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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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The cap only goes on one way. Marking it won't help prevent getting it crooked, but making sure it is seated properly will. If you can get both clips on, then it's not crooked

Changing to electronic ignition won't help starting or power compared to a properly adjusted points ignition. So start by making sure it is properly adjusted (both initial timing, and using correct points gap). The gap wears during normal use, so it must be adjusted every so often and points replaced

Posted on: 2016/7/12 1:59
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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Hi RockOn, im sure it not the clutch set up, because all the issues i was having with it in that respect are gone, dont get me wrong, it was a major headache and i was certain that it was limiting the engine some how but its not.. at least now it shifts smooth as silk haha

i did free rev it all the way out once but the problem sort of comes and goes, especially if i leave it in gear from low rpm and drive it through the rev range (worst in 3rd)

cheers ddgonzal, ill have a check of the dizzy when i get some time and daylight, is it worth marking the outside of the cap to the body so i don't put it back on crooked?

once ive got all this fixed i think im going to look into upgrading the whole ignition system, ive heard putting the work into the spark side helps a lot on dead cold starts also

Posted on: 2016/7/12 1:29
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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The check for that is easy: use pinky finger to push on clutch pedal. Normal play in the pedal is 1", less than 5mm is also a problem

The clutch pressure plate & disc are the same 56 and 60 series, however the flywheel & throwout bearing sleeve combos differ. The wrong combo can prevent engagement or it can prevent disenagagement. See Release Bearing Combos
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Posted on: 2016/7/11 20:08
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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Not sure if this would result in your symptoms, but I just had a 60a 5-speed installed behind my a12 in my ute - We needed to use a combination of the different clutch, flywheel and throw out bearing from the a14 and the a12. (Luckily I have an a14 ready to go in soon) The gap between them was too great for the clutch to disengage fully using the a12 flywheel/clutch combo, and then needed the shorter bearing carrier - maybe your clutch isn't engaging properly?
Especially since you said you can free-rev it easily??

Posted on: 2016/7/11 15:10
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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I wouldn't pull the distributor apart.

Rallytwit said:
Quote:
pop the cap on the dizzy and see if the shaft has a lot of play in it
Yes, remove the distributor cap and look. Wiggle the shaft (the rotor) back and forth -- it should have NO play in it. If you rotate it back and forth, it will have some play normally. And if you pull it up and push it down it may have a little play


Quote:
falls on its face at that 4500rpm mark
Too much advance can cause that. Check the spark timing to see if it is set to 5-7 degrees BTDC
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see Ignition Timing

Posted on: 2016/7/11 9:22
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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ok so got my ute back from the clutch shop (spigot bearing had destroyed itself) the car is driving a bit better but still falls on its face at that 4500rpm mark, im going to have a look at the dizzy as rallytwit said.. what exactly should i be looking for? how much is too much shaft slop?

is it easier to replace the dizzy or the parts? (sorry never had to pull one apart before)

Posted on: 2016/7/11 2:30
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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im going to drop it down to the clutch shop this arvo, ill post what was wrong with it when i get it back, taking bets on it was something stupid that i did haha

ahh that feeling when you put your car back together and its worse than before

Posted on: 2016/6/30 1:55
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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we had a lot of trouble getting the gearbox in, we ended up having to pull it in with the bolts as it wasnt sliding the whole way on.. the guy at the clutch shop later told me i should have just left it because forcing it on is just bad news.

so just today.. i cant keep it running when i pull up, when i press the clutch in there is a crazy whering noise that sounds like a bearing, as i go to take off it runs like a dog then when cruising at 60 in 4th (5speed 60a box) its like shakes the whole car at the end of each cycle of the motor if that makes sense

Posted on: 2016/6/30 1:26
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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Alignment tool is only for the clutch disc, it doesn't align the gearbox, say if the engine went up the to gearbox face it is aligned no problem. The gearbox is straight when the bolts holding it to the engine are tight

what are the symptoms you are experiencing?

Posted on: 2016/6/30 1:16
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Re: A15 twin weber electric dizy valve bouncing at 4500rpm??
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OK so i think i know what it is, i changed the clutch not long ago (the clutch shop didn't have an alignment tool so i did the best i could in the dirt) and we had a bit of a hard time putting the gearbox back in, i have a feeling that the gearbox isn't perfectly square to the motor, I'm not sure why it only happens above 4500 rpm but i did the out of gear clutch out rev and it revved to 7 grand no worries.

plus there is a heap of new symptoms today that are giving me the #OOPS#s that also point to the gearbox not being straight and the clutch needs to be looked at again

Posted on: 2016/6/30 0:39
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