CoolingDiscuss all of the aspects of cooling that you can think of! Radiators, transmissions, electric fans, etc.
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Replace the motor mounts probably. Both items (fan and radiator) are in a fixed position. The (assuming original) rubber motor mounts collapsing would be my guess.
Unless the shroud has been taken off before and not replaced right or, the radiator isn't stock .
__________________ "It may look like I'm doing nothing, but I'm actively waiting for my problems to go away."
- '87 Formula Firebird - never ending project
- '91 RS Camaro - beater
- '93 Z28 - donor
- '71 Camaro LT - as if I need another project.....
Replace the motor mounts probably. Both items (fan and radiator) are in a fixed position. The (assuming original) rubber motor mounts collapsing would be my guess.
Unless the shroud has been taken off before and not replaced right or, the radiator isn't stock .
How would I know that my motor mount are collapsing?
Replace the motor mounts probably. Both items (fan and radiator) are in a fixed position. The (assuming original) rubber motor mounts collapsing would be my guess.
Unless the shroud has been taken off before and not replaced right or, the radiator isn't stock .
you were right it is the motor mounts
found out why my mechanical fan was rubbing against the fan shroud. My motor mounts are on there way out and I have a performance aluminum mechanical fan. I thought it was stock. I think I will get some Energy Suspension polyurethane motor mounts. Any suggestions?
Just keep in mind with those you have to take the old mounts apart and use those as inserts. Poly mounts will also add a bit more of noise and vibration into the car.
I personally opted to just put new rubber ones in my 'bird. I figured they lasted as long as they did. It's personal preference though. either way, it's quite a bit of work to replce the mounts.
Personally (which I did with my ex-'84), if the mounts aren't just total trash, I'd consider just putting in an elect fan. It's less clutter (fan shroud), eases stress on the WP bearing, reduces drag on the motor (free HP) and helps mpg.
Just keep in mind with those you have to take the old mounts apart and use those as inserts. Poly mounts will also add a bit more of noise and vibration into the car.
I personally opted to just put new rubber ones in my 'bird. I figured they lasted as long as they did. It's personal preference though. either way, it's quite a bit of work to replace the mounts.
Personally (which I did with my ex-'84), if the mounts aren't just total trash, I'd consider just putting in an elect fan. It's less clutter (fan shroud), eases stress on the WP bearing, reduces drag on the motor (free HP) and helps mpg.
Mind you, personal preference and just my opinion.
will the poly mounts destroy the car or will it eventually break in and stop making noise and vibration?
the electric fan looks awesome what do you suggest. But that is for sometime in the future.
If you engine is mostly stock, you probably won't notice a huge difference over (new) stock mounts as far a vibration (from a higher Hp motor and lumpy cam). So I wouldn't worry about it shaking the car apart.
Noise is just more or less resonant engine/drivetrain frequencies, it won't really go away due to the fact poly is less flexible (elastic, I guess). Again, not much but, more than rubber.
Something stock or a v6 stock fan would easily do on a stock 305.
I have a v6 grand prix fan on my 91, does what is should. mid 90's, ultra humid, A/C, 195°F from parking lot to driveway (28 mile trip).
The single fan on my duals for the 'bird kept it at a steady temp.
The flexalite electric on the '71 is as useless as as spitting on the radiator to keep it cool...
