Setting timing

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Tozzy
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Setting timing

Post by Tozzy » Sat Jun 26, 2010 8:36 pm

I have a 1989 Subaru Brumby EA81 electronic dizzy. Took out distributor and did not mark rotor position (silly me). I have set flywheel to top dead centre and located dizzy rotor on number 1 plug lead. Won't start. I remove dizzy cap and check flywheel to TDC and notice the rotor is now 180 degrees opposite to what I set before.

What is happening? Any advice is greatly appreciated.

Regards,

Tozzy

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coxy
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Post by coxy » Sat Jun 26, 2010 9:08 pm

Pull no 1 sparkplug out and make sure it is top dead centre on the right cylinder,you are at TDC but on the wrong cylinder 180 degrees out.
You could just try pulling the dissy and rotating the rotor button 180 degrees as well.
The most accurate way is to pull the rocker cover of no 1 bank and watch the inlet valve open and close as the correct tdc will follow about 60 degrees after the inlet valve shuts.

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steptoe
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Post by steptoe » Sun Jun 27, 2010 3:35 am

should also be marks on removed dizzy with a dimple on drive cog. align these when installing. I have forgotten with EA81 but possible that the fly not meant to be on TDC but on the timing of 8 DBTDC whe you drop dizzy in on no 1 cyl, as was case with old Mazda donks

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Matt
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Post by Matt » Sun Jun 27, 2010 7:44 am

I agree with Steptoe, just line it up roughly with number 1 piston at TDC. Also pull the plug and make sure number on is at TDC, by putting something down the hole, ie screwdriver.
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TOONGA
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Post by TOONGA » Sun Jun 27, 2010 11:34 am

remeber that your dizzy is on a corkscew cog so when you put the dizzy back in and it contacts the drive gear on the big end it will move as it goes into place so even if you are at top dead centre the rotor moves forward and the timing will be out.

so when you put the dizzy back in the rotor must be turned back from where it is meant to be when it is finally seated

TOONGA
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steptoe
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Post by steptoe » Sun Jun 27, 2010 1:07 pm

I am glad i not the only one that has some problem typing the word remeber, doin' it all the time and going back to frist look at it, think about a minute then slot the extra m in its rightful placew:)

here it is this time >> m

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TOONGA
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Post by TOONGA » Sun Jun 27, 2010 2:07 pm

Hijack thread ...
steptoe wrote:I am glad i not the only one that has some problem typing the word remeber, doin' it all the time and going back to frist look at it, think about a minute then slot the extra m in its rightful placew:)

here it is this time >> m
nice... was it hard to make all those typo's?

I'm sending my children to live with you.

that way i won't have to type while my kids try to kill each other over lego

unhijack thread....

TOONGA
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steptoe
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Post by steptoe » Sun Jun 27, 2010 10:17 pm

:) , considering your situation you are doing very well

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Tozzy
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Post by Tozzy » Sun Jun 27, 2010 10:21 pm

Thanks for the info. Will try again this week sometime when I am more relaxed!

Been putting dizzy in everthing except the bin...............ha, ha.....

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