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the last resort.... https://www.ausmini.com/forums/viewtopic.php?f=2&t=20656	Page 1 of 2

Author:	harvey69 [ Thu Jun 29, 2006 8:04 pm ]
Post subject:	the last resort....
ok..... i will be booking into a mechanics to sorce out the problem and to fix the problem but if i can avoid that..... it would be awesome.... im hopeing some people can help me out... or contribute ideas for me to check ok.... i have been getting this problem where i loose 75% of power when trying to accelerate as it misses and splutters. it happens randomly but since it started its only gotten worse.... and is now cant drive it.... i have recently installed - - new plugs - new leads - new coil ..... GT40r and has resistor - dizzy cap - dizzy rotor - points ( set correct) - cleaned out carbie ? im getting stuck for ideas..... will have to be put into mechanics if i cant fix it with help.. suggestions greatly accepted. thanks tait

Author:	poeee [ Thu Jun 29, 2006 8:07 pm ]
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Checked the valve clearances?

Author:	pristic [ Thu Jun 29, 2006 8:11 pm ]
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Have you emptied the fuel tank and re-filled? Mine did this but has stopped (actually I havnt driven it enough)... but mine was battery/electrical related I think... but as poeee says it could be. My mate adjusted my tappets about the time it stopped) ah... how NOT noisy she is now. Do you have the standard lucas fuse box? I have to replace mine because I had intermittent problems there. I found mine spluttered and coughed when the battery was completely dead. I was actually running out of spark (need more power - scotty) Also, does it happen in every gear or only 4th, doe sit happen only in high revs or any range. If you floor it does it happen or if you slooowly cruise up to a high rev range does it happen? Can you make it happen by hand (I mean, pop the hood, and use your hand to rev it)? Peter.

Author:	harvey69 [ Thu Jun 29, 2006 8:22 pm ]
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Quote: Have you emptied the fuel tank and re-filled? yer.... i thought it could be bad fuel so i have filled up at different spots with premium and still not worky. Quote: Do you have the standard lucas fuse box? yer..... i was thinkin of getting it re wired soon tho Quote: Also, does it happen in every gear or only 4th, doe sit happen only in high revs or any range. If you floor it does it happen or if you slooowly cruise up to a high rev range does it happen? every gear....every amount of revs..... even goin down hill trying to accelerate Quote: Can you make it happen by hand (I mean, pop the hood, and use your hand to rev it)? can rev it in neutral and seams fine...... will double check valve clearances in the morning...[/quote]

Author:	willy [ Thu Jun 29, 2006 8:35 pm ]
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Check your timing and dwell. And also fuel mixtures. Have you changed carby/exhaust recently? even air filter...

Author:	harvey69 [ Thu Jun 29, 2006 8:41 pm ]
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just had the timing done recently aswell as mixtures by a trusted mechanic..... carbie is the stock 1 - 1/4 in exhaust is stock pea shooter air filter is a ramflo but have had that for yonks with no prob?

Author:	willy [ Thu Jun 29, 2006 8:51 pm ]
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What have you changed recently? Octane rating of fuel?

Author:	pristic [ Thu Jun 29, 2006 8:52 pm ]
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hmnm... so its really only under load. I've heard that people get this if the fuel cant get there... ie/ starving for fuel. Hows the fuel pump lookin? How can someone check that its getting enough fuel? Doooooc where are yoooouuu?? Peter.

Author:	harvey69 [ Thu Jun 29, 2006 8:57 pm ]
Post subject:
Quote: What have you changed recently? Octane rating of fuel? i have just had the head rebuilt... could it be something with the head gasket? no racing fuel Quote: I've heard that people get this if the fuel cant get there... ie/ starving for fuel. Hows the fuel pump lookin? thats what we thought.... we have tested that fuel is being pumped and it is when we start it in neutral .... just not sure under load tho Quote: Doooooc where are yoooouuu?? the knowledgable one PS - i love this forum as everyone is willing to help each other out !

Author:	willy [ Thu Jun 29, 2006 8:58 pm ]
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Definitely could be a head gasket. Are you needing to keep topping the water up? Is your radiator pressurising? Check the caps - oil and water.

Author:	harvey69 [ Thu Jun 29, 2006 9:08 pm ]
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Quote: Are you needing to keep topping the water up? not sure.... just had to put a new fan in as i smashed the other one.... but it seemed to be fine before... the problem has had a few times where i go to drive it and it never happens..... but it hapens alot and is geting worse.... Quote: Check the caps - oil and water. cap as in rocker cap thingy.... i t hasnt been cleaned since the head gasket was gone before....so i cant tell.... Quote: Is your radiator pressurising? ???????? not sure what that means or how to check

Author:	sports850 [ Thu Jun 29, 2006 9:18 pm ]
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How about fuel filter being partially blocked ? New needle and seat in float bowl of carb perhaps , incorrect float level in float bowl (not keeping enough fuel in carb for under load conditions ??) , loose wire from ign to starter solenoid ? CLutching at straws here I'm afraid . How about the fuel tank itself , did you have it out when rebuilding the car , has it sat for any length of time outside the car without a cap (possible rust debris inside fouling fuel outlet ) , how about fuel lines , any looked squashed or perished ? Just as an idea do you have access to anything like a surge tank (litre tank with a line in and out , fuel pump fills it up and it keeps a ready supply of fuel near the carb under load rather than having to be drawn from the tank . Had to make one for a mates RX2 hill-climb car as when it launched the fuel pump had trouble keeping up with the motor ) so you can see if it's a fuel flow problem under load ?

Author:	pristic [ Thu Jun 29, 2006 9:23 pm ]
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Harvey, its because your avatar keeps changing Peter.

Author:	The Toolman [ Thu Jun 29, 2006 9:25 pm ]
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To me it sounds like something electrical, I recently has similar symptoms, which resulted in the car breaking down in the hills, the points turned out to be the culprit. I'd recheck the points gap and timing. Have you tried replacing the items you replaced with the old ones again and see if it fixes the problem? If you have only had this problem since then, it would suggest there is a fault with something you replaced.

Author:	min13k [ Thu Jun 29, 2006 9:30 pm ]
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ok so it revs freely when there is no load on the motor ....... not fuel i have had this exact prob simple soloution clean all the contacts on the fuse box clean all connections to the dissy and coil ...... what it is underload there is not enuff spark to keep it all happerning what makes spark coil distributor ..... how dose it get the spark voltage and ampage what happens when the terminals are all dirty ..... resistance ..... what happens when there is to much resistance ........ current will not flow ..... no flow of current no spark ...... try this very easy fix you may well be surprised .... when you get a chance go to super crap and get some of there 5 fuse blocks the replacement has two of them also just have a look at the gap on the points them shitty plastic buffers on the points melt and throw out ya timeing to buggery there should be a slight smear of grease on the bumpy bit makka

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