...and I got relays on my mind, yes I got relays on my mind

[Turbogus]

Contour fan swap;
Are these relays the correct ones as shown in the diagram?



Friggen Ford Dealership can't tell me.​

 

[BusaDave9]

The schematic of the left relay is standard relay. You could use a relay intended for off-road lights. The relay pictured looks right.

The relay on the right has a built in diode. These are sometimes used to turn on and off things like motors that have a lot of inductance. The relay on the left doesn't need a diode because it only shifts the motor into high, never turns it off. Does the relay on the right have a diode? Can't say from the picture. I'm surprised that the ford dealer can't give you a relay for a Ford Contour. You can test with a multimeter that has a diode tester to make sure current can only go through those 2 terminals one way.

 

[Turbogus]

From the schematic K46 is the high speed relay and I've seen several posts that it needs to be a 70/80 amp on account of high initial current draw on fan motor startup. Of course what I've been reading may be inaccurate. But are these the accurate relays do you think?

 

[BusaDave9]

Relays have very few specifications.

How much voltage is needed to activate the relay? If it's an automotive relay it's a 12 volt relay.

How much current can the output handle? If you have a relay that can handle 60 to 80 amps it should work fine.

If the ford dealer can't sell you a fan relay for a Contour I would just go with what you have.

 

[IOPort51]

Home » Shop » Relays / Fuses » GM / Delphi Sealed Metri-Pack ( Metripack ) 630 High Current Sealed Relay Kit SPDT 40 AMP


just to confuse things this is a site with a lot of relay options.
Bosh has a very good site as well all about selection and use of relays.

 

[Turbogus]

Thanks so much Busa and IO, by all indications that small Ford relay with the two larger load spades is indeed 70/80 amp rated.
Since I was intending to wire these up using this diagram;



...and in so doing, keeping with the relays that were originally assigned to these fans I thought I couldn't go wrong, but owing to the lack of information about this 5 bladed relay;


...it's looking like I'll have to abandon this idea and supplant this relay with a standardized 40 amp relay (IF I can find one locally) but with the barrier of idocy brought about by the apparent exclusive reliance on computers at vendor level, this may prove an impossible task in this area.

 

[Turbogus]

Went back to the boneyard looking for a bank of relay sockets (small footprint) and I found two more 70/80 amp relays for free with a more contemporary number;



I scanned several vehicles for small footprint relay pods, but so far those that take Bosch style relays are 6x9" and larger.​

 

[Turbogus]

Sorry for all my questions and posts folks. I've been called on this in other forums.

 

[CJ]

Sorry for all my questions and posts folks. I've been called on this in other forums.

I don't understand you post. This is a discussion forum hence - open for discussion. Ask and post away...

 

[Turbogus]

Thanks CJ Well, I broadcast that photo of the relay so the part no. was clearly visible and someone in another forum took offence at that "broadcast" as it appeard on five different threads.

 

[Turbogus]

Haaaaaaaaaa!
I've got the wires secured into the plug as best as I can but do you think I could find these



(.375/9.5mm Flat Plug Sleeves with catch) within a 50 miles radius?

 

[Turbogus]

Yippeee! Got a box of 'em in and the ARE the right ones/size!



...and I have more faith in Czech manufacture than that of China. Also as I've promised on more than a couple forums if anyone else is building these relay sockets drop me a line and I'll mail you enough of these to get your fan project going on this 70/80 amp relay!

 

[Turbogus]

So now that the oil leak is fixed (for now) and the shelves in the overcrowded garage are getting (some) of the stuff off the floor giving me room to work it looks favorable that I'll be starting on my underhood electrics soon. Scored this at the local bonyard for $25 clams, has all the relay slots I'll ever need. (out of a '93 Ford F150)




Now just have to adapt one of these relay sockets for that wide bladed relay...

 

[Turbogus]

Well, I removed the accessory relay panel 'cause if goofed, I didn't want to screw up the main panel. So I romoved the main panel so I'd have clearance for tools and the bracket made for a nice stand...

This image has been resized. Click this bar to view the full image.

Took my Dremel tool with titanium grinding bit to one of the relay sockets and started to grind relief for the oversized 70 amp socket...

This image has been resized. Click this bar to view the full image.

It took patience and several fitment tries but it came along nicely, the plastic didn't melt or crack, instead produced grain like dust (make sure you do this wearing grubbies and over a newspaper)

Front view (note the larger terminal size of that 70 amp socket)

This image has been resized. Click this bar to view the full image.

