Tuesday, August 12, 2014

Cylinder Heads

I got the heads back from the machinist and they look great! Makes me want to send him the cam boxes too as they look really horrid in comparison now.

Interestingly enough while installing the head gasket from the engine gasket set I got (branded "Guarnitauto"), I noticed that one water hole in the block does not exist on the cylinder head. The head gasket seals the hole in the block too so I suppose that was how it was meant to be for the 1608cc.

Before installing the head I got to try out my new dial gauge to set TDC. Which on something like this 4-cylinder is completely unnecessary. I could probably "feel" TDC by moving the crank by hand and be within 2 degrees.

I also needed to torque down the auxiliary shaft pulley. Which was a bit tricky since I couldn't find anything to hold the aux shaft. I had an old oil pump I thought I could use by jamming the gears but I was worried it would strip the teeth in the drive gear/bush. Eventually I reverted to just using some bailing wire through the two timing holes. This was sufficient to get the 58lbs needed for the pulley.

And here's a tip for replacing the water pump, replace the bolts too! I snapped one in the block but I was lucky that I had cleaned the threads first so it came out very easily. There are 4 m6-1.0 bolts. Two 25mm and two 45mm.

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