Advise Needed

[Neil1982]

Hello all,

I recently purchessed a celica 2.0L sport Gen 6 L reg celica, when driving down the motorway i started to experience a misfire, i checked the spark plugs were working and all firing. i removed the intake manifold cover and found that two bolts that hold one of the butterfly valves on the intake pipe were missing.

Is this a common fault ?

Somtimes you would hear a really bad knocking but would come and go.

After stripping it down and removing the head i found that the cylinder head had signs of damage so im gonna renew the head for peice of mind.

A bloke i work with told me that if i get all the pistons lined up and pour petrol right to the top it would tell me wether my piston rings are leaking if one or two would drop faster than the other, Is this true or was he pulling my leg ?

Also if i was to renew the pistons rings how hard would this be ?