean running  
decease?  No way, this can't be that important. I for sure have never  tightened 
plugs this tight. Also since I am always fooling around, I am  sure that I am 
crushing that compression washer several times that should only  be crushed once, 
correct? Old wives tale?
 
Cheers,
Darrell
 
 
 
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