silvertop firing out intake

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silvertop firing out intake

Postby Burning Angel » Sat Dec 30, 2006 3:16 pm

have just reinstalled engine after removing to get rear engine mount welded back onto gearbox and now when i try to start it it just blows flames out the intake(quite impressive but not the intended result). it is running a lem g3 which was tuned the day the mount broke(unrelated to being dynoed)and was runnig awesum. any ideas? id say timing issue as there is obviously fuel but what seems odd is that the timing seems right with a timing light.
any help would be much apreciated
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Postby l1ttle_d3vil » Sat Dec 30, 2006 3:31 pm

yeah sounds like your timing would be out, may even be a faulty dizzy or cas (not sure what the 20v runs). i'd just check everything to do with the timing first though...
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Postby sergei » Sat Dec 30, 2006 4:19 pm

Make sure you have good grounding of the wire loom...
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Postby Adydas » Sat Dec 30, 2006 6:29 pm

your intake cam is still open when its firing, aka your cam timings out it happend to me once on my starlet engine, was funny as $&#$% as when i was cranking a mate was using his hand to open the throttle.

End result for him was no arm hairs.

Move your intake timing in one notch, your prolly a tooth out.
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Postby Infinite » Sat Dec 30, 2006 6:47 pm

got pix :P
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Postby Burning Angel » Sat Dec 30, 2006 7:45 pm

i dont think its any thing to do with the cam timing although you are right about the intake valves still being open when it fires. unless some1 broke into the garage and changed the intake cam timing while the engine was out

all i did was take the engine out take the gearbox off to get welded up and the put the engine back in.

the engine wont actually start. the link is using the 24 tooth wheel + sync
there is an option to set the offset for base timing but its set to 0 deg which i assume is right if im using a sync to mark 1st cylinder tdc

the link hasnt reset itself or anything stupid like that as the maps are all still there.

its also runnign msd sport compact ignition which i dont know much about
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Postby QikStarlie » Sat Dec 30, 2006 8:50 pm

just sounds like you have your spark plug leads around the wrong way to me.
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Postby big_boy » Sat Dec 30, 2006 8:56 pm

the valves wont be rong its spark in the rong place swap 1 with 3 & 2 with 4

try that
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Postby strap-on » Sun Dec 31, 2006 9:56 am

Infinite wrote:got pix :P


second that
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Postby Burning Angel » Sun Dec 31, 2006 4:06 pm

turns out the leads were round the complete wrong way.
this car had a wolf computer which had some f**ked up triggering system and had the leads on the wrong way and it worked! any way i didnt pay attention to this when pulling the engine out hence my problem.

didnt get any pics as it was hard to catch the flames. and the owner of the car wont let me do it again to get pics. it looked qite cool though
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