BUGA Community
Technical => Driveline => Topic started by: GusB on June 26, 2010, 08:44:12 PM
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hey folks! i was hoping someone could help with advice on whats happened (i have not much idea with mechanics)
rotor seems stuck on the wrong cylinder position , heres what went down;
engine was running like a dream (except carby which is running average and the fan belt which is a little loose) until the other day when i took off the rocker covers for a respray, put them back on and fired the engine to check the gasket wasnt leaking any oil, when idling away it slowly started sounded terrible like the timing was way off, backfired a fair bit and wanted to stall hard. went to start it again and sounded worse still, now it doesnt start at all, .
so ive checked the plug leads are all on and two were not properly attatched to the distributor cap, so i clicked them in all the way.also took the cap off and noticed the distributor has a fair bit of movement (about 1/2 cm in all directions) is this bad. ? im 100 percent sure the firing order is spot on (taken from holdenpaedia). also the rotor is stuck on cylinder 4 (which is 180 degrees the wrong way) and cant get it back to the number 1 cylinder start position. how do i get it back around, feels like its going to break, i can take it off and back on ok, but stuck in the wrong spot. any ideas,do i move the fan around and hope the rotor moves or something? im 99 percent sure the rocker covers went on off smooth enough and that nothing foreign went in there.
also i put new spark plugs and leads and rotor ona few months back (except didnt change rotor cap which could be pretty old, there was some white residue on the inside in there a while back which i rubbed back with wetndry paper)
(http://i724.photobucket.com/albums/ww244/GusB_2009/stuck-Copy.jpg) (http://i724.photobucket.com/albums/ww244/GusB_2009/in-Copy.jpg)
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Hey Gus im wondering whether there is something amiss on the dizzy shaft itself? Have you taken the whole dizzy out and inspected it?
Just an idea... :-\ :-\
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Hi GusB,
Few things to try, First- Put pressure on you're fan belt & turn you're fan, This should turn you're rotor.
If not take you're dizzy out, There's a spline/cog on the bottom, check to see if it's fixed & no play,
if thats ok make sure the shaft turns freely. Failing that I have no idea without having a look, Sorry.
When you take the dizzy out get a pencil and make a mark so you put it back the same way.
Hope you're on the road soon.
Cheers
Hangten
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If it was running good before it sounds like it's stripped the gear on the bottom of the disi shaft Youl have to pull the disi out to see if the gear is stripped
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ok thanks hangten and co, havent tried that yet, or the dizzy out either. it will take a few days to get back to reply, thanks! over &out
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looking at the picks it looks like you are 180 degrees out ,try turning the motor over one full rev by hand and that should put you at tdc #1 .The movement in the rotor shaft is normal but it should feel springy (its your mechanical advance mechanism ) if it dose'nt feel springy then it needs attention .I suspect you might have your lead firing order out of whack .(the leads were the only thing you removed before the rocker covers yeah???) hope that helps Cheers Neil
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ps DONT ask Craig for the firing order....... :-X :-*
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re check your firing order
your rotor looks to be on no1 but your leads don't appear to be in the right order
http://holdenpaedia.oldholden.com/Firing_order_Holden_V8_and_6#Holden_V8_Firing_Order: (http://holdenpaedia.oldholden.com/Firing_order_Holden_V8_and_6#Holden_V8_Firing_Order:)
http://www.google.com.au/imgres?imgurl=http://www.offroaders.com/tech/images/Chevrolet-V8_Firing-Order.jpg&imgrefurl=http://www.offroaders.com/tech/V8-engine-firing-order.htm&h=382&w=311&sz=26&tbnid=G_Yv2OPDGdPPPM:&tbnh=123&tbnw=100&prev=/images%3Fq%3Dchevy%2Bfiring%2Border&hl=en&usg=__snDu4b_WYvjDjOn5I2EsOMALfVI=&sa=X&ei=Wm8mTIL2A9yPcMCYtdoC&ved=0CC0Q9QEwBA (http://www.google.com.au/imgres?imgurl=http://www.offroaders.com/tech/images/Chevrolet-V8_Firing-Order.jpg&imgrefurl=http://www.offroaders.com/tech/V8-engine-firing-order.htm&h=382&w=311&sz=26&tbnid=G_Yv2OPDGdPPPM:&tbnh=123&tbnw=100&prev=/images%3Fq%3Dchevy%2Bfiring%2Border&hl=en&usg=__snDu4b_WYvjDjOn5I2EsOMALfVI=&sa=X&ei=Wm8mTIL2A9yPcMCYtdoC&ved=0CC0Q9QEwBA)
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If you have stripped the dizzy drive gear you can buy two types
1: Fibre style as per factory or
2:Aftermarket metal one
spend the extra and buy the metal one and you shouldn't have to worry again
Regards
Petrolhead
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fuel?
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Hey hotrod thats not a nice thing to call him ;D by the way its spelt "fool" !! ;D ;D :D :D
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hehe i got fuel. still cant get it to start, rotor is ok i think i was going down the wrong path there, when i try to start her she wont fire, instead i get fumes coming out of one of the rocker cover breather hole, lots of fumes as it tries to start. exaust fumes that fill the cabin after a few attempts. is that a valve or something? i have no idea. what could this mean? i think im losing it
firing order is matched to the holdenpaedia site - the hei distributor one (is that the right one, or should i be breaker point one?)
starter motor and fuel pump are good
getting fuel to carb
gone through a few batteries, it drains them pretty hard trying to start.
s.o.s to the bedford world 8)
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hey mate
did you turn the motor over with the dizzy cap off to ensure the rotor is turning? if not, take the dizzy cap off and hit the starter quickly to see if it turns.
Also, are you sure you put the rocker covers back on the right sides? i can see in one of the photos that you have some sort of PCV port on the back of the passenger side rocker cover, it may be causing you issues if it's not breathing properly. I wouldn't think this is your only problem tho.
Next, when you turn the motor over does it turn over freely as per usual, or does it feel overly lumpy? (not talking about the firing side of things, just the mechanical fluency of the pistons moving up and down in the cylinder)
If it is lumpy or very hesitant, have a look at your oil to ensure it's not milky or way over full. if its normally at the full mark on the dipstick and is now well over the full mark - but not milky - dont turn the motor over. Drain the water out of the sump before you try anything else.
I doubt you have water in the sump, but better to get the point across.
What did you do specifically? you removed the rocker covers, but did you unplug anything along the way? did you accidentally pull off a vacuum line?
what motor is it? you say that you've matched the firing order to the holdenapedia site, but are you sure thats for your motor? did you only check the 2 wires that had come off, or did you unplug and replug all of the plug wires?
check all the earths in close proximity to where you've been working, make sure none are frayed or removed
anyway that should be a few more things to cross off the list, if none of this works, take some detailed photos of the motor so we can see what's going on