When to know to get out? I.e. sell.

[DavidKFla]

If ice on the lid has caused a single blower failure, I’d like to see it.

Let me look into the library for pictures and video that I don't have.
You can do it to your car but I'm not going to with mine.

 

[Jack_Toepfer]

Let me look into the library for pictures and video that I don't have.
You can do it to your car but I'm not going to with mine.

Just saying, it’s never happened and hundreds of guys have iced their lids in the pits and continue to do so. If the tolerances were so tight that their different expansion rates would cause problems when you ice the lid, they’d fail as they get hot too, but they don’t.

 

[DavidKFla]

Just saying, it’s never happened and hundreds of guys have iced their lids in the pits and continue to do so. If the tolerances were so tight that their different expansion rates would cause problems when you ice the lid, they’d fail as they get hot too, but they don’t.

As I stated earlier. You do things your way and I'll do mine the fantasy way...

 

[covidcommander]

just wondering why there are alot of blowers for sale with rotor damage? Almost everyone I see requires new coatings on the edges....

Just wondering why I see so many of them with the rotor edges wiped out? Just saw another one for sale

No one says what happened thou.....

 

[16GoManGoHC2]

just wondering why there are alot of blowers for sale with rotor damage? Almost everyone I see requires new coatings on the edges....

Just wondering why I see so many of them with the rotor edges wiped out? Just saw another one for sale

No one says what happened thou.....

Heat does come into play from high IAT’s so cooling off the blowers by icing the lid may help the engine make more power from a cooler air charge but it does little to cool the blower lobes and yes they grow and clearance between the rotors diminish and the first thing that starts touching is the rotor tips in the valleys of the opposing rotor, that’s why the tips loose their coating first. Here’s what the clearance looks like in a properly timed blower, about .006” per side, that doesn’t change a whole lot on the sides of the lines when the rotors get hot but their OD’s do grow, on both, and that’s why the tips start touching the valleys first and the coating starts getting chipped off.

 

[Jack_Toepfer]

just wondering why there are alot of blowers for sale with rotor damage? Almost everyone I see requires new coatings on the edges....

Just wondering why I see so many of them with the rotor edges wiped out? Just saw another one for sale

No one says what happened thou.....

Most people blame overspinning the blower, or using an un-clutched pulley, which stresses the blower on decel.