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-   -   FDisaster... starting/running/misfire/dying issues (https://www.rx7club.com/new-member-rx-7-technical-256/fdisaster-starting-running-misfire-dying-issues-1037007/)

joelanger 06-02-13 04:03 PM

FDisaster... starting/running/misfire/dying issues
 
gave my idle control valve a clean today as it was causing a buzzing noise. I sorted that and car ran best it has done for a long time, thought great I'll go for a bit of a drive! there's a dirt track to our house about a mile long so have to go slow, just had in in 'D' with no gas and all of a sudden car dies...

Tried to start again and it goes grumble...........grumble........grumble.... - I go right its flooded! I pull the fuel pump fuse turn key and it starts and then dies as you would expect (now I've done this a few times before and its worked straight away - have got all the bits to do a fuel cut switch but not got round to it yet) replace fuse and the same thing happens - no start!

tried this 10+ times with no luck, did start once got 100 yards and died again

another thing it did - I kept cranking and had foot on the throttle slightly the revs stayed at about 500 and I opened the throttle up more and the revs built up let go of the key and the revs stayed up but as soon as I let go of the throttle it died again, and the engine sounded very loud and not right at all, my dad heard it and said it might be misfiring?

that buzzing came back at one point aswell - when the engine was flooding - I assumed that this is the idle control valve get clogged up with shit again

my FD is definately not running right there just loads of oily shit inside (I had the intake elbow off today and all this shit was seeping out of the butterfly valves - this is after about 3 weeks of clean running, no tough starts, no engine dying on me, no flooding) and I think its just dumping too much fuel in and causing it to flood a lot

now my questions are:
why does it just cut out when going slow (its done this a few times before) is it the (auto) gearbox?
what would cause a misfire?
why is my FD secreting oil and shit all over the place?
what could cause running too rich?

so rant over any help appreciated

savicious 06-03-13 04:16 PM

Yup sounds like you got an RX7 there. Sorry I can't be more helpful.

RotaryEvolution 06-03-13 05:15 PM

unfortunately i would say start with a compression test. automatic FDs tend to build up ungodly amounts of carbon that kills them prematurely and it was probably just coincidental that you worked on it before this.


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