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gostros
Mr. Obvious
Joined: March 10, 2005
Posts: 841
Location: Houston
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 Posted: Sat Aug 23, 2008 8:29 pm Post subject: Won't start -- Weak Spark |
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I've got a 71 bay. I just assembled a type 1 engine and installed it. The starter turns the flywheel, but the engine won't ignite. I've got a spark, but it is very weak. I've tried 2 different coils and got the same result. It's got petronix.
I'm pretty sure it's all hooked up correctly. Any advice on what to check next? |
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VWDruid
Samba Member
Joined: June 14, 2008
Posts: 1192
Location: Boca de Ratones FL
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| Posted: Sat Aug 23, 2008 8:31 pm Post subject: |
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have a multimeter may want to see how the battery is.
_________________
70 Westy, 2027cc "dual DRLA 40 m140 i55 wjdoc a165 p33 v30 "w100 straight cut 040 polished heads 1.25 rockers 1.5 A1sidewinder supertrapp muffler trans 091 coil SUM-850500 CDI universal svda Pertronix
http://www.storyofstuff.com/
It's not the straight cut gears It's the T.A.R.D.I.S. engine.
wanted Chameleon Circuit |
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gostros
Mr. Obvious
Joined: March 10, 2005
Posts: 841
Location: Houston
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| Posted: Sat Aug 23, 2008 8:41 pm Post subject: |
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| VWDruid wrote: |
| have a multimeter may want to see how the battery is. |
brand new battery (sorry, forgot to mention that.) |
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VWDruid
Samba Member
Joined: June 14, 2008
Posts: 1192
Location: Boca de Ratones FL
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| Posted: Sat Aug 23, 2008 8:47 pm Post subject: |
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| gostros wrote: |
brand new battery (sorry, forgot to mention that.) |
new but dos it have a charge?
have a charger?
_________________
70 Westy, 2027cc "dual DRLA 40 m140 i55 wjdoc a165 p33 v30 "w100 straight cut 040 polished heads 1.25 rockers 1.5 A1sidewinder supertrapp muffler trans 091 coil SUM-850500 CDI universal svda Pertronix
http://www.storyofstuff.com/
It's not the straight cut gears It's the T.A.R.D.I.S. engine.
wanted Chameleon Circuit |
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Alan Brase
Samba Member
Joined: March 28, 2004
Posts: 4532
Location: Cedar Falls, Iowa
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| Posted: Sat Aug 23, 2008 8:49 pm Post subject: |
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This is why I like points. Don't leave your ignition on when the motor isn't running, points will last 20k miles Take a spare set along and know how to change them.
Takes a long time to pay for Pertronix. And they fail, too.
Al
_________________
Al Brase
Projects: 67 sunroof bug, 67 Porsche 912 Targa, 70 Westy
Dec 1955 Single Cab pickup WANT 15" BUS RIMS dated 8/55, thru 12/55
To New owners: 1969 doublecab, 1971 Dormobile
Vanagons:
80 P27 Westy JUL 1979, 3rd oldest known US
83 1.6TD Vanagon, 87 Wolfie Westy daily driver, swap meet home |
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Jody '71
Samba Member
Joined: July 16, 2005
Posts: 2842
Location: Manassas VA
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| Posted: Sun Aug 24, 2008 7:32 am Post subject: |
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Re-check everything you're pretty sure you're not sure of. Try taking the Pertronix out and putting points back in. If your distributor is 180 out, make sure your plug wires are installed properly for the difference. Don't let your new battery get below 12.5 Volts or you'll never get it started. Is your fuel pump pumping fuel??
_________________
'66 Beetle
2011 Hyundai Elantra Touring |
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Dead 1
Samba Member
Joined: October 31, 2005
Posts: 1374
Location: Burning shores of Lake Michigan
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| Posted: Sun Aug 24, 2008 8:00 am Post subject: Re: Won't start -- Weak Spark |
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| gostros wrote: |
I've got a 71 bay. I just assembled a type 1 engine and installed it. The starter turns the flywheel, but the engine won't ignite. I've got a spark, but it is very weak. I've tried 2 different coils and got the same result. It's got petronix.
I'm pretty sure it's all hooked up correctly. Any advice on what to check next? |
How many volts do you have at the coil with ignition on?
_________________
"I reject your reality and replace it with my own"
"The American Dream - true enough because you gotta be asleep to believe it"
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71, 1776 cc. |
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