LWFW and A/C noise
09-01-2011, 11:26 AM
#1
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LWFW and A/C noise
I did a search and haven't found anything about this except on comment that there car sounded like a diesel when the A/C runs with a LWFW in neutral.
After a drive and the engine is warm it is the worst of course, what surprises me is that having the A/C on makes such a difference to the LWFW rattle is this normal? when I push in the clutch the noise goes away 85% but not totally the rattle is louder with the A/C on and off with the clutch depressed. Is this normal?
Thanks for any input
Jon
After a drive and the engine is warm it is the worst of course, what surprises me is that having the A/C on makes such a difference to the LWFW rattle is this normal? when I push in the clutch the noise goes away 85% but not totally the rattle is louder with the A/C on and off with the clutch depressed. Is this normal?
Thanks for any input
Jon
09-01-2011, 11:33 AM
#2
RL Community Team
Rennlist Member
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Once the engine and transmission are warmed up, my LWFW is very noisy, both at idle with the clutch released, and up to about 2000 RPM if I'm not accelerating hard. The noise is louder anytime the A/C compressor is engaged.
The LWFW is essentially a megaphone attached to the engine.
The LWFW is essentially a megaphone attached to the engine.
09-01-2011, 05:04 PM
#6
Race Director
I did a search and haven't found anything about this except on comment that there car sounded like a diesel when the A/C runs with a LWFW in neutral.
After a drive and the engine is warm it is the worst of course, what surprises me is that having the A/C on makes such a difference to the LWFW rattle is this normal? when I push in the clutch the noise goes away 85% but not totally the rattle is louder with the A/C on and off with the clutch depressed. Is this normal?
Thanks for any input
Jon
After a drive and the engine is warm it is the worst of course, what surprises me is that having the A/C on makes such a difference to the LWFW rattle is this normal? when I push in the clutch the noise goes away 85% but not totally the rattle is louder with the A/C on and off with the clutch depressed. Is this normal?
Thanks for any input
Jon
The LWFW does not provide this vibration dampening.
When the A/C compressor is on the compressor presents enough of a load that provides something like a vibration dampener effect, though it is not perfect and not nearly as good as that provided by the stock flywheel.
Sincerely,
Macster.
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09-01-2011, 10:03 PM
#8
Race Director
You are right. I misread his post. Also, I was reading a bit of my experience in the OP's post because I notice my car's engine is a bit quieter with the A/C on even though it is not loud to begin with but the A/C being on does tend to quiet the thing some.
In the OP's case, that he hears more noise, I wonder if the noise is a serpentine belt getting past its change by date or a tensioner getting weak and letting the belt slap about?
Sincerely,
Macster.
In the OP's case, that he hears more noise, I wonder if the noise is a serpentine belt getting past its change by date or a tensioner getting weak and letting the belt slap about?
Sincerely,
Macster.
