I finally split my 1.7 case, pics added Options

[rwilner]

I was told this engine came from a 1.7 that was in a 914. I'm tearing it down to rebuild into a 2056.

First, I found an M12 or M14 triple square bolt with a spring under it. This bolt is located between two pushrod tubes. I'm guessing this is the oil pressure relief since I didn't find the giant slotted plug I was expecting to find...true?

Second, there is no windage tray. Did the early motors not have a windage tray? Should I source one and install it? I don't see anyplace in the casting that would receive the tray...

Third, I didn't find the serial number where I expected it to be -- in front of the breather tower. Where else could it be?

It seems like a low mile case to me...lifters and cam bearings show minimal wear, the cam looks to even be reusable to my untrained eye. If I had to guess i'd say this was a low-mile motor that got parked due to FI problems or something.

have no pics but will post some tonight.

[Valy]

1. Take the dowel pins out now and keep them safe.
2. Make sure you got the dizzy drive special washer out too. Keep it safe as well as it's a PITA to look for it in a pile of bolts and washers.
3. This deformation in the case matting surface seems not important to me.

4. The cam is toast. Here is the depression I was talking about. If the gear is good (they usually are) keep it. You just need to cut it a bit in the middle to make place for the bolts. It's usually cheaper then just a new cam gear.

5. I can see you have the slots for the windage tray.
6. I don't like the color on the bearings. Is it just dirt or burn marks?
7. Check the bearing external size to see where you are. STD big bearings should be 60.0mm and the nose bearing should be 40.0mm. Next step is 60.5mm and 61mm but the later are very rare. If you need, I know a source but maybe a different case will be cheaper.

I would not bother too much cleaning the case. Send it to the shop and after a run in the parts cleaner will make it cleaner than you'll have it after a week of work. They will clean it anyway as you just can't clean all that stuff.