Oil Pressure Relief Piston springs

[emcon5]

Wayne, I used the rebuild wizard to buy some of the parts for the rebuild of my 82. I installed the relief pistons in the case yesterday, and am a little confused about the springs.

The parts and technical reference book shows the 2 springs as the same P/N, 901-107-531-00.

The Parts Software That Must Not Be Named shows 2 part numbers, the 901.x above for the side of the case, and 930.107.531.01 for the bottom of the case.

Your catalog shows only one P/N for the spring. If I search by the factory P/Ns, it returns the 2 Pelican part numbers, but both show as being for the side of the case.

In any event, the parts that the wizard spit out has 2 of the same size (short) spring. The springs that came out of my engine are clearly 2 different lengths, as are the ones pictured in your book. I am not positive, but I am fairly certain the springs I used had 930.x on the packaging, but I don't have it in front of me to verify.

The question is, what is the lower spring part number?

Thanks,

Tom

[Wayne 962]

Take a look at the engine book, page 138. Also, page 215. The longer spring goes into the bottom of the engine, and should be part number 930.107.531.01. The shorter spring should be 901.107.531.00.

A search through our catalog reveals two part numbers, A-107-531-00 and H-107-531-01.

I also checked out the wizard - and it does appear to be spitting out the correct part numbers.

I think that our warehouse sent you the early kit instead of the late kit. There should be two separate springs of different lengths. Your invoice should say:

A-107-531-00 Oil Pressure Relief Spring (sold per each, 2 required 911/911 Turbo 1965-77), 1 req. left side case 911/911 Turbo (1978-89) 2.50 1
C-107-512-00 Oil Pressure Relief Piston, 911/911 Turbo (1974-89) 11.00 2
H-107-531-01 Oil Pressure Relief Spring, right side engine case, 911/911 Turbo (1978-89) 4.45 1
H-107-533-00 Oil Pressure Relief Sleeve, 911/911 Turbo (1978-89) 3.50 1
J-123-106-30 Oil Drain Plug Sealing ring, 18 x 24mm, 911 All, 924S/944/968, with 17mm plug .50 2
K-064-026-02 Oil Pressure Relief Cap (sold per each, 2 required), 911/911 Turbo (1971-89) 8.00 2


Your invoice should say two different springs. Is that not what you received?

-Wayne

[emcon5]

Thanks for the reply Wayne,

Is it listed more than one place? I only see one spring here:



When I searched by the factory 930.x part number the description comes up as "Oil Pressure Relief Spring, right side engine case, 911/911 Turbo (1978-89)" This description combined with the wrong info in the factory "Parts and Technical reference" is what is screwing me up, I guess. It is the right side of the case, I guess I was expecting it to say "bottom of case"

I punched up the invoice, it lists the same stuff you listed. Looks like the wrong spring got packed. Oh well, **** happens.

Everything I recieved looks exactly like what came out of the engine, except both springs were the same. The old springs were long & short.

I am not mad, I just want to make sure I order the right parts. I'll call and place the order tomorrow. I need a couple other things anyway.

Here is a teaser:


Muhahahahaha

Tom

[Wayne 962]

Cool - looks sweat. 2.7 pickup in that distributor? Sorry about the wrong springs - they come unmarked when they get to us - they come jumbled in bags. I think our catalog is unclear - if you do a search on oil springs, they both come up. The wizard has been checked many, many times, it is very accurate...

-Wayne

[emcon5]

2.7 pickup in that distributor?

No, SC. It's Steve Weiner special. Gonna be powering 2 MSD 6As, once I figure out where to mount the big honkin' red bastards.

Tom

[Wayne 962]

I believe Steve does the 2.7 into the 964 combination. I'm personally going to be running dual HPX systems...

