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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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WTF is wrong with my *$#@#% motor????
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Sat, 25 September 2004 11:17
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ok, i'll start from the start.
i havnt been able to get my TA22 (2T) going for a while, mabe 3 months its been sitting in the garage.
now that ive been spending time trying to get it going, ive traced a whole bunch of faults, including a dodgy main earth (fixed), non-functioning fuel cut solenoid (fixed), a few dodgy wires etc (fixed), given it new points (set properly), new fuel, new coil, new rotor button, spark plugs etc etc. after all this i had a spark, not a very good one, but plenty to light the mix with.
a couple of days ago, i checked the timing and it was advanced to the shithouse, due to a loose dizzy that had moved its self out of time by about 20 degrees. i brought it back round to the factory timing, but it still wouldnt start. wound it to about 20 degrees retarded to see what would happen and it kicked for long enough for me to put the timing back to the right spot, where it burst into life and was running better than ever. took it for a spin, set up the advance etc, came home and turned it off. found that it wouldnt start with this timing (factory specs) then found the carbie wasnt priming its self (no power to fuel cut solenoid, fixed that) still wouldnt start, but still kicks over and runs, albiet very poorly when retarded by about 20 degrees (back fires out the carb, wont rev past ~two hundred rpm) still runs fine when set back to proper timing, but still wont start there. since then my spark has disapeared, but reapears intermittantly, but it still wont run, even with spark.
my auto choke also isnt working, but open or closed theres no signs of life.
im out if ideas. please help me...
Jim.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: WTF is wrong with my *$#@#% motor????
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Sat, 25 September 2004 13:04
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That's what life's like with points and carbs  Sounds like somethings pretty loose in your dizzy, and your carb may not be entirely healthy, either..
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Location:
South Australia
Registered:
July 2002
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Re: WTF is wrong with my *$#@#% motor????
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Sat, 25 September 2004 14:46
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Get a 2TGEU 
Getting a car started is sort of the hard part of having carb + points.
btw - how can your dizzy be loose?
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Location:
South Australia
Registered:
July 2002
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Re: WTF is wrong with my *$#@#% motor????
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Sat, 25 September 2004 14:49
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Check the resistance in your ignition leads btw - I noticed you didn't mention that - but you might've done that anyway.
Also what gap sparkies you running? Have you pulled them out to check what kind of mixture you are getting when it is running? lean/hot/cold/rich/oily/whatevery.
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Location:
Sydney
Registered:
June 2004
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Re: WTF is wrong with my *$#@#% motor????
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Sun, 26 September 2004 00:29
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if your getting sprark and then not could be coil issue, i knw you said you replaced it but could be wiring to coil, resistor for coil, alternator feed to coil.
if you were in syd i would have been nmore than happy to come past but alas 
actually you say that it starts at 20deg right? you sure your dizzy aint 180deg out???????
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Location:
townsville NQLD
Registered:
February 2004
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Re: WTF is wrong with my *$#@#% motor????
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Sun, 26 September 2004 01:51
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three main things with a engine
1. fuel
2. spark
3. compression
if you have those 3 things then it should at least fire.
first you check the compression. take the spark plugs out and put ure finger over the hole and crank the engine over. if the motor has good comp. then it will blow ure finger off. sounds like ure engine has it thou
secondly, spark. check points gap and cleanliness. try rewiring the dizzy an coil with seperate wires (temporarily)
this is a diagram i drew on autoCAD, basic but still good 
then u have to check its gettin fuel. try just squirtin some down the carby. if it runs 4 a bit then stops, then u would expect that it used up the stuff u put in and didnt get any from the carby. and a way to check if its gettin to much, is if it makes the spark plug really wet. maybe need to clean the carby.
with these things it should start or at least fire.
good luck anyway
brett
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: WTF is wrong with my *$#@#% motor????
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Sun, 26 September 2004 03:56
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thanks guys,
ive pretty much tryed all this stuff already.
-the mixture was rich and the plugs were wet but i tuned that while it was running. i will check that again. if i back the fuel right off could it make it easier to start? at the moment when i pump the throttle, i get a good healthy squirt of fuel.
-i dont see how the dizzy could be 180 out, cos when i put it back to about 10 or 15 BTDC it ran fine. just wouldnt start with it there.
-when i say the dizzy was loose i mean the bolt that secures it to the block wasnt tight enough and the whole thing had rotated because i'd been cranking the motor over while it was loose.
-i tryed pouring fuel down the carbie, nothing happened.
-the points have been cleaned and set to 16 thou.
what should the resistance be in the HT leads? this is the only thing i havnt checked, but still doesnt explain everything if it was wrong because it has been running fine once started.
thanks again.
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Location:
Brisbane
Registered:
June 2004
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Re: WTF is wrong with my *$#@#% motor????
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Sun, 26 September 2004 06:04
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I don't know if this will make any difference but set the air gap in the dizzy to 8thou instead of 16thou. anything from 8 to 16 should be fine according to the book but maybe the higher end of it doesn't work. I had this problem with my 2T so because the gap wasnt correct. Once fixed she was sweet.
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: WTF is wrong with my *$#@#% motor????
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Sun, 26 September 2004 07:14
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thanks mate, i'll give that a shot. gotta buy some verniers tho ($50  )
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Location:
Melbourne
Registered:
August 2003
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Re: WTF is wrong with my *$#@#% motor????
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Sun, 26 September 2004 13:48
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Mine cost $10.
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: WTF is wrong with my *$#@#% motor????
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Mon, 27 September 2004 11:48
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so did mine 
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Location:
Melbourne
Registered:
August 2003
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Re: WTF is wrong with my *$#@#% motor????
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Mon, 27 September 2004 12:11
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Location:
On your mum!
Registered:
May 2002
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Re: WTF is wrong with my *$#@#% motor????
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Mon, 27 September 2004 12:50
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I've never seen points set with verniers - I will place that on my list of things to see
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Location:
Melbourne
Registered:
August 2003
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Re: WTF is wrong with my *$#@#% motor????
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Mon, 27 September 2004 12:58
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I hope he meant feeler guages.
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: WTF is wrong with my *$#@#% motor????
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Tue, 28 September 2004 08:39
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rest assured, i meant feeler guages. setting an air gap to 8 thou would be an achievement with calipers. still havnt tryed that gap yet, will do tomorrow. sounds like theres a guy with similar problems to me with his carbied 2TGEU in a new thread. whats going on here? must be contagious.
peace
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Club President
I supported Toymods
Location:
Sydney
Registered:
May 2002
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 Re: WTF is wrong with my *$#@#% motor????
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Tue, 28 September 2004 23:24
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Stick to the basics Dude,
Fuel and Spark really are all there is. If you have been trying to start it for anything more than 5 minutes or so, Chances are your plugs are now fouled and it won't fire !
De-foul them or chuck some new ones in and see how you go. It is probably that simple
Just check your timing again before you do ! Wind the engine over by Hand, allinge the timing mark at around 12 degrees BTDC and check your points gap and rotor positioning. I know you have prolly done it half a dozen times already but it pays to check it again.
Hope that helps,
Rod.
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