Saturday 24 September 2011

How do i change head gasket peugeot 306?

I have answered this before. It is a lot of writing with about 20 steps. I recommend buying the Haynes Repair manual...but see my previous step-by-step answer here:



wait for the link, please....

Sorry, I looked at 45 pages of my %26quot;best answers%26quot; and could not find it.

You need different steps for a carburetted engine, a fuel injected, but they are all similar for most steps.



Basically, here are the steps..BASICALLY!

1. Disconnect battery so the car will never start accidently.

2. Drain coolant, save it if you are frugal.

3. Disconnect 10 things that are in your way of removing the valve cover. air cleaner, spark plug wires/ coil pack, water hoses, distributor wires, fuel lines (carburettor can stay in place)

3b. Disconnect the exhaust pipe at the manifold. This may require loosening the pipe below the engine too. LATER, remove the manifold when the head is out of the car (before planing the head).

4. Now you have to remove the camshaft that is on top of the head....It is critcal that the engine's pistons do not move AT ALL. proceed to step 5 cautiously.

5. remove the plasic covers over the timing belt.

6. PUT A 10mm bolt in the hole on the cam gear and into the engine head. Put a 6mm bolt into the flywheel hole to block the flywheel from moving. see photo of similar hole on a 205 engine:

http://i255.photobucket.com/albums/hh155鈥?/a>

bolt should go in one full inch!

7. Now your engine will not accidentally change positions.

Loosen the timing belt tensioner retaining nut. Pivot the belt tensioner with a square bar tool, to loosen the belt, then tighten the retaining nut.

8. Remove the timing belt and store it safely and cleanly somewhere.

9. Slacken and remove the oil dipstick tube.

10. Slacken the 10 bolts progressively by 1/2 turn at a time. THIS MUST BE DONE in a circular sequence, here's wher the book is handy..imagine the 10 bolts are numbered like this:

10....6......2....3....7...back row of bolts.

9.......5.....1....4....8...front row of bolts.

Slacken the bolts in this order, 10, 9,8,7,6,5,4,3,2,1.

Remove the ten bolts and number them with tape and ink pen. Replace them in the exact same position later.

10. Lift off the camshaft. Note the two positioning pins. You can now remove the 10mm bolt, but need it for reinstallation.

11. gently rock the head forward and backward, gently!! untiul it comes loose from the block. DO NOT disturb the cylinder liners by affecting their heights, or you will create other serious problems. see photo of cylinder liners (Pug 205) these liners must be checked for proper height BEFORE installing the Head again.

http://i255.photobucket.com/albums/hh155鈥?/a>



12. Lift off the head. Take it to a machine shop for planing, cleaning, spring inspection, vavle guide replacement. You cannot replace a broken spring later on.

13. Remove head gasket. Traditionally it is broken in the front, left corner. Clean all traces of the old gasket from the block but DON%26quot;T MAKE scratches in the aluminium surface!



14. Check the height of the 4 piston sleeves. They should be a certain height above the block surface. Check with Peugeot for your TU ? engine.

15 . Fit the new gasket, dry. No silicones.

16. Place the new, reconditioned head on straight downwards.

17. Installation is the reverse of removal, BUT...tighten the head bolts in the sequence 1,2,3......10. To a torque of 20? Nm = 15 ft.lbs...then second passing, a further 240 degrees. Check the exact specs for your engine.

18. Put the 10mm bolt back into the camshaft gear, now start the timing belt replacement. A new belt is advised, new water pump too if you can afford it.



19. Get the right tension on your timing belt. 90 degree twist by thumb and forefinger is OK.

20. Put all those darn wires and hoses back on. Oil dipstick too. fill with coolant and check oil. Valve cover back on of course.

REMOVE THE 6mm bolt from the flywheel.

21. Start her up, release air from cooling system. Inspect for water leaks, noises..



22. Drive to my house for a beer. I hope after all that explanation AND A FREE BEER, that you will choose my answer. Thanks.How do i change head gasket peugeot 306?Thank you....you didn't even vote for your own question.

And...since when is %26quot;take it to a garage%26quot; a real answer? Either you know how to answer, or you don't.

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How do i change head gasket peugeot 306?
Take it to a garage and get it done properly. Its a big job to be done by your self.

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