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Need some input, my new LB timing can't get to 7.5 btdc.
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rarquilla
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Joined: August 16, 2008
Posts: 90
Location: Nyssa, Oregon
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PostPosted: Sun Mar 26, 2017 7:22 am    Post subject: Need some input, my new LB timing can't get to 7.5 btdc. Reply with quote

I bought a longblock that was professionally built from a reputable builder in California. The motor has been on a rack for about 4 years. I installed it in my VW Thing. I have everything set but the timing won't run at 7.5 btdc. It runs with the vacuum highest around 20. 1600 cc bosch 009. Blue coil. I can get it to run perfect but even full advance is around 45. What am I doing wrong. I even switched distributors. Same thing. Motor runs great! Scat degree pulley.
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74 Thing
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Joined: September 02, 2004
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PostPosted: Sun Mar 26, 2017 10:59 am    Post subject: Re: Need some input, my new LB timing can't get to 7.5 btdc. Reply with quote

You probably have a vacuum leak. What carb/intake manifold are you running? You want no more then abiout 32 degrees max advance with an 009. At 40+ you will fry that engine.
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rarquilla
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Joined: August 16, 2008
Posts: 90
Location: Nyssa, Oregon
rarquilla is offline 

PostPosted: Mon Mar 27, 2017 8:03 pm    Post subject: Re: Need some input, my new LB timing can't get to 7.5 btdc. Reply with quote

I am running a Pict 34 German Soles. I have checked for vacuum leaks and found none. Took the motor on a 100 mile drive and it's running and cooling great. No issues. Put a different timing light on it and it's the same. Full advance is closer to 45-48. I don't get it.
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