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-   -   Sub Zero Starting (https://www.rx7club.com/general-rotary-tech-support-11/sub-zero-starting-637606/)

{fc}DriftingCanadian13b 03-30-07 09:47 AM

Sub Zero Starting
 
Don't flame me if this has been covered because I did do a search as well as look through the FAQS. I have an 88 n/a IT flooded to the point that I wasn't getting comprestion spent the day unflooding it, I was so so freaked out that I didn't put enough ATF in that I was going to break the apex seals, anyways after new plugs it started up. How do I rip tha MFing sub zero system out so it never happends again?

dreadseb 03-30-07 08:30 PM

Just remove the bottle and its various hoses, then cap all the nipples that you removed hoses from and either cap off or complete remove the sub zero pump/injector dealy and replace it with a block off plate.

trochoid 04-01-07 01:13 AM

What makes you think the sub-zero system was the cause of the flooding? Many of them no longer work and the amount of fluid injected is small. I have never heard of it causing a flooding problem. Fwiw, Mazda did have a tsb advising removal of the system, but it was emissions related.

{fc}DriftingCanadian13b 04-01-07 11:11 AM

Really, from the people I have talked it seems to be the most common culprit of flooding. It throws non combustibles into the combustion chamber, so if your having a hard time sparking it makes it that much harder.

Rocking Rotary 04-01-07 02:59 PM

I as well have never seen it flood a engine. When you try to start them on a cold day hold the throtle open so it can get as much air as possible since its so thin when its cold.

To remove it all you have to do is unplug the pump and cap the line to the uim.

trochoid 04-02-07 04:33 PM


Originally Posted by {fc}DriftingCanadian13b
Really, from the people I have talked it seems to be the most common culprit of flooding. It throws non combustibles into the combustion chamber, so if your having a hard time sparking it makes it that much harder.

Then you have either been talking to the wrong people or people who don't know rotays very well. The most common cause of FI rotary flooding is leaking injectors. Second most common cause is shutting the engine off before it's fully warmed up, and that is usually caused by the #1 cause also.

TougeLabs 04-09-07 10:36 PM

i just picked up a 88 vert and im also having a problem with cold starts i ws under the impression i had a leaky injector but at the same time if i let the car sit for a long period like 4 days the car starts right up and giant bellows of smoke follow lol any help would be great or a turbo swap

Rocking Rotary 04-10-07 08:46 AM


Originally Posted by TougeLabs
i just picked up a 88 vert and im also having a problem with cold starts i ws under the impression i had a leaky injector but at the same time if i let the car sit for a long period like 4 days the car starts right up and giant bellows of smoke follow lol any help would be great or a turbo swap


Do a compression check to see if your engine is still good. The smoke is not a good sign. Also if you cann't fix your NA engine you problly shouldn't attmept a turbo swap.


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