bracey
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| posted on 24/8/08 at 07:06 AM |
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xe r1 carbs wont fire on all four
finally got it all together and now having trouble getting it to fire on all four!
it has new plugs,leads,rotor arm and dizzy cap but will only seem to run on 1 cylinder ??
when running i can cover 3 trumpets to no diff and only one stall the engine
pretty certain leads etc are right
only one header on exhaust gets warm
did notice spark from kinglead seems slow (not as many as quick )if this makes sence ??
any help as to what to check next greatly needed
cheers
richard
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ReMan
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| posted on 24/8/08 at 07:31 AM |
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You need to be 100% certain that the leads are right! Check firing order again!
Take the non firing plugs out and check if they are sparking.
If they are I would try sqirting some easy start or petrol into the carb mouth to see if it fires, if it does then you may need to check that the
float needle valve has not stuck shut.......
It will be going by lunch 
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bracey
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| posted on 24/8/08 at 08:59 AM |
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any one have any links to info about r1 carbs ???
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bracey
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| posted on 24/8/08 at 12:03 PM |
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did notice spark from kinglead seems slow (not as many as quick )if this makes sence ??
any help as to what to check next greatly needed
cheers
richard
had more of a look and only getting one spark per rev of dizzy i would assume i should get four?????
ideas???
cheers
richard
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bracey
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| posted on 25/8/08 at 07:45 AM |
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help please
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ReMan
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| posted on 25/8/08 at 10:10 AM |
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Are the points opening 4 times per rev or is the distributor shaft bent off centre or the points gap very small?
Is it the correctrotor arm/ cap, check the gap between the arm and contact.
Lay all 4 plugs on the head at once and see if / which spark.
Are the plugs wet?
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02GF74
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| posted on 25/8/08 at 12:13 PM |
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quote:
Originally posted by bracey
finally got it all together and now having trouble getting it to fire on all four!
it has new plugs,leads,rotor arm and dizzy cap but will only seem to run on 1 cylinder ??
only one header on exhaust gets warm
that clearly shows only one cylinder is getting spark and fuel. whcih cylinder is it?
had more of a look and only getting one spark per rev of dizzy i would assume i should get four?????
correct, the rotor arm goes past all 4 contacts in the cap to supply all 4 cylinders.
let's back pedal a bit - xe is vauxhall 16 engine? it has distributor but electronic igniton and a single coil?
you are looking at spart at the lead that goes into the centre of the cap (king lead)? in 2 engine revolution you would get 2 sparks.
if you look at one of the plug leads , you would see 1 spark every 2 revs.
how is the spart triggered? is done insdie the distrributor?
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bracey
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| posted on 25/8/08 at 06:03 PM |
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i think i have sussed it
having thought logically about this i assumed something should trigger each spark,
in my case with no ecu it must be the hall sensor,and on further investigation it seems as if the dizzy only has 1 cut out for this sensor on the
metal ring inside as opposed to 4
hense one spark per revolution
so it seems i need a different dizzy ,cavalier i think????
so ,the dizzy i have must just send a signal to an ecu???
what are people using when no ecu ?
cheers
richard
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NS Dev
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| posted on 25/8/08 at 09:28 PM |
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LOL!!
The std XE dizzy has just a cam phase sensor used just to facilitate the sequential injection, in fact the motronic ecu defaults to gang firing the
injectors if the hall sensor in the dizzy fails.
On the later dizzyless ones the cam sensor is still there, just in its own casing not inside the dizzy. It was just a convenient place to put it on
the earlier ones.
What you need is a cavalier 1.6 dizzy, about £40 new on ebay.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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NS Dev
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| posted on 25/8/08 at 09:30 PM |
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one of these is what you need:
cavvy dizzy on ebay linky
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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