help ?

[81ratrodc10]

So i spent the last three days swaping out my 305 for a 350 my problem is with the ditributor and timeing i figired out yestersay that i was a 180 of so this mornin i took it back out refound top dead center droped it back in and it fired right up so then i decide to put the timin light on it but the mark on the balincer doesnt come up in the tab so i figured it was still a tooth off so i pulled it again moved it a tooth now it doesnt run again so i put it back a tooth it started for a second now wont at all it just cranks and cranks but no fire so i need some help please ane thank u

[J Knight]

Did you use the timing chain cover from the 305 and put it on the 350?
TDC on 305 is 12 O'clock and TDC on the 350 is about 2 O'clock position.

[81ratrodc10]

Originally Posted by J Knight

Did you use the timing chain cover from the 305 and put it on the 350?
TDC on 305 is 12 O'clock and TDC on the 350 is about 2 O'clock position.

I used the 350 timing covervthat was on it but im using my distributor from the 305 that shouldnt matter right
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[J Knight]

Originally Posted by 81ratrodc10

I used the 350 timing covervthat was on it but im using my distributor from the 305 that shouldnt matter right
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Dist is the same. Did you also use the harmonic balancer from the 350 and not the 305?

[beamn7]

Originally Posted by J Knight

Dist is the same. Did you also use the harmonic balancer from the 350 and not the 305?

Most likely your problem. I had the same issue when I swapped my 305 for a 350.... When I ordered a balancer for the same model year as my truck but with a 350, it produced a balancer with the mark in the same spot as the 305's. The solution was to mount the new balancer on the old motor along with the bolt on timing tab I was planning on using on the 350 which sits at approx 2 o'clock. I then lined up the notch on the balancer with the factory 0 setting on the old 305 which was on the timing cover and made a new mark on the new balancer that lined up with the 0 setting on the new bolt on timing tab. Then I just removed the balancer and timing tab from the 305 and installed it on the 350. Good to go...

[88Jimmy4x4]

you sure your at TDC?....intake or exhaust stroke?

[81ratrodc10]

Im on the compresion stroke when it was 180 off all it did was back fire thru the carb
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[81ratrodc10]

Yup the only things i kept were my asdceriores and intake from 305 everything else is 350
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[81ratrodc10]

As far as i know the balancer is for the 350 motor i bought a complete motor less the alt and power stearing pump all i changed on it was the intake and ditributor i had it running sounded good but figured i would time it right with a light and not sound now it wont run
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[beamn7]

Where is your timing tab? 12 o'clock or 2 o'clock? Bolted on with timing cover bolts or attached to the timing chain cover and non-removable?

[beamn7]

This shows the difference.....
http://www.hotrodders.com/forum/my-t...ff-200339.html

TDC info
http://www.crankshaftcoalition.com/w...gine_assembled

Timing Mark info
http://www.crankshaftcoalition.com/w..._TDC_Lines_SBC

[chebyshortbox65]

Did you check the cap and rotor for damage is the cap on all the way and did you check the power wire at the distributor

[81ratrodc10]

Originally Posted by chebyshortbox65

Did you check the cap and rotor for damage is the cap on all the way and did you check the power wire at the distributor

Just changed them not to long ago they looked ok to me ya made sure the wire was pluged in had that prob before lol
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[81ratrodc10]

Ya mines at 2 but when it started and i put the light on it no mater how u turned the distributor it never came into the tab so i figured i was a tooth off after changing it around 10 diffrent times to no avail i started over again at tdc on #1 compresion it started for like 30 seconds long enough for me to get out behind the wheel come around passanger side it shut off now doesnt want to start
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[beamn7]

sent you a PM with my #, I'll walk you through it...

[81ratrodc10]

Thank u sent one back
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[INSIDIOUS '86]

Also make sure you have your plug wires in the right position on the distributor. If your one space off it can make things difficult
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[81ratrodc10]

Originally Posted by INSIDIOUS '86

Also make sure you have your plug wires in the right position on the distributor. If your one space off it can make things difficult
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Those were all good double checked them
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[81ratrodc10]

Im going to look at it again tomarrow after work so hopefully i can figure it out
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[81ratrodc10]

Well i guess after work today ill start the process all over again and c what hapens
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[81ratrodc10]

Ok so after figuring out i had no power to the distributor it fired right up idels nice revs up good but u put it into gear and it start to drive and it boggs right down i set the timing any were from4 deg to 16 and it still does it i dont know what to look at or would make it do that
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[81ratrodc10]

Anyone got any ideas for me thanx
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[81ratrodc10]

Anyone
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[beamn7]

Will it idle in gear or no?

[81ratrodc10]

Ya a lil rough but it will
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