roundeth

New Member
Hi all- recently bort a 1996 model year P38 with 4.6 v8, - some numpty before us ran the engine with no oil in it and has done major dammage- it will turn over, spark, compression and fuel on each cylinder- but wont run!!!- due to a very loud bottom eng clunk wen u try and turn it over we have decided to just replace the engine as a hole thing rather than try to strip it.- we have soursed a 4.6 v8 from a 2000 model year vehicle- will it work/ fit/ be happy and be a straight swap for the existing engine???

cheers

sam
 
Yes it can work,there are plenty of bits to swop,most are obvious but dont forget to change the cam sprocket - otherwise it will never run right.(most of the bits are very obvious)
 
Yes it can work,there are plenty of bits to swop,most are obvious but dont forget to change the cam sprocket - otherwise it will never run right.(most of the bits are very obvious)

Why do you need to change the cam sprocket on a 2000 MY engine when puting it in in place of a 1996 MY engine?

thanks

sam
 
Because the legs of the sprocket are different,Gems has 3 wide legs and one narrow,Motronic has 2 narrow and 2 flag shaped legs - think thats right.(much wine :D ) It wont run right with the wrong one.
 
Because the legs of the sprocket are different,Gems has 3 wide legs and one narrow,Motronic has 2 narrow and 2 flag shaped legs - think thats right.(much wine :D ) It wont run right with the wrong one.

Thanks, but if the engine i swap it with comes with it's own ecu then this should not ne a problem should it as it will not affect anything else????? :confused:

cheers
sam
 
Thanks, but if the engine i swap it with comes with it's own ecu then this should not ne a problem should it as it will not affect anything else????? :confused:

cheers
sam
The 2000 engine runs a Bosch Motronic ECU - totally different to your Gems one,the cam sensor is the same,its just the sprocket thats different.Dont even think of using the Bosch ECU,for a start it will not communicate with the BECM as its locked to a Gems system when the BECM is programmed to the car.You will have to change the sump anyway,so doing a camchain/sprockets is not much more and will be a good freshen up for the engine anyway.
 

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