NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   3rd Generation Specific (https://www.nopistons.com/3rd-generation-specific-18/)
-   -   Vacuum Leak (https://www.nopistons.com/3rd-generation-specific-18/vacuum-leak-64446/)

outlaw9992003 02-26-2007 06:03 PM

I hava 13B rotary ina 3rd gen, single turbo conversion, street ported, brand new rebuild. Also with block off kit installed. I was lookin for some advice as to finding the vacuum leak. It will start the warm up sequence and idle at like 2k or w/e and hold there, but once it warms up and drops like its suppose to, then the idle goes up and down. Between like 1k and 2k. Sometimes it doesnt fluctuate that much. But anyways any help is appreciated.

FikseRxSeven 02-27-2007 10:37 AM

you can try to spray brake cleaner or carb cleaner on parts of the motor that you suspect to have the leak and if there is a leak, the car will stumble a little bit.



make sure all of the manifold bolts and accessories attatched to the manifold are bolted tight

herblenny 02-27-2007 04:04 PM


Originally Posted by outlaw9992003' post='861267' date='Feb 26 2007, 04:03 PM

I hava 13B rotary ina 3rd gen, single turbo conversion, street ported, brand new rebuild. Also with block off kit installed. I was lookin for some advice as to finding the vacuum leak. It will start the warm up sequence and idle at like 2k or w/e and hold there, but once it warms up and drops like its suppose to, then the idle goes up and down. Between like 1k and 2k. Sometimes it doesnt fluctuate that much. But anyways any help is appreciated.



Are you sure its the vac leak? I say its something else..

outlaw9992003 02-27-2007 09:41 PM


Originally Posted by herblenny' post='861410' date='Feb 27 2007, 05:04 PM

Are you sure its the vac leak? I say its something else..



If you say its something else, then why dont you provide a suggestion plz ?


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