This image has been resized. Click this bar to view the full image.

To square up the socket for the red top flange took a little more relief grinding of the socket panel and the top flange but now it snaps in place and holds the relay fast.

This image has been resized. Click this bar to view the full image.


I'm no skilled technician, but I put this all down to all the Tamilya plastic models I built as a kid growning up in the 70's.

 

[007]

Okay... I'll bite...

What's the benefit of a Ford Contour fan upgrade? What problem is being solved... Never heard of this...

 

[Turbogus]

Well, in "Black Betty"'s case when I first got 'er she had this Hayden pusher fan without any other. She ran hot in the summertime and I knew that pusher's were not as efficient as puller fans so converted to puller position/polarity. Later added a shroud, Flow Kooler water pump and other gear only to find that this Hayden fan was inapproaprite for the size of the opening of the shroud. As I already have one controller set up and working it'll be no trick to add another for the Contour/Mystique dual fans, to get a handle on controlled cooling in the summertime.

 

[IOPort51]

A couple of questions come up, what size engine, it does not seem to be in your profile, and what size Hayden fan you were trying to use. Where does the information on push vs pull come from?

Well, in "Black Betty"'s case when I first got 'er she had this Hayden pusher fan without any other. She ran hot in the summertime and I knew that pusher's were not as efficient as puller fans so converted to puller position/polarity. Later added a shroud, Flow Kooler water pump and other gear only to find that this Hayden fan was inapproaprite for the size of the opening of the shroud. As I already have one controller set up and working it'll be no trick to add another for the Contour/Mystique dual fans, to get a handle on controlled cooling in the summertime.

 

[BusaDave9]

Here's some info on installing the Ford Fan.
http://www.jeep-cj.com/forums/f35/electric-fan-standared-1076/

A popular and almost bolt on electric fan for a CJ is a Ford Countour fan. Here are a couple of links.

http://www.jeep-cj.com/forums/f2/compatible-engines-69-cj-586/#post2449

http://www.jeep-cj.com/forums/f49/useful-info-thought-id-share-665/

That last link that CJ posted has a few links to hook up a ford fan.

 

[Turbogus]

A couple of questions come up, what size engine, it does not seem to be in your profile, and what size Hayden fan you were trying to use. Where does the information on push vs pull come from?

Howdy IO, ltns

I'll re check my profile following this post, 'Betty's got a Waggy 360 that, by the looks of 'er piston skirts last time I had the pan off seems to have been rebuilt within 7 or 8 years. The fan measures 17 inches across,



as to the model of Hayden fan I have no idea, it was installed by the P.O. as a pusher. Over the years from reading Petersons', JP and forums the consensus seems to be that pusher fan can be added as assister fans to enhance cooling in extreme situations to the primary fan. Of course there'll be detractors but as I recall my old '77 Chev Blazer had the SBC 400 motor that was sensitive to overheating which is why Chevy incorporated additional water jackets in the design. While my old Blazer was equipped with a GM Turbo 400 Transmission and air conditioning her six row radiator had only the puller fan.

Your/our milage may vary

 

[IOPort51]

I am about to put two 10" Hayden pushers on the CJ and do not foresee any problems cooling the AMC 258 i6 / 4.2l . I have had cooling issues recently but found the radieator to be pretty heavily scaled up, I have never had problems before, even in summer stop and go traffic in Dallas, so I think the new 3 row should be good with 1000 cfm free air.

I am thinking that the V8 has more room between the pump and the radiator, The Concourse fan would not work for me, not enough room. I had a Taurus fan and had to get real creative with the placement, off to one side.

Just for the record, I am almost always here but the expertise level of this forum is so much higher than it once was, about the time I get ready to post something some one else has done a good job of covering it and took the words right out of my mouth.

Howdy IO, ltns

I'll re check my profile following this post, 'Betty's got a Waggy 360 that, by the looks of 'er piston skirts last time I had the pan off seems to have been rebuilt within 7 or 8 years. The fan measures 17 inches across,



as to the model of Hayden fan I have no idea, it was installed by the P.O. as a pusher. Over the years from reading Petersons', JP and forums the consensus seems to be that pusher fan can be added as assister fans to enhance cooling in extreme situations to the primary fan. Of course there'll be detractors but as I recall my old '77 Chev Blazer had the SBC 400 motor that was sensitive to overheating which is why Chevy incorporated additional water jackets in the design. While my old Blazer was equipped with a GM Turbo 400 Transmission and air conditioning her six row radiator had only the puller fan.

Your/our milage may vary