autox19
Member
So I have this lovely swap I have been working on FOREVER. we are now down to this. Timing we believe is off. We have lined up the cams with the proper arrows and checked it against the keyway on the cam. now on to the crank pulley after looking for what seemed like days, we finally found the little 3 marks and the TDC mark. when we lined it up to the belt cover it was pointed to about 11:00. here is where it gets interesting. we had ~ practically no compression. OK, going old fashioned. took the spark plug out of calender 1 and put a long screw driver in. Turning the crank counter clockwise we found TDC. the TDC pointer on the crank pulley was at 2:00.
I happen to have a second motor on a stand and when we used the old method, TDC had the pointer pointing to the right place. hmmmm (cant test compression on that engine because the head has no valve train) When we use the screwdriver TDC on the engine in the car, we get ~125 psi dry. (car still wont start, but that is a nother story.)
WTH. I originally though the key was broke, but fro what I read it wont just slip, it will go kablooey. if it spun more than 30 degrees I would think it would have bent valves, but the 125 psi keeps me thinking if it bent, I wouldnt get that high of readings. let alone consistent across cylinders. +/-2 psi
heeeelppppp!!
Odie
B16 Fiat X1/9
I happen to have a second motor on a stand and when we used the old method, TDC had the pointer pointing to the right place. hmmmm (cant test compression on that engine because the head has no valve train) When we use the screwdriver TDC on the engine in the car, we get ~125 psi dry. (car still wont start, but that is a nother story.)
WTH. I originally though the key was broke, but fro what I read it wont just slip, it will go kablooey. if it spun more than 30 degrees I would think it would have bent valves, but the 125 psi keeps me thinking if it bent, I wouldnt get that high of readings. let alone consistent across cylinders. +/-2 psi
heeeelppppp!!
Odie
B16 Fiat X1/9
