cam help plzzz

aaronnchrys · 07-29-2007, 07:42 AM

i just got my 7mge motor out of the machine shop. A month ago i had oil pump failure blew the head gasket lost oil thus spinning a rod bearing got the block disassembled crank turned new freezeplugs bearings pistons n all that came out sweat. i got a valve job on the head n she was warped so he took .6 off he said he didnt want to put cams in cuz he was scared of them bending a valve in delivery bottom line is i looked at the cams when it came in n they are scratched pretty bad along with the head where the cam sits figure i cant put them back in someone told me the head cant be machined fixed or anything they said the cams cant be either. they say i need a new head n thats my only option now id hate to throw a head i just spent a grand on down the drain is there anyhting i can do please help thanks yall once i get this situated ill post all other current mods just kinda stressing right now

Bill UK · 07-29-2007, 12:39 PM

I asked the same question on the UK forum some years ago, this is the response I had “Cams and journals on many 7m engines are scratched and this "normal" I've also found this on the Supramaia forum. http://www.supramania.com/forums/showthread.php?t=16390&highlight=camshaft
and
http://www.supramania.com/forums/showthread.php?t=19332&page=2&highlight=journal
My radial scratches where about 5 to 10 thou deep on the cams and bearings. I reused mine without any problems. A few years later I stripped the engine down to do a bigend repair and re inspected the cams again but found no increase in wear or any increase in scratches.Two questions: Do you have any photo's of the camshaft scratches and did you have the crankshaft checked for cracks before re grind. ?

07-29-2007, 07:42 AM	#1
aaronnchrys Stock Join Date: Jan 2007 Location: nc Posts: 4	cam help plzzz i just got my 7mge motor out of the machine shop. A month ago i had oil pump failure blew the head gasket lost oil thus spinning a rod bearing got the block disassembled crank turned new freezeplugs bearings pistons n all that came out sweat. i got a valve job on the head n she was warped so he took .6 off he said he didnt want to put cams in cuz he was scared of them bending a valve in delivery bottom line is i looked at the cams when it came in n they are scratched pretty bad along with the head where the cam sits figure i cant put them back in someone told me the head cant be machined fixed or anything they said the cams cant be either. they say i need a new head n thats my only option now id hate to throw a head i just spent a grand on down the drain is there anyhting i can do please help thanks yall once i get this situated ill post all other current mods just kinda stressing right now

07-29-2007, 12:39 PM	#2
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	I asked the same question on the UK forum some years ago, this is the response I had “Cams and journals on many 7m engines are scratched and this "normal" I've also found this on the Supramaia forum. http://www.supramania.com/forums/showthread.php?t=16390&highlight=camshaft and http://www.supramania.com/forums/showthread.php?t=19332&page=2&highlight=journal My radial scratches where about 5 to 10 thou deep on the cams and bearings. I reused mine without any problems. A few years later I stripped the engine down to do a bigend repair and re inspected the cams again but found no increase in wear or any increase in scratches.Two questions: Do you have any photo's of the camshaft scratches and did you have the crankshaft checked for cracks before re grind. ?