Water pump / steam line mod
 

Has anyone done the mod and has pictures or info on it. Im looking for any links on here but cant find anything that really explains it. If you can help me out that would be appricated. Thanks

Re: Water pump / steam line mod
 

You drill and tap a barbed fitting to the flat spot over the upper port. Nothing special about it

Be careful because the alum is very thin there and easy to strip. A 90* fits best

Alternatively if you have the stock 3rd gen radiator, check the heater core return port to see if its threaded. If it is, screw a barbed fitting directly in there and run the steam line to it. Saves you the trouble of permanently altering your pump

Re: Water pump / steam line mod
 

Dude, i told you I would do this for you...


And Pocket...his waterpump doesn't have a flat spot over the upper port.

Re: Water pump / steam line mod
 

Yeah its odd it doesnt have a flat spot at all. I will see if the rad has that return line as i think it does actually as there is a rubber cap on there. Never knew what it was for, i guess i do now.

LOL i know you did just trying to get ahead of the game before the snow falls.

Re: Water pump / steam line mod
 

well I did the mod and since I havnt seen a water pump like mine on here I thought id share some pics of how i did it. Notice the top of my pump is rounded and not flat like a average LS fbody water pump. Heres some pics if anyone needs to know how to do it in the future

Attachment 380090
Attachment 380091
Attachment 380092

Re: Water pump / steam line mod
 

where did you get that fitting from? partnumber?

Re: Water pump / steam line mod
 

Here ya go.

http://www.summitracing.com/parts/NEX-16106/

Re: Water pump / steam line mod
 

Got it from a local parts place. I know napa carries them for a few bucks. Mine had a few of them and are common to have. All it is, is a brass 90 fitting. Ita the same as the post above with the summit link

Re: Water pump / steam line mod
 

The part I posted is the actual part I ordered and used on my Holley fuel pump. It's a 3/8" NPT to 3/8" barb but you can find them in any combo. Remember to use the correct NPT tap and a little Teflon tape.

The key is to tap the hole progressively larger and test fitting your fitting so that it seals at the angle you want it to. Meaning so that the barb is pointing in the direction you want it to while still sealing properly.

Re: Water pump / steam line mod
 

What did you guys do if your 3rd gen radiator isnt threaded?

Re: Water pump / steam line mod
 

Re: Water pump / steam line mod
 

hahaha But Ill still have a big hole in my radiator return port ;)

Re: Water pump / steam line mod
 

Do you have a port just under the overflow port? If you do mine came plugged when I bought it last year. Its a rubber cap with a hose clamp on it. If you need to plug it just use a piece of hose and a bolt in one end with a couple hose clamps.

heres a pic of mine with the 3rd gen rad. Only pic I got at the moment

Attachment 379705

Heres a pic of the waterpump on the car just got to get a longer hose to connect them

Attachment 379706

Re: Water pump / steam line mod
 

Thats what I have there a port im trying to connect it to the steam tube but its unthreaded and I want it to be decent no jb weld lol... I Might try and look for a tee or some kind of reducer

Re: Water pump / steam line mod
 

what i did for mine was put a short piece of rubber hose on the port on the rad and put a brass fitting in it with a nipple on it and some clamps and ran my steam line to it. i can get pics if you want.

Re: Water pump / steam line mod
 

Here's my idea for it.
Attachment 230302
I found a tee at the auto parts store that should work nicely. I used a short rubber nipple between it and the radiator, run the steam line to the smaller side and will cap off the other side of the tee. It probably won't look all that great, but should do the job nicely.

Re: Water pump / steam line mod
 

It will do the job yes and as long as you dont mind the ways it looks who cares. I did mine with the water pump MOD as I cant stand having lines, tubes, wiring ETC going all over the place. It drives me nuts and in my mind makes my motor look cheap. Thats just me and maybe im too anal for my own good

Re: Water pump / steam line mod
 

That vacuum nipple is going to blow off of there the second you make any pressure.

Re: Water pump / steam line mod
 

Even with clamps? I'll have to check, but I thought it was a heater hose tee for... "the F word". Um, a Ford product :D

Re: Water pump / steam line mod
 

I'll go get some pics of what I did on mine

Re: Water pump / steam line mod
 

here ya go

Attachment 379675
Attachment 379676

used something like this

http://www.1st-product.com/uploads/2...for-gas-37.jpg

Re: Water pump / steam line mod
 

that looks like its a pretty solid solution if you dont want to drill the pump for sure.

Re: Water pump / steam line mod
 

The vacuum cap where I put the arrow will blow right off its not going to work. You can either put a bolt into another piece of hose with clamps or get an elbow etc but that little cap will not work

Re: Water pump / steam line mod
 

Oh. Yeah, I just put that cap on there to keep the debris out. I'll put a hose type cap on it when I get it in the car. Thanks for keeping an eye on me though ;)

Re: Water pump / steam line mod
 

This looks very similar to mine, actually looks better lol. My setup is hideous because we used garden hose fittings/tubing/clamps to reduce it for the steamline....i'm gonna have to change it as it looks rediculous.

