Got new SC engine in garage - got questions!

[Bo]

I finally located an engine for my car! A 82 RoW-engine. Milage unknown.



It was out of the PO's car, so I could only do basic testing.
*Compression was 150psi on 5 out of 6 cyl. #6 was 140psi. Pretty good, from what I understand.
*Plugs looked excellent.
*Pulled all valve covers - no broken studs
*No signs of excessive oil-leaks anywhere.

BUT - it appears that some plumbing is missing here! Can someone look at the pic and tell me what I need to get?
Am I correct to assume that the "yellow" ends connet, as do the "red" ends?
What about the "green" tube that has been plugged? Did that use to connect to the air-pump, which apparently have been removed? Shall I just leave it as is?

Do I **need** an airpump? (pollution control aside; I don't have to worry about that, since cars older than 76 are exepmt from that where I live).

Thanks!


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1972 911S Targa
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My project!

[wckrause]

The yellow ends get connected by a plastic hose. This pic shows part of it.

http://www.pelicanparts.com/911/911_Parts/1978-83/1-1.JPG

The red ends get connected by another hose, the same kind that Y's off to the other heatexchanger.

Pelican sells the heat exchanger hoses, and there are generic hoses that can be used.

I'd like to know what the green thing is too. I've just got a hole in the sheet metal where it used to be.

[This message has been edited by wckrause (edited 08-20-2001).]

[osidak]

the green hose from the airpump to the air injection ports. If you aren't concerned with emissions pull it and plug the air injector ports which are located next to the exhaust valves.

[wckrause]

Bo,

One of the pieces you need is listed in the 911 Parts Forum

http://www.pelicanparts.com/ultimate/Forum12/HTML/003795.html

He calls it a plastic snorkel.

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Bill Krause
'79 911SC Euro
MY PELICAN GALLERY

[RarlyL8]

Congrats on your purchase!

You may wish to take this opportunity and remove ALL that crap. You don't need any of it if smog is not an issue. Fit some SSIs or early exhaust and throw out the heater fan too. It is all gone on mine, makes it easier to work on and look at!

[Bo]

Any pics RarlyL8?

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1972 911S Targa
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My project!

[JBH01]

The line you have plugged was once attached to a smog pump that pushed air into the exhaust system - it was a way to meet emission specs by diluting the exhaust stream (it probably also provided some oxygen to a catalyst system). You are much better without it

I thought only the 78 SCs had the smog pump. May want to check the engine number to see if '82 is correct.

You can toss the heater blower, but I might keep it and route the heat flow to the outside. Keeping the headers cool by blowing air through them is one way to help cool the engine. If heat is still important in your part of the world, perhaps you could fashion a bypass valve that ejects heat in the summer, but allows it to be directed to the cabin in the cooler months. I don't know if anyone has tried this.

That's a pretty good photo you posted that allows people to see some of the components of an SC engine that would otherwise not be visible. If you don't mind, could you send me some pics at different angles and views - I will append them with notes pointing to the various pieces. It would be nice to augment a parts diagram with some actual photos.


[This message has been edited by JBH01 (edited 08-20-2001).]

[gblumenstock]

I have a 79 SC (12/78 mfg) and I do have the smop pump as well.

GB

[gblumenstock]

Looking at the picture, we could guess that the engine is at least a 1980 since P switched over to the metal fuel lines that year.

GB

[wckrause]

" you could fashion a bypass valve that ejects heat in the summer, but allows it to be directed to the cabin in the cooler months."

The heater flapper boxes do just that. They direct air to the outside when your heat is off, and then route it inside when your heat is on. So you always have air flow through the heat exchangers.

Your options are,

1. Keep it stock, and find missing pieces
2. Find shroud pieces to revert to earlier style with no aux blower motor. (this lets you keep heat).
3. Plug up everything, and lose your heat.

Number 2 is a good choice if you can find the shroud pieces.

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Bill Krause
'79 911SC Euro
MY PELICAN GALLERY

[This message has been edited by wckrause (edited 08-20-2001).]

[Bo]

Thanks for all the input guys!

As far as numbers go, it's a verified 82, type 930/10, and the serial includes a "C", as an 82 should.
But you had me worried there for a sec...

I don't use the car at all during the winter, because of the snow and salt on the roads, so heat is not really an issue for me. Nonetheless, I've decided to get the missing plumbing, but skip the air pump.

I may opt for SSI's eventually, but my main focus right now is to get the engine into the car and running.
I'll do some basic cleaning of the engine first, get the fan clean, and paint the frame that holds the engine. Change filters, valve gaskets and plugs, and that sort of basic stuff too.
Oh, and a pop-valve shall be added!
The hydraulic tensioners are already there, thankfully.

I'll post some before and aft. pics once I'm done. But I'm sure I'll post more Q's before that...

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1972 911S Targa
************************
My project!

[RarlyL8]

Sorry, I don't have any good pictures of the 3.0L currently in the SC.

For about $500 you can backdate your exhaust to pre-74 and remove all that stuff. Keep it in a box for the next owner.

[SeaDweller]

I've got the plastic accordian hose that goes to the yellow connections on your diagram. If you're interested, pay for shipping and it's yours........

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Michael
'78 911SC Euro

[epbrown]

Bo, I'll be following your pages with interest, as this is exactly what I'd like to do in a year or three (1972 Targa with 3.0ltr engine). My plan is pretty much as RarlyL8 lays out - go to the SSI exhaust and upgrade the muffler. In my wilder imaginings, I consider going to Webers as well. Personally, I'd keep the heating system. There's a big difference between "not driving in winter" and not driving the car when it's cold! We've had cold fronts sweep through that had me pulling the heat levers in July. Heck, I also plan to add the cross-over tube mentioned in the "911 Performance Handbook" just in case.

Calculating from the book above, a 72 Targa would be pretty spry by the time you're done. Without the emissions stuff, you should be at 204 hp (well, yours is an RoW, so that's moot), add another 20 for the SSI exhaust (re. the Handbook) and throw in the lighter weight compared to an SC and you've got a nice little Porsche on your hands.

Emanuel

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Everybody wants a normal life and a cool car;
most people settle for the car." Chris Titus
1966 Rolls-Royce Silver Shadow
1983 Porsche 911 SC Targa

[This message has been edited by epbrown (edited 08-21-2001).]

[Bo]

Thanks for all the help!


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1972 911S Targa
************************
My project!