need some help motor wont start

[kickadog55]

just to start from the begining i was one my way back from kennewick a few months back. my car started ticking loudly overheating and shut down towed it home found out it jumped time.

i baught a donor motor for some things took the old motor out replaces the timing gear replaced the intake manifold and the distributor housing.

now it wont start still so i did a compression test results: 1-90 2-90 3-60 4-90

anyone have any ideas what it could be? also its a SOHC

[mychalous]

compression in cylinder 3 is waaaaay too low, find out where it's leaking from and get it fixed. check the valves and your piston rings and try again

[smbonn2005]

Also check your head gasket as it may be cracked at that cylinder
Modified by smbonn2005 at 7:14 PM 11/4/2008