Are some of you experienced in replacing main bearings in a 2.2 engine ?
I have bought a set, from simon. Is at standard set (1047a) But mounting against the clutch (number 1) does not fit. All 5 bearings is the same size. The bearing fits good, at mounting brackets number 2, 3, 4 and 5
The bearing fits good at the crankshaft, so it is the bearing bowl that is too small. If I measure the old bearing, it is 1.6 mm. thickness. The new one is measure 1,9 mm. in thickness.
Is some of you have tried the same ?
regards
René
Hello René, I have built quite a number of these 2.2 engines now as well as many others during my working life in the trade, so I think I can answer this if I understand you fully. So first I need to clarify what you are saying and understand exactly what your problem is.
You say you bought a standard set of main bearing shells from Simon Auto, and 01047A is certainly the right part number for a set of standard main bearing shells. That set should contain three plain bearing shells with an oil hole, three plain bearing shells without any oil hole, (these are for positions 1, 3 and 5) then four bearing shells with a groove and an oil hole (for positions 2 & 4). Five half shells with oil holes go into the block and the three plain shells without oil holes go into the bearing caps 1, 3 & 5. All ten shells should be the same thickness.
So are you saying that one half shell or maybe two halves are 1.9mm thick but the rest - all other half shells are only 1.6mm thick? If that is the case then the set of shells is faulty. You say that 'all 5 bearings are the same size' - are you talking here of the crankshaft bearing pin size? The bearing shells must all be the same thickness. Until I can check some of my new shells tomorrow, I can't say for certain what thickness they should be, but around 2mm thick sounds right and 1.6 sounds a bit thin, but I may be wrong and will report back tomorrow. Also I use English bearing shells not those from Simon Auto, but that should not matter as they should be the same.
However, there is another anomaly in what you say that needs to be cleared first. You say the shells do not fit at position number 1 (which is next to the flywheel). How does it not fit exactly? All bearing shells whether standard or oversize for a reground crank should fit in the block and bearing cap, but if it was an incorrect shell, the crankshaft might not fit in as a standard crankshaft main bearing pin would be too big to fit in an oversize shell. So are you really saying the bearing shell does actually fit but the crankshaft will then not fit in the bearings? Or do the shells truly not fit in the block and bearing cap?
Have you checked the back of all bearing shell halves? They should all be marked with their size, either 'Std' for a standard shell, or +0.2, +0.5 etc. if they were shells for a re-ground crankshaft. Have they ALL got the 'Std' engraved on them?
A photo of all the bearing shells could be useful here, but only if it is clear enough to read the engraving on the back of the shells. Line them all up together (five above and five below) and one photo should be enough to see the back of them all. Also a photo of how it does not fit.
Once I am clear exactly what your problem is I should be able to help with the solution.
Roy