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PostPosted: Mon Mar 18, 2019 4:00 pm 
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Location: Austin
Hey fellow Luv owners need help here.


I have a 1979 that was starting and runnig. be runs very choppy and stutters alot. so i attempted to move the timing a bit and i think i got the timing off.

Because no she wont start at all.

any advice on reseting the timing? Finding TDC and so forth?

Thanks!!


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PostPosted: Mon Mar 18, 2019 6:28 pm 
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Location: Kansas
Get a timing light.

Also get a service manual. Chiltons and Haynes are a joke IMHO. I bought mine off ebay. Here's a link for a '79 manual on ebay. https://rover.ebay.com/rover/0/0/0?mpre ... 0718627050. These manuals are original Chevrolet Dealer service manuals the mechanics at the dealerships would use. They are invaluable.

I sent pictures out of my service manual. I have a '77, but the specs should be the same. (Same engine, same specs.) Good luck. I can send other pics if you need. But seriously, buy the manual...

Jason


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PostPosted: Tue Mar 19, 2019 8:47 am 
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Location: Magnolia, AR.
When you adjusted the timing it may have jumped time or it may have been off before you tried to set it also.


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PostPosted: Tue Mar 19, 2019 9:22 am 
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Check your point gap, LUV points are prone to burning/sticking together, then pulling apart leaving a crater on one side & a mound on the other. This changes the point gap, the smaller the point gap the harder it starts, if the point gap is too small the truck won't start at all. Plus the point gap also sets the dwell angle, which needs to be in the correct range to time correctly.
Valve lash can also cause timing-like symptoms, set the lash before the timing. Bad plugs, wires, rotor & cap can cause the rough running, fix them before timing.
If any of the smog system has been deactivated you can usually dial in more initial advance than a smog legal engine. I've found the best way is to gradually advance until the engine starts to ping under load, then retard until it quits, then check with a light & even mark so you can readily return it to that setting. This is only after the points, plugs, rotor, cap & valve lash are all good.
Edit: That's an acceptable price for the FSM, it's actually a bit cheaper than the one I bought from GM when my truck was new.

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PostPosted: Wed Mar 20, 2019 5:27 pm 
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i appreciate everyones reply.

i just checked for spark and i dont have any. and i had just gave it a tune up.

new Coil. wires,plugs,rotor and Dist Cap.

would the adjustment cause it to have no spark??

i also changed out the Ignition coil with another new one and still no spark.


also ordering a service manual off of ebay. thanks to Jason_dean for the suggestion.


Thanks!

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PostPosted: Wed Mar 20, 2019 6:34 pm 
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if you have a volt meter it should have 12 volts on the plus side of the terminal, with the ignition turned on. if it has a ballast resister check the resistance on that also. if you run a wire from the positive terminal of the battery to the plus side of the coil and you get no spark, it usually the point fried or gapped wrong.


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PostPosted: Wed Mar 20, 2019 7:10 pm 
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Location: Kansas
Glad to help. This forum is great for guys who need to pick a brain of someone who has been there and done that. Good luck!

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PostPosted: Wed Mar 20, 2019 7:37 pm 
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RedSwampFrog wrote:
if you have a volt meter it should have 12 volts on the plus side of the terminal, with the ignition turned on. if it has a ballast resister check the resistance on that also. if you run a wire from the positive terminal of the battery to the plus side of the coil and you get no spark, it usually the point fried or gapped wrong.




i really appreciate this information thank you!

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PostPosted: Mon Mar 25, 2019 9:35 pm 
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UPDATE.

I Finally got her started. turned out that the points had closed and wasn't letting it get a spark.

re gapped the points and she turned right on.


also received the shop manual for the Luvs as suggested.


Thanks for all the help!

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PostPosted: Sun May 26, 2019 10:04 am 
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A condenser failing will cause all kinds of problems also.


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