Re: Water pump / steam line mod
 

Seems to work pretty good so far

Re: Water pump / steam line mod
 

I am going this route.....

http://www.amazon.com/gp/product/B00...pf_rd_i=507846

Re: Water pump / steam line mod
 

Going to thread a hose barb into the side?

Re: Water pump / steam line mod
 

Id like to see how that looks when your done for sure

Re: Water pump / steam line mod
 

Thats the plan...... should be here tomorrow, then I can light this thing finally..

Re: Water pump / steam line mod
 

Ok, here is what I came in the mail from Summit

Autometer radiator hose adapter part #2282 ($50 shipped)

I had to go buy a 3/8 to 1/4 npt adapter, then a 90 to get what you see here. ($15 at Ace Hardware)

then found a suitable place that didn't interfere with my CAI and cut the hose there. I am using the stock 4th gen upper hose. Cut out about 1/2" to get it perfect.

now surprisingly this made filling up motor with coolant very easy. I disconnected the adapter, and just pivoted the upper hose thats still attached to the waterpump straight up, and filled the block. The air came up the steam tube, and once coolant started running out of the adapter, I stopped and connected everything. Added a little more to the radiator and I was done....

Re: Water pump / steam line mod
 

I still had to add some coolant after I fired up the motor..... had to burp the heater core too..... still, a lot easier than the last time I replaced the water pump two years ago or so....

the adapter is above the TB, and it is upstream from the motor too. I am really happy with this so far and it seems to fit a lot better than the ls1 radiator I was using. Just a cleaner look for me.......

Last pic

Re: Water pump / steam line mod
 

That looks real nice you should get some of those black spring clamps though... Its a great option Its pretty high priced though

Re: Water pump / steam line mod
 

Nice! i like that, but damn thats pricey :/

Re: Water pump / steam line mod
 

I like there are a few options now in this thread for everyone to try. I will try to get a pic of mine tonight when I finish it as I just got some line today for it

Re: Water pump / steam line mod
 

Heres mine done. To me its super clean and you wont even see it as thats what I wanted
Attachment 379057

Re: Water pump / steam line mod
 

Looks good

Re: Water pump / steam line mod
 

looks similar to mine. I did this when I did the swap. but I had a chunk of brass and made it one piece . I think there was a picture of it in one of the posts

Re: Water pump / steam line mod
 

Hey guys, I am looking at my steam tube options, does drilling and putting a fitting on the water pump actually work? I would think that is creates a mixing flow in the coolant...no?

Re: Water pump / steam line mod
 

I saw this on eBay the other day and thought about ordering one. Is it harmful to run this line from one side of the head to the other like this without having to tap into the water pumper or radiator or some other coolant source?

Re: Water pump / steam line mod
 

I wouldnt recommend it. Its a steam line to relieve hot spots from the 4 corners of the cyl heads and greatly aids in bleeding the coolant system. It does show some promise in the design

Id grab two of them for a 4 corner setup, then cut and tee the crossover lines. Port it to the WP like shown or radiator

This is the best solution, IMO.

https://www.thirdgen.org/forums/atta...ine-steam2.jpg

Wish I would have know about it before doing my swaps. It's what I'm going to be using in the LS swap in the '57.

Re: Water pump / steam line mod
 

I know this is old, but did you still drill and tap your water pump? I like the set up you went with, I just dont want to have to drill into my waterpump if I can avoid it.

Re: Water pump / steam line mod
 

Nope, I did not drill my waterpump

I specifically wanted to avoid that route just in case I am out of town with the car and the waterpump craps out on me........ I usually carry enough tools to change a waterpump, but not to drill and tap one.... lol

Re: Water pump / steam line mod
 

Haha, I can relate. Where did you connect it at, the throttle body? Thanks.

Re: Water pump / steam line mod
 

I used it too, with the optional sight glass: http://jagsthatrun.com/Pages/Parts_Cooling_LSI-tee.html

Re: Water pump / steam line mod
 

I bypassed the TB, and ran the line from the steam line to the upper hose. It is hidden by the CAI pretty well too......

Re: Water pump / steam line mod
 

If you dont want to drill it then use the radiator port above. If you take the hose off and look inside, most late 3rd gen radiators are threaded inside, so put a barb on and port it there

Re: Water pump / steam line mod
 

Yeah I had it narrowed down to 1 or the other, ill probally just use the radiator port and be done. Thanks everyone.

Re: Water pump / steam line mod
 

I tapped the bottom of the water outlet by the thermostat, that way the steam is pulled into the radiator and if I need to change the pump, I can do it without having to modify it. Don't need to change the outlet too often. I bent a nice piece of 1/4" stainless tube to go under the TB then down along the WP then down and around the outlet, but behind the nipples for the heater. If you weren't looking for it, you would never know it is there. I wanted to keep from putting another hose/tube to the radiator