PITA PO Stunts
09-23-2007, 12:45 PM
#46
Chronic Tool Dropper
Lifetime Rennlist
Member
Lifetime Rennlist
Member
That hole is the result of blower resistor pack meltdown. It's the problem that Magic Blower Syndrome is intended to cure.
Aryan-- First steps on the project include removing the blower motor, cleaning all the leaves and debris from the area where the blower was sitting. Then carefully clean the outer fin surfaces of the AC evaporator, accessible through that duct once the blower is out of the way. Make sure the water drain line/hose is clear from the bottom of that housing through to where it vents under the car. The pollen filter option on '94 & '95 cars is a micro filter intenede to capture very fine dust and pollen. It's not intended to save you from leaves and small tree branches that might get past the blower. It's not a practical retrofit to earlier cars that don't have the little rails the filter clips to.
FWIW, the patch you had on the blower housing is probably the best practical repair of that damage short of pulling the dash and replacing the whole airbox as a unit.
Aryan-- First steps on the project include removing the blower motor, cleaning all the leaves and debris from the area where the blower was sitting. Then carefully clean the outer fin surfaces of the AC evaporator, accessible through that duct once the blower is out of the way. Make sure the water drain line/hose is clear from the bottom of that housing through to where it vents under the car. The pollen filter option on '94 & '95 cars is a micro filter intenede to capture very fine dust and pollen. It's not intended to save you from leaves and small tree branches that might get past the blower. It's not a practical retrofit to earlier cars that don't have the little rails the filter clips to.
FWIW, the patch you had on the blower housing is probably the best practical repair of that damage short of pulling the dash and replacing the whole airbox as a unit.
09-23-2007, 04:01 PM
#47
Pro
Join Date: May 2004
Location: Mill Creek, Wa
Posts: 628
Likes: 0
Received 0 Likes
on
0 Posts
Ok - this one was a REAL PIA. Passenger side fender well - guess the guy had a rattle and he used the spray foam sealant - filled the entire fender well, and then it leaked of course and fill the heater core area... someday.. who knows.. I may hunt him down and fill his pockets and shoes with foam..
09-24-2007, 06:02 PM
#48
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
The pollen filter option on '94 & '95 cars is a micro filter intenede to capture very fine dust and pollen. It's not intended to save you from leaves and small tree branches that might get past the blower. It's not a practical retrofit to earlier cars that don't have the little rails the filter clips to.
Wouldn't a filter intended to stop very fine particles also stop larger objects?
I agree with the impracticality of retrofitting. Will give it a shot however - see how it holds up. Need something to do on the weekend since I'm waiting for my x-pipe..
Cheers
Aryan
09-24-2007, 07:01 PM
#49
Electron Wrangler
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Having seen the Porsche pollen filter implementation details Herman has posted - I do think its practical to implement the pollen filter on an earlier car - but probably not for the feint of heart!
The implementation Porsche did does not seem difficult to emulate. Probably the biggest challenge is molding a new plastic lid for the airbox and fabricating a retention mechanism for the lid and filter element. I have investigated some high flow HEPA filters and sizing (possibly with some minor rework) seems quite doable. Probably also even with the stock sized filters (but they are more expensive)
At the moment I don't even see why Porsche relocated the resistor pack - it seems to me that it would work with the filter in place... if not - the '94 resistor pack location could be adopted and the plenums connector hole patched in a similar manner to the lid.
I do plan to implement this on my car - but have not had time yet - ideally it needs to be tackled & finished in one go. I'm even considering a clear lexan lid so filter condition is easy to assess - a functional improvement even over the Porsche lid. I've been experimenting with manual molding of Lexan sheets over the summer... a little tricky but doable to the level needed for this using just an oven, heat gun & molding templates.
Alan
The implementation Porsche did does not seem difficult to emulate. Probably the biggest challenge is molding a new plastic lid for the airbox and fabricating a retention mechanism for the lid and filter element. I have investigated some high flow HEPA filters and sizing (possibly with some minor rework) seems quite doable. Probably also even with the stock sized filters (but they are more expensive)
At the moment I don't even see why Porsche relocated the resistor pack - it seems to me that it would work with the filter in place... if not - the '94 resistor pack location could be adopted and the plenums connector hole patched in a similar manner to the lid.
I do plan to implement this on my car - but have not had time yet - ideally it needs to be tackled & finished in one go. I'm even considering a clear lexan lid so filter condition is easy to assess - a functional improvement even over the Porsche lid. I've been experimenting with manual molding of Lexan sheets over the summer... a little tricky but doable to the level needed for this using just an oven, heat gun & molding templates.
Alan