1978 361 4v ft xd propane . egr ?'s

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Old 02-20-2021, 03:50 PM
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1978 361 4v ft xd propane . egr ?'s

How's this egr circuit supposed to work. Vacuum to egr and dist. advance tee together. ?
 
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Old 02-20-2021, 03:53 PM
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No they are controlled by thermostatic vacuum switches. I have never seen a egr on a FT engine, is there still a emissions sticker under the hood?
 
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Old 02-20-2021, 04:07 PM
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None that I see. Factory propane.
 
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Old 02-20-2021, 04:48 PM
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You sure it's an EGR?

Some governors have a throttle plate under the carb, There are vacuum connections from the distributor to the carb etc.

Post 10 here has the factory info with illustrations on governors.

https://www.ford-trucks.com/forums/1...0-w-391-a.html
 
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Old 02-20-2021, 09:45 PM
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Originally Posted by Urfavplmbr
None that I see. Factory propane.
None of them were factory propane. That was a conversion.
 
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Old 02-21-2021, 12:05 AM
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His decode shows the 361 4v xd, but the HP/RPM is blank and it's got a special order number.

Could his special order have been the propane conversion, thus part of the reason for no HP/RPM stamp?

WAG alert.....
 
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