2500 settings

[Stevo302]

Hi guys, settings please.
Spark plug gaps.
Wheel nut torq,
Rocker shaft bolt torq,
Cylinder head torq,
Rocker gaps, hot ot cold.

Will keep a note for cure reference.
Many thanks for comments.
Regards.
S.

[Stevo302]

1971 2500 vixen. Twin SU. Stage 2 head. 6 branch manifold. Just for clarification.

[Mr Tiger]

Hi, I don't know if the tuning affects the following but the standard specs are:

Spark Plugs gap 0.025" (0.63mm) - Handbook & Haynes TR5 & 6 Manual

Wheel nut torque - 55-60 lbs ft (7.6-8.3 Kg m) - Haynes TR5 & 6 Manual. This may be for steel wheels. I don't know if alloys make any difference.

Rocker shaft bolt torque - can't find a figure, this may be the same as cylinder head ?

Cylinder head torque - 65.70 (presumably 65-70) lbs ft (9.0 - 9.68 Kg Fm) - Haynes TR5 & 6 Manual

Rocker gaps - 0.010" (0.25mm) cold - Handbook & Haynes TR5 & 6 Manual.

Hope this helps. Are you now keeping your 2500?

Regards,

Chris

[Mr Tiger]

Just found the rocker pedestal to cylinder head torque setting - 24-26 lb ft (3.318-3.595 Kg m) - ref Haynes TR5 & -6 manual.

Chris

[Stevo302]

Thank you.

[Stevo302]

Yes chris, trying to get things safe and correct before I head off out.

Anyone know anything about the Gunson gas tester? Set up to 2.0 then started but don't know what to aim for.

[Renaldo]

Steve, I set the timing and mixture for my 2500M using a vaccuum gauge.

Once it was running very sweetly, I then put the Gunson Gas Tester on it for curiousity. It was at about 2.2

I haven't felt the need to touch it since.

Ron

[Stevo302]

Thanks. Going to balance the carbs. Set the rocker gaps then get the Gunson back on.