burnt rotor button

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vwbuff
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burnt rotor button

Post by vwbuff » Mon Jul 04, 2016 3:35 am

1977 2.0 fuel injected bus

The bus started to hesitate yesterday so I checked the dwell which showed 56 degrees,
When I removed cap to adjust I for this. Has anyone seen this before, looks like the resistor
burned up.
Thinking maybe the coil or condenser has something to do with this, perhaps ?
The number on the button is 1234 332 215 , which should be correct.
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Nova Scotia
77 Riviera 2.0L FI Boston Bob
71 Ghia

vintage vdubbers

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Amskeptic
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Re: burnt rotor button

Post by Amskeptic » Mon Jul 04, 2016 5:44 am

vwbuff wrote:1977 2.0 fuel injected bus

The bus started to hesitate yesterday so I checked the dwell which showed 56 degrees,
When I removed cap to adjust I for this. Has anyone seen this before, looks like the resistor
burned up.
Thinking maybe the coil or condenser has something to do with this, perhaps ?
The number on the button is 1234 332 215 , which should be correct.
There's a bad day for a rotor. Did you open fire the ignition system to check for a dead cylinder?
#4 wire grounding into the tin where the distributor is close? Any damaged spark plug connectors?

Replace, adjust points, make sure everything is well-grounded.
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

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energyturtle
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Re: burnt rotor button

Post by energyturtle » Mon Jul 04, 2016 5:57 am

I've saw this 3 times, all were running electronic ignition with thousands of miles accumulated without service or maintenance.
Scottie

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asiab3
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Re: burnt rotor button

Post by asiab3 » Mon Jul 04, 2016 8:02 am

I have also seen there where a "short" rotor from the late sixties distributors is used with a "tall" cap from the seventies. Do you have part numbers for either? And since you'll be buying a new rotor anyway, compare its height and the cap's height to your old ones for fun. :)

Robbie
1969 bus, "Buddy."
145k miles with me.
322k miles on Earth.

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