headgasket job next

Side valve, 803, 948, 1098., 1275 and Vizard mods

headgasket job next

Postby cococola » Tue May 21, 2013 7:38 pm

Well after my overheating day I do now have oil in my new coolant radiator so guess what I will be attempting on the bank holidays :cry:
The job doesnt look too bad to do and I wonder if there are any tricks to the job or anything to watch out for?
many thanks
Alan
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Postby bmcecosse » Tue May 21, 2013 8:38 pm

Just follow the Manual.  Got a torque wrench?  Oil in water is not necessarily a head gasket problem.....what happened to the engine? Is it running normally?
 









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Postby cococola » Wed May 22, 2013 9:59 pm

the engine is running nicely with no overheating,I replaced the radiator due to coolant leak a couple of weeks aago and replaced coolant with fresh and when I checked the levels on the weekend there was oily black coolant in the radiator.
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Postby chesney » Wed May 22, 2013 10:18 pm

Was it a used radiator? Could have had anything in it!
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Postby cococola » Thu May 23, 2013 6:45 am

I flushed the new rad out before I fitted it :cry:
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Postby Custard » Thu May 23, 2013 7:16 am

Had you flushed the block too?

For the sake of 20 mins with a hose pipe I would be tempted to flush both again, then run and see before removing the head.

Always try the easy things first.

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Postby bmcecosse » Thu May 23, 2013 7:46 am

Leave the head alone.......as others have advised - wash it all out.
 









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Postby cococola » Sat May 25, 2013 5:40 pm

I did flush out the engine aand radiator and still had the same problem so I have now replaced the headgasket.
After completing the job today I start up and have the following problems:
1.Turned over as though starter was sstuck and when it did start I now have plumes of smoke from the exhaust.
2.When I raise the revs I get a knock type noise from the rocker cover

Ticking over the car is sweet except for the smoke
I took my time and rechecked everything as I was assembling it :cry:
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Postby Phil Her Up » Sat May 25, 2013 6:52 pm

Sorry to hear things haven't gone well - what colour would you say the smoke is? (blue, white..?)
Are you confident that the rocker shaft went back on ok (and the push rods located ok) and the tappets are set correctly?
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Postby bmcecosse » Sat May 25, 2013 7:44 pm

You were advised NOT to touch the head gasket.....for fear of exactly this sort of result.   Did you find anything wrong with the old gasket? Did you grind in all the valves while the head was off?  Trust you did NOT clean the carbon off the tops of the pistons....  Did you apply grease film to both sides of the new copper faced gasket?  Did you torque it all to 44 ftlbf ?  And have you retorqued it after the first heat cycle?  And set the valve gaps to 12 thou inlets and 15 thou exhausts ?
 









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Postby cococola » Sat May 25, 2013 8:22 pm

As I explained I have done everything suggested before replacing the headgasket.This was my next option and I feel bad enough about it already now.
M y next step I really dont know?
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Postby Custard » Sat May 25, 2013 9:13 pm

Were there any raised parts around the waterways?

You can either remove it all and recheck, or just slacken off the tappets torque the head down again and set up the tappets and see if that works.

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Postby cococola » Sat May 25, 2013 9:28 pm

Hi Sean
How do you mean raised parts and would I loosen the rocker shafts and retorque the head then the rocker shafts?
cheers
Alan
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Postby Custard » Sat May 25, 2013 9:45 pm

Sometimes the holes in the gasket do not accurately match those in the block and head.

This means that deposits can build up and there ends up some unevenness around the waterways.

If these are left and the new gasket does not match exactly it may not seat correctly, so even if not having them skimmed I give them a quick rub with wet and dry on a block of a wood.

Not enough to wear away any metal, but enough to clean it up and make it smooth.

If you are not removing the head again there is no need to remove the rocker shaft, just slacken all the tappets off.

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Postby cococola » Sat May 25, 2013 9:52 pm

One thing that I didnt do was set any tappets as I thought it was just refitting the shafts when assembling
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