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07-18-2023, 03:28 PM
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#1 |
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Registered User
Join Date: Nov 2017
Location: Anthem AZ
Posts: 281
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New engine issue
1969 camaro 327. New build. Stock build. New carb edelbrock AVS. New EVERYTHING. (i know we can still get a bad part) Engine was rebuilt by a reputable engine shop here in phoenix.
We installed the engine, got everything filled and hooked up and proceeded to do our initial 15 min break in. We had timing set to about 13 degrees BTDC. we were happy. Car ran great for about 5 mins. Then stalled. we tried to start again and it ran like dookey barely. The timing is now about 20 degrees BELOW the timing tab. let it cool off and try again this AM. Car started perfectly fine and ran great and we double checked timing. It was back to normal? so it ran for about another 4-5 mins and stalled. Now trying to crank the timing is WAAAY off again. Im betting if we let this cool down again it will start fine again. Can someone please help? 2nd new distributor just in case it was a distributor thing, same thing. the distributor is not moving, it is nice and snug enough to turn only for timing issues. |
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07-18-2023, 03:54 PM
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#2 |
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Senior Member
  Join Date: Oct 2014
Location: Eagle, ID
Posts: 3,058
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Re: New engine issue
I think I'd be contacting the builder before proceeding any farther.
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07-18-2023, 05:09 PM
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#3 | |
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Senior Member
Join Date: Aug 2014
Location: Arizona
Posts: 1,485
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Re: New engine issue
Quote:
Agree……
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07-18-2023, 06:11 PM
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#4 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,147
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Re: New engine issue
Was balancer, timing tab installed by the builder or you? If builder call them If you what brand balancer, how did you determine which tab and which balancer to buy? Rotate the engine by hand until it is at top dead center, then look at the balancer and timing tab to see if things line up.
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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07-18-2023, 06:26 PM
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#5 |
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Registered User
 
Join Date: Jan 2011
Location: Chattanooga TN
Posts: 6,212
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Re: New engine issue
Bet you a dollar the choke is stuck closed. Start it, pull the air cleaner and see if the choke pull off is working as it warms up.
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Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 *Currently underway* 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet *Sold* 1985 Silverado Short Fleet *Sold* 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride) |
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07-18-2023, 10:30 PM
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#6 |
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Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
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Re: New engine issue
Is there a temp sensor in the hoses going to the vacuum advance? Those early emission controls had a sensor in the intake manifold that would send full vacuum to the VC unit when the engine got hot. If the hoses are hooked up wrong it can cause a condition like that. Try it with the VC hooked to full manifold vacuum or without it hooked up at all for testing purposes. Be sure the vacuum advance is unhooked when you set the timing.
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07-18-2023, 10:43 PM
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#7 |
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Senior Member
Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 648
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Re: New engine issue
Starting another thread for the same problem just confuses the issue & is not conducive to solving this. It's best to only have one thread per problem!
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67 C10 283 T5 swapped longbed fleetside = wife's daily driver 67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck 67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD 72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck Can you tell we are fans of longbed fleetsides & 67s Chris |
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07-19-2023, 12:40 AM
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#8 | |
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Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,350
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Re: New engine issue
Quote:
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.  RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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