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 Post subject: Timing possibly?
PostPosted: Mon Apr 04, 2016 5:44 pm 
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TBI Slant 6
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Joined: Mon Jun 10, 2013 12:42 pm
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Location: Jax, Fl
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I just rebuilt my engine. I got my number one cylinder to tdc. Lined my cam and crank dots up. I have gas and fire. It's back firing through the carb. I rotated the plug wire each way and got back fire through the exhaust. Any ideas?


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 Post subject:
PostPosted: Mon Apr 04, 2016 5:57 pm 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
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Location: Portland-ish
Car Model: Fiat 500e
When the timing marks on the sprockets line up the engine is on TDC for #6. Turn the engine 360°, line up the timing mark on the damper, then install the distributor for firing #1. Or just point the rotor to #6.

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 Post subject:
PostPosted: Mon Apr 04, 2016 7:47 pm 
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Guru
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Joined: Sat Oct 12, 2002 11:22 am
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Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
Also, double check the firing order & valve lash settings.
1-5-3-6-2-4

For a first start on a fresh engine, the valve lash is better a little loose then a little tight.
DD


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 Post subject:
PostPosted: Mon Apr 04, 2016 8:48 pm 
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TBI Slant 6
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Sorry I'm not understanding you lol... Do I need to bring number 1 up or number 6?


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 Post subject:
PostPosted: Mon Apr 04, 2016 9:10 pm 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
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Location: Fircrest, WA
Car Model: 76 D100
Quote:
Sorry I'm not understanding you lol... Do I need to bring number 1 up or number 6?
Both. Cylinders 1 and 6 move as a pair, but 180 degrees out of phase in the four stroke cycle.


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 Post subject:
PostPosted: Mon Apr 04, 2016 9:12 pm 
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TBI Slant 6
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Joined: Mon Jun 10, 2013 12:42 pm
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Location: Jax, Fl
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Without taking the timing cover off agin, can I just move the plug wires 180 degrees?


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 Post subject:
PostPosted: Mon Apr 04, 2016 11:40 pm 
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Supercharged

Joined: Thu May 12, 2005 11:50 pm
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Location: So California
Car Model: 64 Plymouth Valiant
No need to remove timing cover.

Remove distributor, rotate 180 degrees, reinstall.

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 Post subject:
PostPosted: Tue Apr 05, 2016 8:36 am 
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TBI Slant 6
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Location: Jax, Fl
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Ok thank you I will try that in a little bit


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 Post subject:
PostPosted: Tue Apr 05, 2016 9:39 am 
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TBI Slant 6
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I got a cough out of it as if it was going to crank but that's it. It's getting fire and fuel


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 Post subject:
PostPosted: Tue Apr 05, 2016 9:53 am 
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TBI Slant 6
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Ok got it fired off


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 Post subject:
PostPosted: Tue Apr 05, 2016 1:01 pm 
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Hopefully it runs Ok for you but none of the last 6 or 8 engines I have put together had the dots in the right place. Degreeing the cam is the only way to know.

Rick

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 Post subject:
PostPosted: Tue Apr 05, 2016 1:10 pm 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
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Location: Fircrest, WA
Car Model: 76 D100
Quote:
Hopefully it runs Ok for you but none of the last 6 or 8 engines I have put together had the dots in the right place. Degreeing the cam is the only way to know.

Rick
Ditto. I have dealt with new timing sets with the alignment dots as far as 8 degrees off.


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 Post subject:
PostPosted: Tue Apr 05, 2016 2:29 pm 
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TBI Slant 6
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Joined: Mon Jun 10, 2013 12:42 pm
Posts: 191
Location: Jax, Fl
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It ran but it didn't seem right..it's sitting on the ground running. I think I will take the cover off and degree the cam. When I originally built the engine, which was two years ago, I don't remember what my cam specs were. How will I go about that?


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 Post subject:
PostPosted: Mon Apr 11, 2016 4:39 am 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
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that is good, I thought something was wrong with me!! I never install a cam by dot location. it always seem to be a crap shoot.


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