Todd951968

I found out recently that I need a new fan shroud on my 1980 SC. The part # on the one I took off the car is 901 106 101 5R, which looks to be for a 1969-1977 911???? I thought it looked to be original to the engine and the engine original to the car.

Through a Search, I found that the 1980 fan shroud # is 930 106 102 OR. Are these interchangeable?

theiceman

I would not think so given they are different part numbers , but the fact you had an older one on your car would indicate it is in fact useable.
having said that could yours have cracked because it was not in fact beefy enough so they went to a beefier one ?

Where is the part number ? mine is sitting in the garage with the alternator in it , if you would like I can see what is on my 78 .

Todd951968

The part number is on the top of the housing, so its clearly visible when mounted in the car. If you could check yours, that would be great.

theiceman

damn , now you are going to make me get out of my comfy chair ...

ok here it is
930.106.101.0R

look at that .. different again ..

theiceman

this from a post on Pelican .. thought it may be usefull.

Here's the complete rundown on the production fan shroud rings:

1. Early 250 mm Al sand cast shroud ring (no coil studs) 1965-'67.5 - Casting # 901.106.101.03
2. Early 245 mm Al die cast shroud ring (no coil studs) 1967.5 - Casting # 901.106.101.0R
3. Later 245 mm Mag die cast shroud ring 1967.5-'77 - Casting # 901.106.101.5R
4. Early SC 225 mm Al die cast shroud ring 1978-'79 - Casting # 930.106.101.0R
5. Late SC 245 mm Al die cast shroud ring 1980-'83 - Casting # 930.106.102.0R
6. 3.2 Carrera 245 mm Al die cast shroud ring 1984-'89 - Casting # 930.106.102.4R
7. 3.3 Turbo 245mm Al die cast shroud ring casting # 930.106.667.4R

Todd951968

So, this confirms what I've seen. I have shroud # 3 on your list, which is used from 1967.5 - '77. Now, I am wondering if I have a 2.7 engine instead of the 3.0 ! Or, if someone changed the shroud...if they are interchangeable. Size-wise #3 and #5 on your list are both 245mm. So, as long as there are no mounting changes, it could be feasible.

I can't wait to get home and check out my engine #

theiceman

yikes .. I like to think you have a 3.0 litre but ya never know, my buddy Just bought an 82 and when he popped the trunk I instantly saw the nylon fuel lines and the studs for the smog pump .. I said " dude that's not an 82 engine " his jaw just about hit the floor.

Todd951968

Yeah, I THINK I have a 3.0 but now feel like I need to confirm. This pic is all I have to go by at work. This was taken a few years ago while having work done .

theiceman

I have solved the mystery .. what you are looking at is the casting number , not the part number ... your casting number is correct for your car .. see below ..

Todd951968

I am not sure I get it. The number on my part is 901 106 101 5R. Isn't this the casting # for the 69-'74 models?

theiceman

that looks like it could be an 80 engine ...

there is no hole in the tinwork for a smog pump and the fuel lines look like they could be nylon. in 80 I think they went to an oxygen sensor and no smog pump buy still had nylon fuel lines , although its hard to tell from the pic.


the engine number will tell us for sure.

theiceman

oh sorry I misread your post ., let me look again

.

theiceman

looks like it was used up to 77 with the same casting number ... . I think you want to get the one for your car for sure . I would not interchange , although the specs look close.

Todd951968

Thanks, I will post engine # findings once I've checked. I agree, it is prudent to stick with the casting # that I have. Thanks again.

theiceman

BTW inquire at vertex, if you cand fnd used they may have a repro