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#3776 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
well it's been like Amateur Hour over here on Team Shake 'n Bake I tell you, check out these spark plug gaps, this is rediculous
5 at .040" like they should ought to be was 2 too big, bigger than .045" and 1 too small, way too small, about .030" this team needs to shape up I tell you what Stu OBSERVATION: 1-6 look the same blackish/border line rich, 7-8 look lighter, a bit leaner |
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#3777 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
and to add in salt to injury, check out how high my feeler gauge goes up to, ha ha, .035 man GM Gods sure have a sense of humor - had to resort to the goofy wire style one I swore I would never find a need for, lol
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#3778 | |
Registered User
Join Date: Feb 2016
Location: Clarksville, Tn.
Posts: 183
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Re: Restoring Rusty
Quote:
If you haven't figured this out yet, I'm reading the entire thread from start to finish. I love it. |
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#3779 |
Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: Restoring Rusty
I would run through the valve adjustment again, it is acting like they are a tad too tight.
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#3780 |
Registered User
Join Date: Jan 2009
Location: Calgary, AB
Posts: 1,181
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Re: Restoring Rusty
Spark plug gap on a HEI Chevy should be .045 as .030 was for a points system. Yes using the wrong gap will make a vehicle run like absolute crap. When I put plugs in my truck they were gapped for .030 and I could not get it to run properly no matter what.
Also doing vac gauge measurements I am pretty sure it should be on manifold vacuum not ported vacuum as should your distributors vacuum advance to get optimal performance. |
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#3781 |
Registered User
Join Date: Jan 2007
Location: vernon b.c.
Posts: 3,022
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Re: Restoring Rusty
I was just curious why the engine would overheat with the heater lines plugged,my big block is capped and it runs fine.Is your style engine have a different water gallery set up that would cause that?
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#3782 |
Registered User
Join Date: Mar 2016
Location: N/A
Posts: 146
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Re: Restoring Rusty
I been looking at your photos... y'all gonna have to change that truck's name.
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#3783 |
Post Whore
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Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
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#3784 | |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
Quote:
I do hear a tick and to me it sounds like one may be loose sounds like it is a comin' from the passenger side, here's the absolutely crazy thing though, it sounded exactly precisely the same before I did the top end swap/job, in other words the old heads aka the old valve train was generating the exact same tick (lets just keep that in mind as if it may turn out to be something else, something silly, like a bolt sticking out and tapping a firewall or something crazy like that) |
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#3785 | |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
Quote:
it is |
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#3786 | |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
Quote:
let me get passed this vacuum issue and then I may try a different water pump, and maybe a more than single core radiator after that, maybe go aluminium |
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#3787 |
Post Whore
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Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
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#3788 | |
Moderator
![]() Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,951
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Re: Restoring Rusty
Quote:
Run the gaps as wide as you can get away with it lights the fuel better. .045 is a good number for stock HEI with a new Delco coil and Ignition module.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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#3789 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
well, gapped the plugs this morning to .040 (for starters) and warmed him up for 10 minutes, and then tested with the vacuum gauge again, and no change needle is still jumpy, dang
valve adjustment coming up next after my dentist appointment |
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#3790 |
Registered User
Join Date: Jan 2014
Location: Indpls. , IN
Posts: 795
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Re: Restoring Rusty
Dentist appt. !! Don't take it out on poor Rusty, he has to be worried now.
__________________
Tim K. 84 K30 srw Silverado 454 auto 85 C20 350 C6P auto flatbed 94 K1500 lifted shortbed 350 4 bbl NV4500 |
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#3791 |
Registered User
Join Date: Dec 2011
Location: Morris, Alabama
Posts: 184
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Re: Restoring Rusty
Can't you combine the .035 and .010 to get to your .045? That's the way I was shown by my dad when I was learning engine stuff.
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#3792 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
thought about it, but they have some heavy lube on them so that probably will add thickness to it, so I just used that wire wheel one, I may pick up a proper feeler gauge set today, I like decent measuring implements when I can afford them
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#3793 |
Post Whore
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Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
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#3794 |
Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Restoring Rusty
What vacuum can are you running? That can make the engine throb like that, although that is usually on the low end of vacuum, not the high end where you are.
__________________
Rich Weyand 1978 K10 RCSB DD. |
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#3795 |
Post Whore
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Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
hi Rich, what can are you talking about? if the one on the dizzy than I am not using that during the test, its like setting initial timing, no vacuum advance
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#3796 |
Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Restoring Rusty
No, it's not like initial timing. You need to tune the carb with the vacuum advance hooked up. There's your problem. You are running a way-too-late spark.
__________________
Rich Weyand 1978 K10 RCSB DD. |
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#3797 | |
Registered User
Join Date: Jan 2009
Location: Calgary, AB
Posts: 1,181
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Re: Restoring Rusty
Quote:
2) Mechanical Advance = How much your distributor pulls with weights and springs 3) Total Timing = Initial + Mechanical @ 2500-3000 rpm 4) Carb tuning is 1-3 setup PLUS vacuum advance Vacuum advance is there to help with idle and cruise and can help with MPG |
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#3798 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
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#3799 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
decided to do a compression test before doing a valve adjustment, it's always good to have a baseline
man I was so bummed to find out that my trusty ol' compression gauge was not working, it read 0 for the first 4 cylinders so rented one from AutoZone for $40 bucks (which they refund you if and when you return the tool) before Pontiac Mike told me to check the Shrader valve on my old hose, and sure as sheet the cheapo tiny valve is bad, so that tells me my gauge may be good after all Last edited by Gregski; 05-03-2016 at 04:59 PM. |
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#3800 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,828
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Re: Restoring Rusty
man my cylinder pressure looks great, #1 and #2 were initially low but retested great
I always like to test twice once 1 through 8 and later on after re warming up the vehicle 8 through 1 |
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