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View Full Version : 200x wiseco issues.... Pics added


MoRaptor02
09-20-2006, 12:08 AM
I overhauled a buddys 200x. I went with a wiseco .20 over 11:1 piston. Well I got it back together started it up and went out to test ride it. Well I kept hearing what I thought was the valves. Something just wasnt sounding right so I took the motor back out and took the head and cylinder off. I was looking at the cylinder, which looked fine, then inspected the piston and noticed the around the intake it looks like the piston is hitting the head. Not like hammering it but deffinately hitting it. What are my options at this point all? Thanks in advance.
MTS
09-20-2006, 12:15 AM
wong year piston For that perticular 200x motor,,,,,or the B.E rod beaings is completly fubard'
maggiesboy
09-20-2006, 10:39 AM
I've heard of a few wiseco's being that way lately.... find a machine shop to relief cut the piston.
MoRaptor02
09-20-2006, 12:28 PM
No its the right piston and the rod bearings are in great shape. So i guess I need to go to the machine shop. Thanks guys.
edog
09-20-2006, 01:02 PM
Pics??????????????
thefox
09-20-2006, 01:05 PM
Is the piston pointing the right way? I think the arrow is suposed to point forward.
MoRaptor02
09-20-2006, 05:58 PM
Yeah it was in right. I will get pics this afternoon.
hoser
09-20-2006, 08:15 PM
Why are you correcting wisecos machining errors, how about calling them and letting them fix it then at least they know they have a problem and dont keep shipping their problems out to customers.
MoRaptor02
09-21-2006, 01:43 AM
http://i14.photobucket.com/albums/a324/MoRaptor03/WisecoPistonhighlighted.jpg

http://i14.photobucket.com/albums/a324/MoRaptor03/Headhighlighted.jpg

Heres the pics.
MTS
09-21-2006, 01:58 AM
Kinda looks like the head was Cut down quite a bit.......Might be the problem.
hoser
09-21-2006, 03:59 AM
Why would the head be cut down?

My concern now would be how much the rod bearings were hammered and how long they will last, how much were the head bolts stretched as it tried to lift the head off the cylinder you can see where the head gasket was leaking....
short4stuff
09-21-2006, 02:44 PM
same thing happened to me, I used an 86-87 piston in my 84 though, but it appeared as if it were going to work.... I have the whole engine torn down and have for like a year.. I am going to try that piston again.. eventually.
MTS
09-21-2006, 03:47 PM
Why would the head be cut down?

My concern now would be how much the rod bearings were hammered and how long they will last, how much were the head bolts stretched as it tried to lift the head off the cylinder you can see where the head gasket was leaking....
I dont know but it looks like it has been, theres virtually no lip between the sealing surface and the Gasket area,
jason 32
09-22-2006, 12:59 AM
mabe the head was milled down??
have the piston milled a little
-check the timing
use a dremel remove some material
-did it bend the valves?
MoRaptor02
09-22-2006, 02:20 AM
Nope valves didnt hit. I am going to talk to a machinest about it tomorow and see if he can clean up the piston for me.
SWIGIN
09-22-2006, 11:43 AM
i think it might be knocking from the high compretion....try some super or race gas in it