EastBay

What do you guys think?



BTW, good idea to keep the water drained out of the case. I felt like a dentist pick, picking away at these suspicious spots until the holes opened all the way up

theiceman

no idea what this is ,is this from a 911 or a 996?

a 996 rusting out like that ? wow ..maybe somepics from further back , and youmay want to put them in the 996 forum

rusnak

looks like a nice paperweight.

EastBay

it's a 1975 2.7 air cooled case

theiceman

really hard to tell it is so close .. doesn't look promising.

jakeflyer

I doubt it can be saved. If this is a rebuild project, you may want to check out the costs and problems of the S engine. The 3.0 of the SC is a better choice.

Brads911sc

Id pass...

Pick up a good used SC case or used Sc engine and replace whats needed. Can get a used case for less than it will cost to make this one reliable...

race911

An SC case isn't the same as a this. Where's this 2.7L project going? I guaran_______tee you that if this 7R were from a '73RS, you'd fix it. For a generic 2.7L car, just find another for a few bucks. I might have one or two good ones. I know I have one that had a crappy timecert job done you could have free. No guarantees.

whalebird

3.0 SC motors are easy to find and make a nice retrofit into the midyear cars. If you are looking for concours originality; look for any other of the multitudes of 2.7s laying around.

EastBay

I dropped the case off at the shop this week and they think it might be weldable, we'll see what comes of it.

thanks for the generous offer Ken

Ed Hughes

OK, so explain to us common folk why you need to drain the water out?

rusnak

I dont think I'd want to run a welded mag case without a lot of expensive machine work afterwards. It's a money game at that point.

pettybird

+1. too many 7R's out there to mess with a funky one.

Edgy01

Move to an aluminum case. Porsche really screwed up big time for several years when they attempted to shave some weight off the cars by using magnesium cases instead of aluminum. It nearly cost them their business! With the arrival of the 1978 911SC they finally fixed the problem with an aluminum case. Many have chosen to update their 2.7 litre 911s with the 3.0 911SC case. As you can see, magnesium has a problem with corrosion.

race911

Don't really recall any problems with '69 2.0, 2.2 or 2.4L engines/cases. How about a '73 RS? Can also throw the '74s in too, for the most part. The problem was heat from the thermal reactors required on CA cars starting in 1975 (and I believe 50 state by 1977), and lack of a front oil cooler. Air conditioning didn't help, either.

But back to the architecture of the engines. Not going to drop a 2.4/2.7 style 70.4mm stroke crank in an SC case. And the factory did produce aluminum cases starting in 1974; some oddball version of the car called the 930. Then, a year later, lo and behold a normally-aspirated 3.0 came on the scene using the same crankcase. But if you want to remake your 2.7 into one of those, sure the crank (and everything else) will fit, except you'll need 95mm cylinders.