what does this hose do?
#1
Senior Member
Thread Starter
what does this hose do?
i was looking at a 12a fb today. it drove fine, is suppose, but when i opened the hood, i noticed there was a hose going from the front for the blue air cleaner can to a place near the bottom of the engine.
or rather, i noticed that this hose was disconnected and alsmost totally disintigrated.
what does it do?
or rather, i noticed that this hose was disconnected and alsmost totally disintigrated.
what does it do?
Last edited by thorin; 02-04-03 at 04:05 AM.
#2
I read your email
That's that hot air pipe. It takes warm air off the exhaust manifold and pipes it into the intake when the engine is cold. I think it's there to help keep the engine running when it's cold. Mine is off and it runs just fine.
#3
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ive never had mine on and ive never had a problem with cold starts, althought it never gets below 0 here
as long as u let the enigne warm up u shouldnt have a problem with the eingine dying under load.
as long as u let the enigne warm up u shouldnt have a problem with the eingine dying under load.
#4
I didn't have any trouble in cold weather after taking mine off. If you are going to run w/o one, you might as well remove the flapper assembly in the air cleaner. It's only an airflow obstruction.
#5
I read your email
Originally posted by 7less
I didn't have any trouble in cold weather after taking mine off. If you are going to run w/o one, you might as well remove the flapper assembly in the air cleaner. It's only an airflow obstruction.
I didn't have any trouble in cold weather after taking mine off. If you are going to run w/o one, you might as well remove the flapper assembly in the air cleaner. It's only an airflow obstruction.
#6
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I noticed that rattling too. I never really opened it up to inspect, but it sounds like my "flapper assembly" is what rattles like no tomorrow too.
What is it for? And how do I remove it?
What is it for? And how do I remove it?
#7
I read your email
Originally posted by xxxHondaGuyxxx
I noticed that rattling too. I never really opened it up to inspect, but it sounds like my "flapper assembly" is what rattles like no tomorrow too.
What is it for? And how do I remove it?
I noticed that rattling too. I never really opened it up to inspect, but it sounds like my "flapper assembly" is what rattles like no tomorrow too.
What is it for? And how do I remove it?
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#8
That is the carburetor preheater hose. It keeps the carb from icing up in cold/wet weather. It's actually a good thing to have for driving in cold weather. I doubt that it's presence causes any appreciable restriction of the intake air, personally. But I do know about the rattling being annoying, fortunately the flapper on my RX7 doesn't rattle like the one on my Courier.