lid0n
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| posted on 23/8/07 at 08:08 PM |
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pinto engine timing?/starting problems
ok i cant get my pinto to start spec is twin 40s, kent fr34 cam kit and vernier. i have spark, the fuel pressure is set to 3.5-4psi, the carbs are
filling up ok but fuel doesnt seem to be getting through as plugs are bone dry, im guessing that my timing is out? do the pictures look right? any
help appreciated...
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mookaloid
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| posted on 23/8/07 at 08:20 PM |
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The Haynes manual gives a pretty good guide on getting the timing right I would give it about 12-15 deg of static advance to start with on the
ignition. Is the rotor arm pointing at the mark on the rim of the dizzy?
Also you need to thoroughly check the cam timing to make sure you have followed the set up correctly and got it right.
Cheers
Mark
"That thing you're thinking - it wont be that."
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cadebytiger
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| posted on 23/8/07 at 08:29 PM |
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i cannot tell from the pics but a common mistake is to have the dizzy 180 degrees out.
BUT! - if you are getting no pops or bangs and the plugs are dry it would indicate that no fuel is getting into the chamber at all.
Are you sure that fuel is coming out of the idle jets? - if it is then where is it going?
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rusty nuts
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| posted on 23/8/07 at 08:49 PM |
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Try a little squirt of brake cleaner into the carb inlets when cranking. If it doesn't fire then timing is likely to be out .
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flange nut
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| posted on 23/8/07 at 08:58 PM |
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Why do you think the timing is out because the plugs are dry? It does seem that the fuel isn't getting into cylinder. I assume you've
checked that there is a spark at the plugs. You could try squirting some petrol or another inflamable liquid down the carbs intakes to see if the
engine fires.
Geoff
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nick205
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| posted on 24/8/07 at 07:59 AM |
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Spray Easy Start in the carb inkates then crank it over, it will fire momentarily if you have the timing and sparks roughly right.
Are the carbs known to be working correctly - I'd remove the jets and check nothings blocked.
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rusty nuts
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| posted on 24/8/07 at 05:48 PM |
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I'm told that the AA and the Rac no longer use easistart due to damage , they now use brake cleaner that isn't so volatile but will still
start reluctant engines.
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saigonij
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| posted on 24/8/07 at 05:55 PM |
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at TDC, shouldnt the cam 0 degs be at the top of the engine, not the bottom?
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rusty nuts
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| posted on 24/8/07 at 06:20 PM |
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The cam is set so that number one piston should be at TDC
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lid0n
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| posted on 25/8/07 at 08:43 AM |
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thanks for the replys, i will check that jets are not blocked and try some brake cleaner in the intakes
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lid0n
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| posted on 1/9/07 at 07:28 AM |
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engine is now running thanks to the brake cleaner, seems to be getting very hot quickly would this be because the carbs have not been set up?
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Macbeast
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| posted on 1/9/07 at 07:39 AM |
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Hot ?
Could be because mixture is too lean and/or because ignition timing too far retarded.
But you would want to check these anyway. Good luck.
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