Adding a tell tale to a V-4 Crossflow - and call for others

[iwombat]

Occasionally someone does a search and finds my posts on adding a tell-tale, then PMs me on what to do. I never did get good pictures the first time around. Well, here I am doing it again, so I figured I'd take some pictures for anyone else wanting to do this.

This time it's a '76 85hp, and it has the convenient casting boss on the side of the #1 cylinder.

Procedure:
1. Center punch the boss
2. Drill pilot hole with . . . well something smallish.
3. Enlarge pilot hole with 11/32 bit.
4. Tap with 1/8 pipe tap.

Fit with either a 1/8" threaded bronze nipple, or the OEM fitting.


Pictures of the location ensue.

 

[_brad_]

Re: Adding a tell tale

Re: Adding a tell tale

You da man!

 

[iwombat]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Tashasdaddy thought this would make a good FAQ. I would tend to agree IF I can include some other engines besides the v-4 crossflow. Lacking a better place to do so, if you folks have pictures, diagrams, or whatever for some of the other models, especially the 3-cylinders, post them here. I'll see what I can do about putting together a write-up.


Also, what years did OMC start putting tell-tales on particular models?

 

[Willyclay]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Great info for us old guys with old motors. Thanks!

 

[tashasdaddy]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

also the 2 cylinders, like the 50hp. there are so many questions on this.

 

[mrfixitman40]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Would this also be a good way of putting a temp sending unit or is the wall to thin??

 

[ezeke]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

The 50HP, 65HP and 70HP telltales can all be set up according to Service Bulletin 2276. The OEM fittings listed can be used on most engines, including the V4 and v6 models.

I'll put a jpg copy below, but you will have to enlage it with your picture program to read it easily:

 

[iwombat]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Thanks, Ezeke.


Still collecting . . .


Does anyone have a good picture of the fitting that goes through the cowling? Preferably w/o hose and w/o the nipple installed. I'd take one myself, but I broke a clip on mine and it's held in with a dollop of 4200. Not the sexiest picture for a FAQ.


Here's where it's living for now.
http://www.combshouse.com/~bob/WaterPressureIndicator.html


Still need info on the inline 2s and some part #s for all the OEM fittings. I'll look 'em up eventually. But if someone already has them handy.

 

[ezeke]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Part Number 321885 looks like this:

 

[tashasdaddy]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

my 93 40 only has the hose going thru, and extending about 2 inches.-+

 

[iwombat]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

That bulkhead fitting limits the flow and keeps the water pressure up inside the powerhead. W/ just the hose, you're probably losing a little pressure.

And thanks again ezeke. I added the fitting to the write-up.

Still evolving.

 

[ezeke]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

See if you can get our Monday morning catch in there somehow. That's my brother-in-law, Joe O'connell, holding a 42 inch striped bass that came aboard at 7:00.

 

[iwombat]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Nice, so do you tap the outlet hole right on top of the port gill?

 

[ezeke]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Exactly- don't you just love irrelevance?

Actually you put the hole right where this factory one is:

 

[iwombat]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Be sure to coat the drill bit with Venezuelan Beaver Cheese to catch any gill rakers that fly off in the process.

 

[HighTrim]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

If you want pics from a V6 i could mail you mine with parts list. I dont want to know what Venezuelan Beaver cheese is, lol Nice catch Ezeke!!

 

[iwombat]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

More pix - more better.

I may or may not use them, but some choice is better than none.

 

[DavidD]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

My engine is a 69 Evinrude 85HP. I'd imagine from reading this thread the red circle in the picture would be a place to add a tell tale?

 

[iwombat]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

Sure looks that way.

Wonder if that plug is already the right size. Maybe it was used for a water-pressure gauge.

 

[DavidD]

Re: Adding a tell tale to a V-4 Crossflow - and call for others

I just wunder if it will come out.......