Hello, thanks for Quick reply on this question!
The serial number on the block is 7_1103541 and then 7T2 so it seems to be a 2-litre engine !? Is there a differance on the valve size , camshaft etc between this engines?
That is a 1977 2-litre engine Mattias. The bore should be the same as the 2.2-litre but the stroke is shorter and the pistons will have domed heads.
The original 2,2 engine in my Murena has a broken cylinder head, damaged cam shaft and some small pores in one of the cylinders. So the plan now is to use this engine with the crank shaft, rods and pistons from the original engine. I will deassembly this engine to see if everything is ok.
What do you think, will it work with this combo?
Best regards
Mattias
You need to use the original 2.2 crankshaft and flywheel, con-rods, and flat topped pistons, providing they are really good, and that should give you a 2.2-litre engine. However, even if they look good, you should really get everything checked thoroughly first including the 2-litre block which should be checked for condition of bores and crankshaft including alignment. I suspect you will need to have the crank re-ground as it is being fitted in a different block, and the bores at least cleaned if not re-bored, and the original pistons will need to be replaced because if the bores and camshaft were damaged/broken it suggests the pistons hit the valves and the shock loading did the damage to the bores and camshaft. You also need to check the crankshaft end float in the different block and those surfaces in case they need to be machined. The 2-litre head will not have the mounting points for the engine steady bar, so you will have to have the head modified to take that. Also the block will need some other modifications (like cutting off a casting lug and drilling out threads) otherwise you cannot fit it into the Murena, because it was designed for a longitudinal installation in the Chrysler 2-litre with a Talbot gearbox, and you will be fitting it to a Citroen CX transaxle and mounting it transversely in the Murena.
If the 2-litre bores are good but only very slightly worn, you might be able to take the bore to the repair size which is just 0.10mm oversize and use the repair size pistons, IF Simon Auto has any in stock, otherwise you will need to re-bore to the first oversize which is 0.40mm and use 0.40mm oversize pistons.
If you do modify it, please stamp it X5N2 near the engine number, so it can be seen to have been modified.
Roy