2.0/4 Get case apart?

[kachemakian]

I have all new bearings etc to put into the 2L that I am going to finally put in my 72 914. I have everything off the crankcase, and I do not want to damage the cases when splitting them. If someone has a proven method, I am all ears!

Leon in Alaska

[Dave at Pelican Parts]

Double-check the bolts. There are a few that are easy to miss. The one behind the flywheel, for instance, or the one between the pushrod tubes. And dirt can hide just about any of them. The usual answer for "I can't get the case apart" is "You missed a bolt". Though occasionally sealant will hold the two halves together.

Once the bolts are all out, some medium-hard tapping with a rubber mallet is usually all it takes to split the case. There are expanding tools you can put in the oil pump bore, but if you have missed one or more bolts you will break the case by doing that.

--DD

[Joe Ricard]

If memory serves there are like 13 of them little buggers.

[kachemakian]

All right, counting here boss!

I took off 23 fasteners that crossed the split. 6 large, 15 with a 13 mm wrench, and 2 with a 10 mm wrench near the oil filler/crankcase vent.

I don't believe that this case has ever been apart, but a PO had been into the cylinders. #1 piston DID NOT have an oil control ring on it, at all! I found a piece of it laying on top of the oil pan area back in where the pushrod tubes go into the crankcase on the outside of the engine. No other visible damage to the piston. Just a lot of carbon. It must have been a plug fouling PITA and the reason it was shelved for the last 25 years.

I was fortunate in that the last owner of this engine before me had collected a set of loaded cylinders, all bearings, gasket set, clutch + pressure plate, throwout bearing, lifters, valve adjust screws, all filters, and a dizzy cap. All of these items are 30 year old OEM stuff. The piston, ring, wrist pin cylinder sets are Mahle. Also it appears that it had a fresh valve job done on it before it was last assemled.

I am going to attempt to recomisssion the fuel injection system as the 1.7 in the car has a carb on it.

I will try some more this evening after work to get the cases apart.

Leon

[Joe Ricard]

JUST DO NOT PRY ON THEM !!!!!!!!!!!!!!!!!!!!!!

Obviously you have the oil pump removed.
Have you taken the flywheel off the crank? there are nuts and bolts behind it as well.
The tricky one like Dave said is the oil pick up bolt ( long and way down inbetween the cylinders at the bottom.

[kachemakian]

I took the flywheel off first. "Bolts behind flywheel ", or is it 1 bolt with nut behind the flywheel?

[Dave at Pelican Parts]

Just one nut and bolt behind the flywheel.

Here's a thread on the 914world BBS that shows the locations of all of the bolts:

914World.com - A Porsche 914 Community / Forum / Club

--DD

[kachemakian]

Thanks Dave! With the pictures and arrows that link I was able to find 2 more that I had missed. After that it came apart w/o any problems. Everything is in great shape. Thank you for the help. My engine has a serial number GA008238. Must be a 74? The charts seem to have too many 0 s between the A and the 8.

Leon

[Joe Ricard]

So now you need an air cooled engine stand.

[Dave at Pelican Parts]

8000+ could be a 74, I'm not sure. It doesn't matter much, though; 73 and 74 are very nearly identical.

--DD