Spark Plug Torque

[Max Hoepli]

Hi all,

Following table from
http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp, I
imagine for Bosch it would be the same 


 

 


  


Spark plug type

Thread Diameter

Cast Iron Cylinder Head (lb-ft.)

Aluminum Clyinder Head (lb-ft.)


Flat seat type (with gasket)

18 ø mm

25.3~32.5

25.3~32.5


"

14 ø mm

18.0~25.3

18.0~21.6


"

12 ø mm

10.8~18.0

10.8~14.5


"

10 ø mm

7.2~10.8

7.2~8.7


"

8 ø mm

--

5.8~7.2


Conical seat type (without gasket)

18 ø mm

14.5~21.6

14.5~21.6


Conical seat type (without gasket)

14 ø mm

10.8~18.0

7.2~14.5





What is the spark plug torque for a 1986 Type 44 Turbo Quattro?

 

For this model what is the best Bosch spark plug. Manual shows Bosch W 7 DTC

 

I go to this link and there is large chose:

 

http://parts.autopartsonlinecanada.com/parts/apocanada/quote.jsp?year=1986
<http://parts.autopartsonlinecanada.com/parts/apocanada/quote.jsp?year=1986&
product=F1000-55316&application=000268553&part=Spark%20Plug&category=F>
&product=F1000-55316&application=000268553&part=Spark%20Plug&category=F

 

Which one?

 

Max