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[grifter]

Sorry to hijack thread a bit but what is the torx size of the head bolts. I do admit to loosing my way with the sizing's of these new fangled fittings! It says 10 on mine but 10 what? I need a smaller length one to get into the back left hand bolt to fully torque up.

[cam.in.head]

on all the early engines they were not torx bolts.they are 12 point spline.size 12 for headbolts and 8 for cam sprocket bolts.6mm allen for front of head.if yours are torx type then 10 will be the size if thats what it says though a t10 torx does look a lot smaller than a no12 spline. best take a bolt to tool shop with you to be sure

[grifter]

on all the early engines they were not torx bolts.they are 12 point spline.size 12 for headbolts and 8 for cam sprocket bolts.6mm allen for front of head.if yours are torx type then 10 will be the size if thats what it says though a t10 torx does look a lot smaller than a no12 spline. best take a bolt to tool shop with you to be sure

T10 looks tiny on ebay, will take bolt to halfords see if I can get a bit.

[Doctor Gollum]

on all the early engines they were not torx bolts.they are 12 point spline.size 12 for headbolts and 8 for cam sprocket bolts.6mm allen for front of head.if yours are torx type then 10 will be the size if thats what it says though a t10 torx does look a lot smaller than a no12 spline. best take a bolt to tool shop with you to be sure

T10 looks tiny on ebay, will take bolt to halfords see if I can get a bit.

Well zoom in then

[grifter]

on all the early engines they were not torx bolts.they are 12 point spline.size 12 for headbolts and 8 for cam sprocket bolts.6mm allen for front of head.if yours are torx type then 10 will be the size if thats what it says though a t10 torx does look a lot smaller than a no12 spline. best take a bolt to tool shop with you to be sure

T10 looks tiny on ebay, will take bolt to halfords see if I can get a bit.

Well zoom in then

Looks proportionally bigger, but still "small" 

[Doctor Gollum]

Suspect thast you've misread T40

[Steve Brookman]

As Chris said,
Splined size 12 for the head bolts and 8 for the cam.

Thanks Mark-I'll give it a tap when putting it back on. Very busy for the next week or so , so hope to have it up and running the week after next and then off for an MOT. MOT history looks very good so hopeful nothing major here.

I'm going to use the three stage torque method-It's easy to check if you've missed a bolt-I couldn't check using the angle method and "may" not have tightened them all equally.
 Cleaned up the head and no obvious fault apart from lots of sealant.

Steve

[grifter]

As Chris said,
Splined size 12 for the head bolts and 8 for the cam.

Thanks Mark-I'll give it a tap when putting it back on. Very busy for the next week or so , so hope to have it up and running the week after next and then off for an MOT. MOT history looks very good so hopeful nothing major here.

I'm going to use the three stage torque method-It's easy to check if you've missed a bolt-I couldn't check using the angle method and "may" not have tightened them all equally.
 Cleaned up the head and no obvious fault apart from lots of sealant.

Steve

The 3 stage torque method?

[cam.in.head]

Early cars .hand tight. Then torque to 25.    Then 50.     Then 74lbs. Later models reccommended angle tightening but then later models also have stretch bolts whereas early ones(12splined) can be re-used.

[Steve Brookman]

Home from a week away-will put head on tomorrow.

Steve

[Steve Brookman]

Latest on the Senator.
 
Back from hols so thoroughly cleaned the surfaces. New head gasket and "O" ring.  Me and my brother used my newly purchased block and tackle to gently lower the head down-all torqued up using the 3 stage process- 25, 50, 74 lb foot-even had my brother checking the order and settings. All put back together-thought I'd fill it with water. Drips started to form along the gasket joint on both sides of the head.
 
"Oh bother!" I thought
 
Had a think and the only thing that came into my mind was a faulty Torque Wrench-It's nearly 30 years old-but my brother paid loads for it.
 
I went to Screwfix and bought a new one-all the bolts needed at least another quarter turn before the wrench clicked. Filled with water again-but so far no drips.
 
Hoping this is the problem and may have caused the last one to go tits up.
 
Steve

[Nick W]

If he paid loads for a torque-wrench 30 years ago, it may only need calibrating to get it working properly. Actually, if it's that old it definitely needs calibrating.


I must get my good one done; it was acquired at an advantageous rate so is worth spending a few quid on.

[henryd]

If he paid loads for a torque-wrench 30 years ago, it may only need calibrating to get it working properly. Actually, if it's that old it definitely needs calibrating.


I must get my good one done; it was acquired at an advantageous rate so is worth spending a few quid on.

I've got a snap on one that's 30 years old and still accurate against a new digital version although i do love the way the New one does angle settings

[Steve Brookman]

Hello all,
Got it running this morning-dropped the old oil before starting-adjusted the rockers and then let it run for a while to bleed the cooling system. Changed oil and filter again and put on rocker gasket and rocker covers. Ran it for ages, drove in and out of the car port and all seems ok. Have a slight weep from rocker gasket-it popped out a little-but will do this when engine has cooled down.
So may be ok!

Thanks again for your help.

Steve

[cam.in.head]

Yeah the rocker gaskets can be a little fiddly to keep in place.and the fixing hole sizes tend to be a bit tight to go on i usually 'glue' them onto the cam cover and leave it sat flat on the bench to set a little before I fit it. Glad to hear it might be sorted now after all the hassle.unless you had caught the gasket the first time around it sounds like you may have had it under tightened then.cheers. Chris"..