Carb trouble and initial timing...

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Raze

Carb trouble and initial timing...

Post by Raze »

I'm having trouble getting my Spider to fire after being down for 6 months for a HG repair, Allison Automotive radiator, and interior restoration. I'm trying to get it to fire and having trouble. Weber 32/36 DFEV

First, I've checked all wires, plugs, and dizzy and I'm getting good spark.

Second, I compression tested all cylinders and I'm getting #1:110psi, #2:120psi, #3:120psi, #4:105psi and the look good.

Third, I retimed the cams to right on the pointers, I reset the crank to the 0 deg BTDC (big has mark on the timing cover), and the aux gear around 34 deg off vertical, I have reconfirmed I haven't jumped any teeth after multiple starting attempts.

Fourth, I set the dizzy to be pointing at #4 cylinder and double checked cam lobes for #4 pointing up and in toward center-line of engine (full closed).

Finally I set to work on the fuel, it was old but I topped it off with fresh, no dice. It won't even try to kick over if I attempt to set the electric choke, and I confirmed this by removing the air filter, it doesn't look like the butterflies move and they're barely cracked open all the time. I then started playing with the throttle linkage and there's alot of 'dead' zone where the butterflies won't move, and then they do at the top of the range. And then they're maybe 1/2 way open. I know very little about carbs, as they're before my time, and I've gone over the Weber manual but I'm not seeing a means to really correct the amount of open/close I'm seeing. If I floor it (1/2 open) it tries to fire, but it requires me to keep the starter running to hear it trying to kick, that's why I'm thinking fuel, but it could just as well be i'm off time...
FordPrefect
Posts: 245
Joined: Tue May 20, 2008 1:16 pm
Your car is a: 1977 Fiat Spider 124

Re: Carb trouble and initial timing...

Post by FordPrefect »

Sounds similar to what I'm working through. I changed my timing belt, new points/dizzy cap/plugs/wires basic scheduled tune-up, and it refuses to start. Compression seems ok, spent forever double and triple checking the timing of the dizzy and cams.

Still no dice. Driving me nuts.
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124JOE
Posts: 3141
Joined: Fri Jun 24, 2011 7:11 pm
Your car is a: 1978 124 fiat spider sport 1800
Location: SO. WI

Re: Carb trouble and initial timing...

Post by 124JOE »

replace the condencer on the dizzy
when you do everything correct people arent sure youve done anything at all (futurama)
ul1joe@yahoo.com 124joe@gmail.com
So Cal Mark

Re: Carb trouble and initial timing...

Post by So Cal Mark »

it sounds like your ignition timing is retarded
Raze

Re: Carb trouble and initial timing...

Post by Raze »

So Cal Mark wrote:it sounds like your ignition timing is retarded
HEY NOW MARK! no need to call my ignition timing names :D ...(just kidding)

I was thinking the same thing, I read in both Artigue's ignition timing instructions, and the Haynes manual to get everything lined up, and then somehow add timing to 5° of timing by hand for the 1608, I assume this means I need to rotate the dizzy, but do I go 'clockwise' or 'counter-clockwise'?
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124JOE
Posts: 3141
Joined: Fri Jun 24, 2011 7:11 pm
Your car is a: 1978 124 fiat spider sport 1800
Location: SO. WI

Re: Carb trouble and initial timing...

Post by 124JOE »

sorry this is WRONG i was guessing

i think its clockwise for addvance
and counterCW for RETARD
Last edited by 124JOE on Mon Mar 05, 2012 2:13 pm, edited 1 time in total.
when you do everything correct people arent sure youve done anything at all (futurama)
ul1joe@yahoo.com 124joe@gmail.com
digitech
Posts: 336
Joined: Sun Jul 19, 2009 6:37 am
Your car is a: 1979 Fiat Spider

Re: Carb trouble and initial timing...

Post by digitech »

Turning the distributor body counter-clockwise will advance the timing.
Raze

Re: Carb trouble and initial timing...

Post by Raze »

You guys were right on, timing, turned the dizzy back left and it fired right up, now I just have to adjust the carb, thanks guys!
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