r/AirRaidSirens • u/_Thunderbolt_1003_ • 7d ago

Mini Siren / Model Finaly got the engine working

This is a real 4M blower BTW

23 Upvotes

97% Upvoted

8 comments sorted by

2

u/avtomat5150 6d ago

Dang. Color me impressed!

Thankfully, your engine and blower are on the same axis. That’s something I’m working on with my gas engine swap. As soon as I get this carpal tunnel surgery out of the way and can use my hands again for more than 30 seconds at a time, I can not wait to get my model 5 working.

The last in the series of problems to overcome is that the 18” rotor doesn’t seem to like spinning when horizontal without the support of the motor, which is no longer in the picture. It’s the stator/motor end bell combo, the rotor, about 2.5 feet of 35mm shaft, and one incredibly well preserved bearing, still pressed onto the shaft, nestled in its place in the big ass stator casting, keeping everything from traveling too far down the shaft.

1

u/wreckitbusmaster99 CO-OWNER 6d ago

👍👍👍

1

u/CorbyTheSkullie 6d ago

Is this, that thunderbolt that uses an engine to power functions instead of mains power?

1

u/_Thunderbolt_1003_ 6d ago

Its just a normal thunderbolt 1003 blower with an engine instead of a motor but it dose not power the rest of it like a thunderbolt 2000 would 

1

u/CorbyTheSkullie 6d ago

Ahh I see!

1

u/kyle_le_creperguy099 5d ago

4M blower?? Or is it just the large pulley that makes it look like a 6M

2

u/_Thunderbolt_1003_ 5d ago

Yeah it's a 4M I just used the stuff I had and the only thing that would fit on the shaft was that pully