Don't know enough about the differences in coilpacks, but its a distinct possibility

Alternatively, when the 5th piston failed, it could have damaged the rod - did you rebuild with the original rods?

yeah i rebuilt with the origonal rod that i got balanced locally... and a very small bend would never have been noticed!

with this new engine anyways i will fit a new coilpack for the value of it..

Iain

was the piston still in there in one bit? Take it out and see if there's clearance between the rings and the lands should be around 1-1.5 thou - measure with a feeler gauge. Check the head gasket is there a crimped look to the fire rings likes its been pinched with a set of pliers? These are indicative signs of detonation. If dont have those bits get them.

Rich

Thats why i got forged pistons and rods

No doubt my crank will now fail, now I've said that

ok after 3mnths i still havent got my car back, ive had some serious problems with mechanic motivation, im sure some of you guys know what i mean or have had this problem before, main problem is hes such a nice guy and he has so much on a hate slave driving him...

Finally my old engine is out and as promised ive added a few pics of the mess the rod made to the Block/Sump!

http://i18.photobucket.com/albums/b101/leinster/SP_A0162.jpg

http://i18.photobucket.com/albums/b101/leinster/SP_A0163.jpg

Notice you can see rite through from one side to the other, as well and there being a 2" diameter hole in the bottom of the sump too

the Rod just seems to have snapped in half and and there is nothing left on the big-end than a small stump

I will add some more pics as i get it stripped down more and someone can try and explain to me what seems to have happened!

sorry to drag this topic up again!

Iain

Cripes Iain!

Yeah mate now u understand why i was so gutted only having done 2k miles on the engine after a full rebuild