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Author Topic: BOLTS FOR CYLINDER HEAD 2.2  (Read 2605 times)
Matra_Hans
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« on: February 10, 2014, 03:02:44 pm »

Hi,
Does anyone know if it is necessary to use new bolts for the cylinder head on a Murena 2.2, after the cylinder head has been removed in order to change the gasket? I am asking because Simon is asking for 18.33 Euro per bolt.
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northmurena
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« Reply #1 on: February 10, 2014, 08:49:25 pm »

Hej Hans,
you can use the bolts again. No need for new ones.
Kai
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roy4matra
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« Reply #2 on: February 12, 2014, 05:14:30 pm »

Hi,
Does anyone know if it is necessary to use new bolts for the cylinder head on a Murena 2.2, after the cylinder head has been removed in order to change the gasket? I am asking because Simon is asking for 18.33 Euro per bolt.


No you should not need to use new bolts Hans.

With modern engines, you tighten the bolts to stretch point (using the torque angle), but you do not need to re-torque them after a small mileage as the stretched bolts keep the torque on the head as they pull down.  When you replace a head gasket with these engines, you have to measure the bolts and if they have stretched beyond a certain length you must replace them.

With an older engine like ours, you do not stretch the head bolts.  BUT you must re-torque them after about 1,000 to 1,200 km to bring them back to the correct torque after the gasket has settled.  DO NOT forget to do this re-torque otherwise the head gasket will soon blow.  Since you do not stretch the bolts they rarely need replacing.

Roy
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alfafred
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Murena 2,2 S


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« Reply #3 on: February 12, 2014, 09:35:02 pm »

When you replace the head gasket on a 2.2 do you remove the complete engine and gear from the car, or is it a job you do with the engine inside the car?
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Matra_Hans
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« Reply #4 on: February 13, 2014, 08:59:29 am »

It can be done with the engine in the car, but you will need some flexible arms, in order to reach all the bolts.

Hans
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krede
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« Reply #5 on: February 15, 2014, 09:55:42 am »

I'll give you a hand with that Hans... My arms are made of rubber anyway Smiley
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alfafred
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Murena 2,2 S


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« Reply #6 on: February 15, 2014, 12:57:48 pm »

 Grin Grin Grin

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roy4matra
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« Reply #7 on: February 15, 2014, 08:06:16 pm »

When you replace the head gasket on a 2.2 do you remove the complete engine and gear from the car, or is it a job you do with the engine inside the car?

You do not need to remove the engine to do the cylinder head gasket, but there are things that make the job easier.  The ease also depends on whether you have a single down-draught carb. or the twin side-draught carbs.

There are things you must not forget, and if you have the workshop manual for the 2.2 engine (came with the Tagora NOT the Murena manual) it has some mistakes so do not follow it implicitly.

First thing to remember is to back off and lock out the tensioner before you start stripping (and obviously release and set it at the end).  If you skim the head you must have the top timing case bolted on at the time as that must be skimmed too.  When you torque the head down, the timing case must already be on and torqued up so that it is pulled down on the gasket at the same time.  The timing case is dowelled to the head, so if you torque the head up before fitting the timing case, you won't get it on!

To give yourself some room to get at the timing case and camshaft gear bolts, support the gearbox and remove the gearbox mounting cross bolt.  Then you can lower the gearbox end a little and this will move the engine timing case end away from the inner wing and give you extra room.

These are quite easy engines to work on, and any one who thinks otherwise has never worked on modern cars which are so tightly packed in there is little room to do anything, particularly changing timing belts, and water pumps! :-)

Roy
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alfafred
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Murena 2,2 S


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« Reply #8 on: February 15, 2014, 09:25:44 pm »

Thanks Roy! Important to know! My car have only 60500 km on the road, but also 30 years, the head gasket are ok, but old car anything can happend..

 Smiley
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