How hard is it to replace cambelt? - Alfa Romeo Forum
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(Post Link) post #1 of 6 Old 17-11-14 Thread Starter
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How hard is it to replace cambelt?

Hello, the time has come to replace the cambelt in my 156. Unfortunately the cost of getting it replaced by a professional is far too high where I live. So the question is just how hard it is to replace it by myself?

I've looked around online and found some instructions, though its a bit hard to truely risee the difficulty without having the engine in front of me. I've found the cam locks, and the DTI guage. So from what I've seen, I've understood that the cam locks secure the position of the valves by locking those of sylinder 2 and 3, while the guage measures the position of the piston of sylinder 1?

And as long as the locks are at the correct places, and the piston is in its top position, it's just a matter of putting the belt back on and tighten everything to their desired torque?

Nothing vital left out? Nothing else that needs to be locked or in their correct position?

Also worth mentioning that this will be done while changing the engine from a rusted wreck, to a car with engine failure. So it will all be done with the engine outside, which I'm sure makes some of the work easier...
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I personally think the belt change is relatively straight forward. You seem to have it covered, things to consider or remember, change the water pump and jockey wheels at the same time, and of course the balance shaft belt. I suggest that you have all the appropriate tools etc. it will save a lot of struggling. Good luck.
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It's relatively easy. If you've found a good guide and have the camlocks it should be straightforward. You losen the cam pulleys to the camshaft to set timing exactly. Don't forget the balance belt and it's tensioner (assuming the replacement engine is also a 2.0 litre).
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(Post Link) post #4 of 6 Old 18-11-14 Thread Starter
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Which other special tools are required or recommended having, besides the locks, and DTI? I also found a TDC article next to the DTI ( Is this some sort of necessary extention?
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That is needed as the spark plug hole is down a deep well. The tensioners are set to tight, turn the engine over through two complete revolutions and then set the tensioners using the markers. Do not forget to retighten the inlet cam wheel fasteners.

When you take out the Allen bolts holding the belt cover on have some way of knowing where they are taken from as they are not the same, some only slightly different from each other. I made a corriflute outline of the cover with the holes in the same places and the bolts were placed in that when removed.
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Sometimes these jobs can seem daunting , But as other have said its is straight forward,

1st give your self time , dony try and rush it all in a time frame where the pressure of needing it for work etc will cause panic.
2nd get all the tools you need before hand

then just take your time and measure twice cut once and your be laughing and learning.

If you start and get stuck , just stop and ask the question someone will help out with any questions.

and when done its very self satisfying
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cambelt , hard , replace

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