Fan Housing compatibility SC 1982

[iiXii]

Hello !

I had to replace my Fan Housing. Number is : 930.106.102.0R for 245 mm.
SC 1982

Can i put 930.106.102.3R, 930.106.102.4R or 901.106.101.5R ?

Thanks !

Nicholas

year # fan blades fan diam (mm) fan P/N shroud P/N shroud casting type shroud casting # shroud depth (1) (mm) Alterntor Current (amps) alternator length (2) (mm) comment crank pulley diam (mm) fan pulley diam (mm)
1965-66 11 250 901.106.101.03 901.106.101.03 sand cast Al 901.106.101.03 86 35 114 no coil studs 110 95
1965-66 11 250 901.106.101.03 901.106.101.04 sand cast Mg 901.106.101.0R 86 35 114 no coil studs 110 95
1967 11 245 901.106.010.03 901.106.011.00 sand cast Mg 901.106.101.0R 86 35 114 no coil studs 110 95
1967-68 11 245 901.106.010.03 901.106.011.00 die cast Mg 901.106.101.0R 86 55 114 no coil studs 110 95
1969-74 11 245 901.106.010.03 901.106.011.00 die cast Mg 901.106.101.5R 86 55 114 with coil studs 110 95
1975-77 3.0 Turbo 11 245 930.106.012.00 911.106.008.00 die cast Mg 901.106.101.5R 95 70 123 with coil studs 130 83
1975-77 5 245 901.106.011.00 911.106.008.00 die cast Mg 901.106.101.5R 95 70 123 with coil studs 130 83
1978-79 11 226 930-106.011.01 930.016.005.00 die cast Mg 930.106.101.0R 95 75 123 with coil studs 130 80
1980-83 11 245 930.106.012.00 930.105.006.00 die cast Mg 930.106.102.0R 95 75 123 with coil studs 120 83
1978-89 3.3 Turbo 11 245 930.106.012.00 930.105.006.00 die cast Mg 930.106.102.0R 95 75 123 with coil studs 120 83
1984-86 11 245 930.106.006.07 930.106.102.07 die cast Mg 930.106.102.3R 106 90 137 with coil stud hole 120 83
1987-89 11 245 930.106.006.07 930.106.006.07 die cast Mg 930.106.102.4R 106 90 137 with coil stud hole 120 83

[Flat6pac]

Not knowing the numbers because the paper work is not available the answer is 19mm thickness of the back where the alternator rests and bolts to. It started with the 1975 model year for the 901 part #. The 78/79 housing is too small for the fan but then the 80 to 83 SC will do your need.
Bruce

[iiXii]

ok thank for your answer.

It's quite complicated beacause there is a lot of 245 mm on sells offer and i do not know the compatibility annonce

[Flat6pac]

you have a PM
Bruce

[tom1394racing]

Here is a summary of the various fan/shroud/alternator combinations

[iiXii]

Thank you tom !

With your post, i understand taht i can only take the 1980 - 83 SC or 78 - 89 3.3 turbo because de shroud casting are differents

[tom1394racing]

You can use the earlier '75-'77 shroud. It has the correct alternator depth.

You can also use a '67-'74 shroud if you have the alternator mount face machined 9 mm deeper to allow for the larger alternator.

[iiXii]

Originally Posted by tom1394racing

You can use the earlier '75-'77 shroud. It has the correct alternator depth.

even if the crank pulley diam is 130 in stead of120 ? thank again
You really help me.

[safe]

Originally Posted by iiXii

even if the crank pulley diam is 130 in stead of120 ? thank again
You really help me.

The crank pulley has nothing to do with the fan shroud.
If you would also use the fan, you would have to think about the pulleys.

[iiXii]

Originally Posted by safe

The crank pulley has nothing to do with the fan shroud.
If you would also use the fan, you would have to think about the pulleys.

Ok thanks my fan is ok.

You can see here the probleme:

[iiXii]

This one looks ok

TheSamba.com :: VW Classifieds - Porsche 911 Alternator / Fan Housing

[iiXii]

part 901.XXXXXXXXXXXXX are in fact not compatible

[Matthew Barnes]

Originally Posted by tom1394racing

Here is a summary of the various fan/shroud/alternator combinations

Finally a single sheet that lists all the info on the confusing puzzle.

I have a cracked 83 SC shroud with alternator and a complete 71 E shroud with motorola. Since the alternator / recess specs don't match (discovered by trial fitting....school fees) I was thinking of swapping them with alternators attached.

After searching and reading about 5 different threads on VRs - that went right over my grade 9 electronics head - I found this answer.

Brilliant.
Thank you.

[Walt Fricke]

iiXii - So what's the problem? If it is the surface corrosion, you can clean that up. It's not going to affect the performance of the fan.

The usual reason to replace housings is that they have a big crack somewhere. Often in one of the three blade-like parts which holds the center housing to which the alternator attaches.

Is that a crack on the boss which holds one of the bolts for the ignition coil plate? If so, I'd think that could be fixed.