22R Cam timing

[ill-minded]

Car - '85 RA65 Celica

Motor/part in question - 22R Camshaft

Problem - Not sure if the timing chain jumped a tooth on the crank gear while I was installing the head

Occurs/started when - I decided to rebuild the motor myself

Okay, so some may have read through my build thread on the Celica and know I've rebuilt the 22R. It's a pretty basic build with a bunch of LC Engineering bits and bobs, such as the and an adjustable timing gear. The head has been decked 0.020" recently and may have been previously skimmed, so there's a little bit of meat taken out, but nothing drastic. The adjustable gear is still zeroed for now, but the cam will naturally be retarded slightly with the skimmed head/block.


I've got the engine installed and running smoothly after sorting a couple of pesky coolant leaks and took it for a drive up the street and noticed it feels pretty gutless above about 3,000rpm, which has led me back to speculating whether I got the cam timing right or if it happened to skip a tooth on the crank gear while I was installing the head. I also noticed that the exhaust coming out of the tailpipe is flowing at quite a high rate to what I'm used to. I'm not too sure if that's just because it's the factory exhaust pipe (1 3/4") with this uprated camshaft or if this is related to the possibility of cam timing being out. I've gone over the ignition timing properly already (ECU in diagnostic and vacuum lines to vacuum advance disconnected then base timing set to 5 degrees as per spec), but I figured the easiest way to check the cam timing would be to just see if any other 22R nuts would either know or be able to check to see if the marks on my cam pulley and timing chain look correct. The engine is sitting at TDC in the following picture:





If it helps at all, you can just see the little nub in the middle of the front rocker tower which is pretty much the centre-line of the cam itself. I tried to line the camera up as close as possible to this line to show the offset of the bright link in the chain and the timing mark on the pulley. If anyone would be willing enough to pull the valve cover off their own 22R and wind it around to TDC for a comparison, I'd be most appreciative.

Thanks guys.

[marvis]

It's been a while but that looks fine to me.

I had mine jump a tooth doing the same thing, on the bottom and I had the same problem.

[ill-minded]

Dandy.

If anyone else can also confirm, this will put my worries to rest for good.