-Wayne

[HawgRyder]

Wayne...has anyone tried a coil-on-plug type of ignition?
I was thinking about it for my rebuild.
Bob

[emcon5]

Originally posted by HawgRyder
Wayne...has anyone tried a coil-on-plug type of ignition?
I was thinking about it for my rebuild.
Bob

I was pondering this last weekend. I have a 1998 Toyota Tacoma with a V6, that has coil on plug for one bank, with wires for the other. It looks like one coil for 2 plugs. The really interesting part is the plugs are pretty deep in the valve covers, and the connector looks a lot like a 911.

I wonder if something could be adapted.

Tom

[Wayne 962]

Hmm, my BMW has that, but I don't know of any solution that would fit the 911...

-Wayne

[emcon5]

I did some digging on the Toyota "Direct Ignition System". Apparently the coil fires both plugs on it's circuit at once, so the all plugs fire on both the compression and exhaust stroke. I assume this would be for emissions.

This would be a slick way of doing twin plug, if you could find a way to trigger it. Just connect the coil on plug into the top hole and plug the lead to the other plug on the same cylinder. Hell, you could even leave it firing on every stroke, to keep emissions down (assuming it could handle a high enough duty cycle for the higher engine RPM).

Interesting. Probably has a lot of potential, if someone figured out how to make it work.

There is some info in a PDF file here:
http://www.autoshop101.com/forms/h41.pdf

Tom

[TimT]

I looked into the coil on plug set up for my 911. It can be done I was going to use the boxter set up with Engine management to control the spark (and injectors at a later date). Yu would have to do som machining or welding on the valve covers in order to secure the coils.

In the end I made up some coilpacks. One of there days ill do the coil on plug method

coilpacks



This platform mounts between the carbs, the coils and igniters are mounted on this

[Steve@Rennsport]

Originally posted by Wayne at Pelican Parts
I believe Steve does teh 2.7 into the 964 combination. I'm personally going to be running dual HPX systems...

-Wayne

Hiya Wayne:

That 3.6 dizzy that Tom has there indeed, IS one of my conversions,...

We do a great many other cool things up here,....

[Wayne 962]

Originally posted by emcon5
I did some digging on the Toyota "Direct Ignition System". Apparently the coil fires both plugs on it's circuit at once, so the all plugs fire on both the compression and exhaust stroke. I assume this would be for emissions.

Nope, it has nothing to do with emissions. It mainly is a short-cut so that you don't need a cam-angle sensor, and can use one coil to fire two cylinders. There is a lengthy write up on this in the Engine Rebuild Book, about the TEC-3 (which is setup this way).

-Wayne

[Wayne 962]

Hey Steve! How the heck are ya? You should really stick around and post more often here - it's a great way to drum up some business - a lot of people here don't know about you...

-Wayne

[emcon5]

Originally posted by Steve@Rennsport
Hiya Wayne:

That 3.6 dizzy that Tom has there indeed, IS one of my conversions,...

Hi Steve. Purty, ain't it?

I like this too:


Tom

[Steve@Rennsport]

Hi Tom:

Ahhhh,"Candy" for the eyes, eh?

Hi Wayne:

I'm just great, and you????? I do wish I had time to do all things I like,....... You mean not EVERYONE knows about me????????? ROFLMAO.

[ValveFloat]

Coil on Plug:
I've been thinking about how one would do this also. What I was thinking was; using a coil on plug unit like the Denso ones used on motorcycles. They are a very compact unit that I think would fit in the 911. They would require engine management that trigger 6 or twelve coils, but I think some of the ECUs on the market now are capable of that.

[kstylianos]

Hey Steve! How the heck are ya? You should really stick around and post more often here

I agree

[cowtown]

Originally posted by emcon5

Everything I recieved looks exactly like what came out of the engine, except both springs were the same. The old springs were long & short.

Tom, you might want to take a look at this thread about springs:

Oil bypass springs - does a '77 need upgrading?

[1fastredsc]

Emcon, i'm so freaking jealous right now. Too bad Mr. clean doesn't make a magic spray chemical that can clean anything and everything. This way my motor can look like that before i put it together .