TB42 Tappet Adjustment

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Originally Posted by taslucas

I have this from a Haynes manual:

TB42 valve clearance:
COLD:
Intake 0.20(mm), 0.008(inch).
Exhaust 0.20(mm), 0.008(inch).

HOT:
Intake 0.38(mm), 0.015(inch).
Exhaust 0.38(mm), 0.015(inch).

Note: "cold" is 20 degrees C.

I had a mate help me adjust mine last year. About a 40 minute drive to his place so we set it for the hot adjustment. It made a noticeable difference with power and economy.

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thanks for that taslucas, the car isnt really in one piece so a warm start isn't all hat practical at the moment

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Originally Posted by MikeBossyBos

thanks for that taslucas, the car isnt really in one piece so a warm start isn't all hat practical at the moment

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No worries mate. Hope you get it sorted and back on the road:-)

I'll be doing mine this weekend. The ol girl has started to get a bit smokey under load (bit like puffin billy). I spoke to one of our maintenance fitters today who as it turns out is a td42 guru. Said before anything else check air filters, tappets, injectors then fuel pump last.

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Originally Posted by growler2058

I'll be doing mine this weekend. The ol girl has started to get a bit smokey under load (bit like puffin billy). I spoke to one of our maintenance fitters today who as it turns out is a td42 guru. Said before anything else check air filters, tappets, injectors then fuel pump last.

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This is a t B 42 thread you mong!

Read past ya nose nob head also details td42 the only decent motor

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Originally Posted by growler2058

Read past ya nose nob head also details td42 the only decent motor for people that think slow and drive slow

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Yeah you got me there!

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Originally Posted by taslucas

Yeah you got me there!

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I know ! hahahahahaa

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Originally Posted by growler2058

I know ! hahahahahaa

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Read past your nose and look at my quote lol

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Originally Posted by taslucas

Read past your nose and look at my quote lol growlers got the best engine of all patrols....the TD42

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HAHAHHAHAHAHAHHAHAhahahahahhaha funny knut

Ive struggled with this cause no where in the manual did it say about the distributor bit an the bit about the lpg awesome mabey now I'll get that fookin tapping noise to go away ty ty ty well here goes 3 time lucky I hope :what:

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Originally Posted by fukitol72

tapping noise to go away

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If they're like mine adjusting them probably wont be enough. I thought they were fine until I compared them with a freshly ground one. They have a fairly definite point (like a cam) where they push on the valves, but they're meant to be evenly rounded.

Hi everyone,
Is this the same settings for the 97 2.8L turbo diesel?

Whats involved in removing the rocker cover with the vacuum pump i couldn't find the workshop manual?

I think its a lifer noise I,m hearing, but I,m also thinking it maybe a injector they can sound the same, she has only done 235,000 km i will check it out tomorrow to see if it the lifter or injector with the old screwdriver.

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Originally Posted by patch697

This is a widely ask question by many DIYers so I've set it out in point form so whom ever needs it may copy & print it out


TB42 Tappet adjustment.

Adjusting Intake and Exhaust Valve Clearance
Adjustment should be made while engine is warm but not running

1. Set No. 1 cylinder at top dead centre on its compression stroke,(with timing marks aligned remove distributor cap the rotor button should be pointing at number 1 ignition lead position in reference to the distributor cap if its not rotate engine 360 degrease) and adjust valve clearances 1,2,3,6,7,10

2. Set No. 6 cylinder at top dead centre on its compression stroke, (with timing marks aligned remove distributor cap the rotor button should be pointing at number 6 ignition lead position in reference to the distributor cap if its not rotate engine 360 degrease) and adjust valve clearances 4,5,8,9,11,12

Valve clearance
Intake 1,3,5,7,9,11 - 0.38mm (0.015 in)
Exhaust 2,4,6,8,10,12 - 0.38mm (0.015 in)

Adjusting screw lock nuts - 16 - 22 Nm (1.6 - 2.2 kg/m, 12 - 16 ft/lb)

If you are running duel fuel it is a good idea to set your tappets 1 to 2 thou bigger in gap as LPG has a tendency to close up the gap.

Although this is a widely used practice its not an absolute necessity.

Cheers
Paul

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i have a 03 nissan patrol 4.8 is this for that to

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Originally Posted by thefuzzywuzzys

i have a 03 nissan patrol 4.8 is this for that to

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Hello mate and welcome to the forum, might be better for you to post an intro before
asking any questions ,,polite and all,, Its just something the Forum asks of us all.
No harm done but you'll find you'll get a better response as well,,,,,,lol

I remember doing the Holden red motors, engine running, back off the rocker till it rattled, then close up till silent. Do all 12 and shut it down. The tighten them all 3/4 of a turn. Tappet cover back on and start up, once the lifters equalised, that was it.