Gotta learn somehow

[romegadave]

69 Fj55
Wanted to ask what is the black box beside my alternator regulator (mine's ammeter type-has big clip to hold it on) -fuses on the other side of alt regulator--I know this is an easy one for ya'll

and say....about this VSV vacuum switching valve...I know they must be important but how important? I assume they have to do with emissions but will the engine run rough if not properly hooked up right--can't post pics until I get my boy to help me figure out what I keep on posting.
Grateful as always, Dave

 

[RHINO]

should be the horn relay, not sure about the vsv valve never had one to play with.

 

[Eric Ellis]

Mine was desmogged as well so, I don't know. But a vacuum leak is a leak though it might be seemingly negligeable there.

 

[romegadave]

Will keep searching for info on the VSV--I also have a 70 Ford p/u so the thing looks like a bong out of Bangladesh to me
Dave

 

[romegadave]

The black box has 3 black/yellow wires which go from the top of the box to a wiring harness below and a red wire from the bottom which go to a two prong recepticle right beside it--I have nothing plugged into this recepticle

I wiped off the VSV and it states :

A to Aircleaner
D to Distributor
G to Gasket
C to Carburator

And you are right Eric...I am just in the wind until I get a photo gallery for you folks to see--still enjoy everyone's thoughts-Dave

 

[RHINO]

the receptacle is a plug-in for the trouble light, long gone for most of us but still available to buy.

 

[Eric Ellis]

Dave: Way wrong year but there are some engine box pictures here: https://forum.ih8mud.com/fj55-iron-...185363-need-engine-box-photos-7-75-stock.html

Maybe that will help isolate what you are talking about if it is not the trouble light outlet....which has a removable cap but is at its base only about 1.5" and about 3/4" high.

 

[romegadave]

Thanks for the idea--will do a search of 69 stock engine boxes--maybe straighten out this on wiring/vacuums etc to get er running--Moooochas Grrrracias!!! Dave