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Author Topic: Story so far series 1 resto  (Read 75232 times)
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will
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« Reply #615 on: 15 March, 2019, 06:50:52 PM »

I had a similar problem  I rebuild an engine and it would not start I swopped a flywheel
from another engine. The mistake I made was not to check the TDC of number one piston
was where the  0 was on the flywheel which it was not. It also possible to get the flywheel  in a number of positions
on the crankshaft. It's worth checking TDC with a dial gauge. 

 The best method of timing the engine on is on page 01/5 of the Appia workshop manual  Grin

 
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lancianut666
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Slow but rough


« Reply #616 on: 16 March, 2019, 12:31:37 PM »

Thanks Will the TDC is a problem I have put a pencil in No1 sparkplug hole with the plug out and turned the engine by hand and tried to gauge when the pencil stops moving up any more...I then used that as a TDC and reset the ignition timing with a meter across the points and it was well out so adjusted it and tried to start it and I thought it was going to go but no joy in the end. So will have another look on Monday...
Clarkey
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Fulvia Coupe S2 Flavia Coupe 1967 1.8 Kugelfischer Prisma 1.6 carb Y10 Fila Y10 Touring Dedra 1.8 Dedra 2.0 Turbo Appia S1
Richard Fridd
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« Reply #617 on: 16 March, 2019, 02:22:25 PM »

How about setting a few degrees before top dead centre?
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Richard Nevison Fridd
Jaydub
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« Reply #618 on: 16 March, 2019, 06:33:31 PM »

Unfortunately you are never going to get an accurate TDC without a dial gauge on top of the piston and a 360 degree protractor fixed to the crank pulley and a pointer fixed to the timing chain cover. However you can get a rough TDC with a pencil/ wooden dowel, but you have to come up to TDC, mark the pulley and cover, then go past TDC and come back up backwards, mark again and then average the 2 marks to get an approximate TDC.
You then get an approximation of the valve timing by viewing the pulley as a clock. From TDC ( With both valves rocking)turn in the direction of rotation,  and at about 18 minutes past, the inlet valve should be fully open. Carry on turning and the inlet valve should be closed around 38 minutes past.Carry on turning past TDC ( Now on firing stroke) and around 22 minutes past, the exhaust valve should start to open, continue up towards TDC and the exhaust starts to close around 7 minutes to. This only a rough guide but you should know if the valve timing is about correct or badly wrong. According to your photos of the spark plugs you have a compression/ suction problem because 2 of them don`t seem to be getting any fuel and that is not an ignition timing problem.
You need to do another compression test with a wide open throttle, fully charged battery and crank the engine the same number of turns on each cylinder. I find counting up to eight usually enough time to get a reading.
Sorry to preach to the converted.
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lancianut666
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« Reply #619 on: 17 March, 2019, 05:20:11 PM »

Thanks for the advice on the TDC problem will give it a go tomorrow...in the meantime I tried a carb change as the one on the  car is a chinese copy from ebay. I thought the car was going to start on Friday but the next time I tried not a chance the same again today. So back to basics was there a spark at the plugs? Actually there wasn't !!! check from the coil big fat sparks up my arm so took the dizzy cap off and where is the carbon brush? Hmmm I did remove a small spring out of the dizzy that I thought had fallen in we now know where from...
So we need another distributor cap
Check the TDC and  valve timing as per Jaydubs excellent advice
charge the battery up
get the prayer mat out out
Clarkey


* 20190317_152152.jpg (2496.93 KB, 3264x1836 - viewed 3 times.)
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Fulvia Coupe S2 Flavia Coupe 1967 1.8 Kugelfischer Prisma 1.6 carb Y10 Fila Y10 Touring Dedra 1.8 Dedra 2.0 Turbo Appia S1
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