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#1 |
Registered User
Join Date: Mar 2010
Location: Vandenberg, CA
Posts: 80
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Timing Marks and Timing
After fighting the carb rebuild I finally got the truck to idle and run a bit better. I hooked up a timing light to set the timing but could not find any timing marks on the crank pulley. I brought No. 1 to TDC and checked the pulley again, but nothing. Am I missing something.
Ed |
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#2 |
One foot in front of the other
![]() Join Date: Aug 2008
Location: Parrottsville, TN
Posts: 5,440
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Re: Timing Marks and Timing
No groove line on the pulley?
Do you have a timing tab on the timing gear cover? |
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#3 |
Registered User
Join Date: Sep 2008
Location: Cornelius Oregon
Posts: 1,073
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Re: Timing Marks and Timing
The groove is actually on the Harmonic Balancer and the marks should be on a tab that is on the timing gear cover. If you have a lot of paint build up or grease on the Harmonic Balancer you might not be able to see the grove on the Balancer.
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#4 |
Registered User
Join Date: Mar 2010
Location: Vandenberg, CA
Posts: 80
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Re: Timing Marks and Timing
I'll look again tomorrow. I do have the timing tab on the timing cover. Anybody have pics of what it looks like.
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#5 |
One foot in front of the other
![]() Join Date: Aug 2008
Location: Parrottsville, TN
Posts: 5,440
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Re: Timing Marks and Timing
283
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#6 |
#16876
Join Date: Apr 2005
Location: Auburn WA
Posts: 12,266
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Re: Timing Marks and Timing
__________________
Posted via Stationary Device '71 Custom Deluxe C-20 402. '67 Buick Special 455. '49 Plymouth Special Deluxe. "I love that old car smell" ![]() Some people are like Slinkies... not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs. |
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#7 |
One foot in front of the other
![]() Join Date: Aug 2008
Location: Parrottsville, TN
Posts: 5,440
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Re: Timing Marks and Timing
Yes- not really too concerned about it, it was put back together pretty much stock and not planning on running down the track.
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#8 |
Registered User
![]() Join Date: Oct 2009
Location: Moline, IL
Posts: 157
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Re: Timing Marks and Timing
Your harmonic balancer may have spun on it's rubber core. This happened to mine. When I had #1 at TDC, the mark was about 90 degrees away. At the time, I had no idea that the outer ring of the HB with the timing mark could actually spin on it's hub due to the rubber going bad with age and either cracking or letting loose where it connects to the hub/outer balancer.
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#9 | |
Registered User
Join Date: Mar 2010
Location: Vandenberg, CA
Posts: 80
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Re: Timing Marks and Timing
Quote:
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#10 | |
#16876
Join Date: Apr 2005
Location: Auburn WA
Posts: 12,266
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Re: Timing Marks and Timing
Quote:
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__________________
Posted via Stationary Device '71 Custom Deluxe C-20 402. '67 Buick Special 455. '49 Plymouth Special Deluxe. "I love that old car smell" ![]() Some people are like Slinkies... not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs. |
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#11 |
One foot in front of the other
![]() Join Date: Aug 2008
Location: Parrottsville, TN
Posts: 5,440
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Re: Timing Marks and Timing
I know what you mean, but as far as I know they weren't flush from the factory.
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#12 |
C10 CLUB Y QUE!
Join Date: Mar 2010
Location: Here
Posts: 2,770
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Re: Timing Marks and Timing
ive hand an engine with the tab on the side
but ran with the mark on 12oclock ive seen some engine have tab on 12oclock right behind the water pump |
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#13 |
Registered User
Join Date: Feb 2009
Location: Austin, TX
Posts: 78
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Re: Timing Marks and Timing
PHP Code:
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66' Chevy SWB:350ci-th350,frt. disc brakes, pwr steering, 5-lug waltshow.com/Chevy |
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#14 | |
C10 CLUB Y QUE!
Join Date: Mar 2010
Location: Here
Posts: 2,770
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Re: Timing Marks and Timing
Quote:
cause the engine ran really good like that could never get timed right i just gave it to my brother and he just timed it by ear RUNS GREAT still to this day if i wanted to really fix that first i would try to get engine numbers find out what yrs it is and what it came out of ! get more info on the engine |
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#15 | |
Registered User
Join Date: Mar 2010
Location: Vandenberg, CA
Posts: 80
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Re: Timing Marks and Timing
Quote:
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#16 |
C10 CLUB Y QUE!
Join Date: Mar 2010
Location: Here
Posts: 2,770
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Re: Timing Marks and Timing
in the front right under the heads or in the back driver side might need to get a flash light for that one
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#17 |
Registered User
Join Date: Mar 2010
Location: Vandenberg, CA
Posts: 80
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Re: Timing Marks and Timing
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#18 | |
fan of "Butters" Stotch
Join Date: Dec 2009
Location: St. Paul, MN
Posts: 267
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Re: Timing Marks and Timing
Quote:
Its one thing if you are tuning high $$ race motor, high comperssion, or looking for hp numbers on the dyno but if you want to get that old, simple, low $$, just drive it around trusty SBC running good, forget the light. And yes, I will know I will get a little flack for saying it ![]()
__________________
64 shortbox fleetside replacing rusty junk with more junk, and one day to become a real truck again ![]() |
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#19 |
Registered User
Join Date: Mar 2010
Location: Vandenberg, CA
Posts: 80
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Re: Timing Marks and Timing
That's normally how I time my VW bug.
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#20 |
Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: Timing Marks and Timing
To locate the timing groove in the balancer, just slide under the truck with the engine off and look around the entire balancer, even if you have to bump the engine over. Once it is located, if everything is orange, a black sharpie will highlight the line. If everything is black or cruddy, a white, yellow, or silver crayon can help find the groove when using the timing light. If you still can't find the groove on the balancer with the timing light, it's likely be the distributor is installed 180 degrees out.
It's also possible to have a mismatch of parts on an engine with an unknown history. The factory spot welded timing tabs are not always in the same position on the cover. Depending on what was correct for that engine, the aftermarket bolt-on tabs may or may not accurately identify the correct setting. If this turns out to be the case, timing by ear is closer to accurate than using a light with incompatible parts. If there's any doubt the best solution would be to pull the plugs, find top dead center, and add a timing tape to the balancer in the correct relationship to the timing tab on the cover.
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