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Spark Plug Torque specs

Jerin_L

Jerin_L

Passed Driver's Ed
Location
FL
What are they?

Recently went APR stage 1 and was going to throw in some Denso IKH24...

So conventional wisdom says hand tight then 1/4 - 1/2 turn... I've also seen people throw around 22 NM, and also 30 NM. Both of those numbers supposedly came "directly from the repair manual".

Or is all of the above irrelevant when not using OEM plugs, do we follow Denso's guide found at the following link?

http://www.globaldenso.com/en/products/aftermarket/plug/basic_knowledge/installation/index.html
 
D

Drunknfoo

Ready to race!
Location
Toronto
Curious, as I haven't needed to or bothered to change my plugs in years. Is indexing a thing of the past with plugs? or we just center and torque to spec?
 
R

russiankid

Drag Race Newbie
Location
PA
I don't think the torque is all that critical here. Just tight it by hand until the washer gets crushed all the way, then another 1/4 turn and call it a day.
 
A

alper

Ready to race!
Location
cloudy but not too cold
The Fed said:
And IIRC, replace them when the engine is cold.
Click to expand...

According to some reports, it helps having brought the engine up to temp (or thereabouts) as it apparently helps a lot with getting the rubber boots of the coil packs off. A few people that did the change on a stone cold engine reported damaged boots that needed replacing.
 
golfdave

golfdave

Autocross Champion
Location
Scotland (U.K.)
Car(s)
Mk7 Golf GT Estate
From the ERWIN official VW workshop manual for the R engine...

30Nm

9Nm for the earth wires...

use those special coil pack puller tools.. T10530..& do when hot as always...Christ I've been pulling conventional spark leads when hot ..you need to on any car with 16v or more as they are sooo buried..
 
B

B95zP

Ready to race!
Location
AZ
alper said:
According to some reports, it helps having brought the engine up to temp (or thereabouts) as it apparently helps a lot with getting the rubber boots of the coil packs off. A few people that did the change on a stone cold engine reported damaged boots that needed replacing.
Click to expand...

I've read the same.
 
Ramon64124

Ramon64124

Drag Racing Champion
Location
Kansas
alper said:
According to some reports, it helps having brought the engine up to temp (or thereabouts) as it apparently helps a lot with getting the rubber boots of the coil packs off. A few people that did the change on a stone cold engine reported damaged boots that needed replacing.
Click to expand...



Can confirm this. Done my plugs a few times, no issues.
 
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