Vacuum lines, Where to start?
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Vacuum lines, Where to start?
I have a 93 FD with a JDM tt motor swap and no other addtional mods. Car has a High idle and bouncing between 1100 rpm-1500 rpm constantly (Very annoying). I want to get it at 750 rpm as a idle. If I push down the clutch and put it in gear the rpm will drop to 1000rpm and stays constant without bouncing rpms. I assume its one of the many Vac lines. Where do I start? The engine did come with aftermarket silicone blue hoses. Please note I am in the RX7 scene for two months and I am learning by the day. I have posted in the past and some of those jargons confuses me. Please make it simple as possible for me so I can understand and if you have pictures diagrams please post them or email me them. Thanks so much!!
Last edited by 2fast4u_rx7; 07-04-07 at 01:51 AM.
#2
fadedvr=pink
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http://www.autosportracetech.com/RX-7/vacuum.jpg
also try spraying carb cleaner over the vacuum hoses (not too much) whenever the idle lowers thats, that will be the area there is a leak.
if you cant do that just have a professional do it. dont mess up your fd
also try spraying carb cleaner over the vacuum hoses (not too much) whenever the idle lowers thats, that will be the area there is a leak.
if you cant do that just have a professional do it. dont mess up your fd
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http://www.autosportracetech.com/RX-7/vacuum.jpg
also try spraying carb cleaner over the vacuum hoses (not too much) whenever the idle lowers thats, that will be the area there is a leak.
if you cant do that just have a professional do it. dont mess up your fd
also try spraying carb cleaner over the vacuum hoses (not too much) whenever the idle lowers thats, that will be the area there is a leak.
if you cant do that just have a professional do it. dont mess up your fd
#4
Form follows function
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Start with the hose material.
There is a popular misconception that silicone hose is a good choice. That is not always true--note that silicone based hose does not hold up well when exposed oil and many VOC's. It gets soft and falls apart on its own--unlike the stockers, which harden and often break when disturbed.
A better choice (and best bang for the buck) is line made of Buna-N (nitrile) rubber. Some prefer Viton, and it does the job, but it is much more expensive and is overkill for the application.
There is a popular misconception that silicone hose is a good choice. That is not always true--note that silicone based hose does not hold up well when exposed oil and many VOC's. It gets soft and falls apart on its own--unlike the stockers, which harden and often break when disturbed.
A better choice (and best bang for the buck) is line made of Buna-N (nitrile) rubber. Some prefer Viton, and it does the job, but it is much more expensive and is overkill for the application.
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