1970 C10 Problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevguy7 · 10-27-2006, 02:16 AM

I have a 1970 C10. Everything is stock except that I had dual exhaust put on it about a year ago. I am working on restoring it and have changed all of the hoses, belts, and some gaskets but lately it hasn't been running very well. My truck usually idles well but then when I go and drive somewhere it feels like it is studdering, if that makes sense. I tried some carb cleaner on it the other day and that didn't do anything. I am also about to change the spark plugs, wires, and points. I hope that it may be one of those things. Does anyone have any suggestions? Thanks.

krue · 10-27-2006, 05:50 AM

Welcome to the board from South Mississippi. Change your fuel filter while you're at it.

stllookn · 10-27-2006, 11:02 AM

Welcome from South Seattle (Kent). Where are you located? A tune-up is a great place to start. The next option would be replacing all the vacuum hoses and you might be a carb tune-up and rebuild. I would then do a compression test to see what condition the engine is in. There are several inxpensive books (Haynes Techbook 10305 - Chevrolet Engine Overhaul Manual) that are easy to read and will nearly make you an expert on these old V-8's if you digest everything in them.

glock35ipsc · 10-27-2006, 11:12 AM

What gaskets did you replace? Anything related to the card or intake?

jamon8 · 10-27-2006, 11:12 AM

find yourself a nice hei dissy

Longhorn Man · 10-27-2006, 11:14 AM

welcome to the board.
your studder ismost likely a misfore, and your tune up should probably fix it.
Instead of putting new points in it, you should consider an HEI upgrade. You can do it cheap, and it'll make the driveablilty , off idle power, starting, MPG.... it'll help all of that... plus, you won't have to mess with the points...ever.

chevguy7 · 10-27-2006, 03:45 PM

Thanks for all the responses guys. How easy it to replace the distributor with an HEI? I was actaully wondering about this myself since I have no idea how to change the points and neither does my dad.

orange-c10 · 10-27-2006, 09:53 PM

i did one of those accel points eliminator kits on my truck. $80 and about a half hour in the driveway. didnt even have to remove the distributor.

jimmydean · 10-27-2006, 10:25 PM

The first thing I did for mine was HEI. I got an ok one off Craigs List for $20. You will need to get new wires, but that is part of the tune up anyway. It takes about 20 minutes and a power wire. I ran a new wire off the fuse box, switched 12 volts, and you're good to go.

Set the motor to TDC and that's it.

70c10swb · 10-27-2006, 10:25 PM

Quote:

Originally Posted by chevguy7

Thanks for all the responses guys. How easy it to replace the distributor with an HEI? I was actaully wondering about this myself since I have no idea how to change the points and neither does my dad.

heres a couple of threads that will help ya

http://67-72chevytrucks.com/vboard/s...ad.php?t=17403
http://67-72chevytrucks.com/vboard/s...d.php?t=148346

chevguy7 · 10-30-2006, 03:15 PM

Will I really notice much of a difference with an HEI? I have been talking to some people and they have said it is not too hard to change the points so I have been thinking about just doing that.

Longhorn Man · 10-30-2006, 03:49 PM

Why chainge points every 6 to 8 months, they are getting less and less common at the parts house, MPG and throttle responce increases, and starts up a lot quicker... all good reasons to use HEI.

10-27-2006, 02:16 AM	#1
chevguy7 Registered User Join Date: Oct 2006 Location: Washington Posts: 316	1970 C10 Problems I have a 1970 C10. Everything is stock except that I had dual exhaust put on it about a year ago. I am working on restoring it and have changed all of the hoses, belts, and some gaskets but lately it hasn't been running very well. My truck usually idles well but then when I go and drive somewhere it feels like it is studdering, if that makes sense. I tried some carb cleaner on it the other day and that didn't do anything. I am also about to change the spark plugs, wires, and points. I hope that it may be one of those things. Does anyone have any suggestions? Thanks.

10-27-2006, 05:50 AM	#2
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: 1970 C10 Problems Welcome to the board from South Mississippi. Change your fuel filter while you're at it. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

10-27-2006, 11:02 AM	#3
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,465	Re: 1970 C10 Problems Welcome from South Seattle (Kent). Where are you located? A tune-up is a great place to start. The next option would be replacing all the vacuum hoses and you might be a carb tune-up and rebuild. I would then do a compression test to see what condition the engine is in. There are several inxpensive books (Haynes Techbook 10305 - Chevrolet Engine Overhaul Manual) that are easy to read and will nearly make you an expert on these old V-8's if you digest everything in them. __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)

10-27-2006, 11:12 AM	#4
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	Re: 1970 C10 Problems What gaskets did you replace? Anything related to the card or intake? __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE

10-27-2006, 11:12 AM	#5
jamon8 Registered User Join Date: Apr 2006 Location: southern Il Posts: 335	Re: 1970 C10 Problems find yourself a nice hei dissy

10-27-2006, 11:14 AM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: 1970 C10 Problems welcome to the board. your studder ismost likely a misfore, and your tune up should probably fix it. Instead of putting new points in it, you should consider an HEI upgrade. You can do it cheap, and it'll make the driveablilty , off idle power, starting, MPG.... it'll help all of that... plus, you won't have to mess with the points...ever.

10-27-2006, 03:45 PM	#7
chevguy7 Registered User Join Date: Oct 2006 Location: Washington Posts: 316	Re: 1970 C10 Problems Thanks for all the responses guys. How easy it to replace the distributor with an HEI? I was actaully wondering about this myself since I have no idea how to change the points and neither does my dad.

10-27-2006, 09:53 PM	#8
orange-c10 Registered User Join Date: Sep 2006 Location: Oak Harbor , Wa Posts: 27	Re: 1970 C10 Problems i did one of those accel points eliminator kits on my truck. $80 and about a half hour in the driveway. didnt even have to remove the distributor.

10-27-2006, 10:25 PM	#9
jimmydean Registered User Join Date: May 2005 Location: Beaverton, OR Posts: 3,728	Re: 1970 C10 Problems The first thing I did for mine was HEI. I got an ok one off Craigs List for $20. You will need to get new wires, but that is part of the tune up anyway. It takes about 20 minutes and a power wire. I ran a new wire off the fuse box, switched 12 volts, and you're good to go. Set the motor to TDC and that's it.

10-30-2006, 03:15 PM	#11
chevguy7 Registered User Join Date: Oct 2006 Location: Washington Posts: 316	Re: 1970 C10 Problems Will I really notice much of a difference with an HEI? I have been talking to some people and they have said it is not too hard to change the points so I have been thinking about just doing that.

10-30-2006, 03:49 PM	#12
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: 1970 C10 Problems Why chainge points every 6 to 8 months, they are getting less and less common at the parts house, MPG and throttle responce increases, and starts up a lot quicker... all good reasons to use HEI.



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