Pressure releif valves

« **on:** February 18, 2009, 05:04:34 AM »

OK, where do you get an adjustable pressure valve for between the jet and engine, first off, and how much pressure should it be set at? This weekend should get the Moo running, HP 460 with Rewarder headers, still unsure about running a thermostat or not, but HELP! before I make a milkshake out of THIS engine too!

Ray

« **Reply #1 on:** February 18, 2009, 07:38:30 AM »

Ray the Thermostat kits are not actually available for fords as such , we make/mill "one off" adaptors to use the Chevy/Olds kits on them . re the pressures you might be surprized contrary to what you hear the pressures if set up corectly are around 15 psi The pressure relief valve adust from a little below that to around 80 . attached is a simple header plumbing , I'll be around to help if you need it just call the shop or PM Tom

t-stat kit is $85 ,complete pressure kit with OB dump and T and valve under $100

« **Reply #2 on:** February 18, 2009, 10:01:28 AM »

Here's what is on the boat, as far as a water outlet. haven't removed it to see if they ran a t-stat or not yet.

bad pic, but looks almost like a normal water outler with 3 small hose barbs on it.

Here's the front cover from it

Kinda strange too.

here's what the Yellow Submarine (Saguaro) had on it.

And no, Tom, the boat has no overboard dump on it, gonna need you to put together a care package for me Pronto! PM me with the cost, gotta do it!

Ray

(Hopefully Photobucket works for pics, we all KNOW how much I've fought this battle!)

« **Reply #3 on:** February 18, 2009, 10:10:26 AM »

YAY! I figured it out GT!!! tee hee, see, even a moron can do this........no to resize them................hmmmm

ray

« **Reply #4 on:** February 18, 2009, 10:26:54 AM »

Oh and here's what's going in.

Dam big pics! That didn't work, oh well, I'll get it!

Anyway, '71 block, Ported police interceptor heads, Comp 292 extreme solid lifter cam, Roller rockers, screw it studs w/guideplates, TRW 2443 forged pistons, H-beam rods, Eddie Performer RPM intake and 750 Carb (will be replaced by Offy Tunnel and 2 750's if all works out ok for now, didn't want to sink EVERYTHING in 1 shot)

Ray

« **Reply #5 on:** February 18, 2009, 01:14:38 PM »

I believe you are wanting something like a Watts 5300C adjustable by-pass relief valve. You should be able to find this as a plumbing supply store.

I have mine set at 15 psi. Anything above that is dumped thru the relief line plumbed to a thru hull water dump.

Hope this helped answer your question.

« **Reply #6 on:** February 18, 2009, 03:59:34 PM »

Quote from: jet boat performance on February 18, 2009, 07:38:30 AM

pressure kit with OB dump under $100

here you go , straight from Tom @ JBP

« **Reply #7 on:** February 18, 2009, 05:15:32 PM »

Quote from: jet boat performance on February 18, 2009, 07:38:30 AM

Ray the Thermostat kits are not actually available for fords as such , we make/mill "one off" adaptors to use the Chevy/Olds kits on them . re the pressures you might be surprized contrary to what you hear the pressures if set up corectly are around 15 psi The pressure relief valve adust from a little below that to around 80 . attached is a simple header plumbing , I'll be around to help if you need it just call the shop or PM Tom

t-stat kit is $85 ,complete pressure kit with OB dump and T and valve under $100

The drawing makes sense above, my only question is where does the pressure relief valve go in the pic? I'm looking to setup the same kind of deal on my boat.. Right now it doesn't have a relief valve or a t-stat, temp is controlled by turning down the gate valve which I really want to get away from and save my motor.. Thanks..

« **Reply #8 on:** February 18, 2009, 05:25:02 PM »

Nevermind, I see it @ the bottom left..

« **Reply #9 on:** February 18, 2009, 07:49:46 PM »

Quote from: 2savage4you on February 18, 2009, 03:59:34 PM

here you go , straight from Tom @ JBP

Thanks Steve

!
re the pressure relief it goes on the "water out" from the jet and back overboard before the water goes to the front of the motor Tom

« **Reply #10 on:** February 18, 2009, 08:05:09 PM »

Another method to insure you don't get too much pressure in the block is simply to run 2 dump lines from your block (if you're running O/T or any other injected headers) Almost every manifold has places on it to take H2O from, find one and use that for your header water, take BOTH of the outlets from the Tstat housing overboard, you should never see more than 18-20 PSI in your block this way, and that's right where you want it.

Oh yeah, it won't cost you a C note either!

« **Reply #11 on:** February 18, 2009, 10:32:35 PM »

Ok, thought I had a headache just getting home from work, now I REALLY got one,

where's my beer? oh yeah, ok. I think I get it. No thermostat in the thermostat housing, right? stick with the dealio that's on the engine with three outlets on it, that way I dun need to take pipe plugs out of the Intake. Or use the flat one with 2 on it and remove a pipe plug so I can run AN fittings later. Run two straight to an over board dump (For which I will need to drill and install some sort of fitting). Then as insurance, run a Watts pressure releif valve after the gate or ball valve from the pump, to a second overboard dump, for which I need to drill yet another hole and install another of the same sort of fitting. Unless I put in 1 big some sort of fitting for all three hoses running out the back of the boat on it. then somewhere in the mess, probably between the gate valve and the releif valve put in a hose fitting for running off a hose.

Do I have this yet

Now to complicate things worse, ( I'm good at complications

), a water cooled oil cooler plumbed in before the remote oil filters. I am going to assume I want to t off the incoming lake water, run one line directly into the one of the block fittings and the other through the cooler then into the other block fitting? Just a guess, but sounds reasonable. Or run one of the dump lines from the t-stat housing through the cooler?

Guys, this is actually starting to make sense in my lil brain, Tom, you able to get a parts list out of all that? lol

THANKS,

Ray

« **Reply #12 on:** February 18, 2009, 10:38:12 PM »

Hey Tom, what's that fitting and clear tube tapped into the side of that pump in the pic for? Never saw anything like that.

Ray

« **Reply #13 on:** February 18, 2009, 11:19:58 PM »

Oh, and.......sounds like, what was her name? (Oh, and there was this time at band camp..................), anyway. The Rewarders are what I plan to run, but no T valve for them. Can I just use an AN T fitting, or do they require a valve like my Bassett T Valve? Don't know what the valve part of it is supposed to do, but if necessary I'll use it and I can pick up another Bassett valve for the bassetts later.

Thanks again,

Ray

« **Reply #14 on:** February 19, 2009, 07:35:53 AM »

Ray I have a good used t valve ,call my cell (check pms) I 'll walk you thru the plumbing deal Happy to help Tom

« **Reply #15 on:** February 19, 2009, 07:56:08 AM »

Thanks Tom, Calling cell..........1 ringy dingy, 2 ringy dingy...............

Looky what Santa brought me early! I guess he wants to make sure I don't break this new engine!

Ray

« **Reply #16 on:** February 19, 2009, 09:08:52 PM »

Whata a "clause" !! maybe it was Fred? anyhow I got you a perfect SWTG Bassset T on my desk when your ready Tom

« **Reply #17 on:** February 19, 2009, 11:11:46 PM »

Quote from: IRRebel on February 18, 2009, 10:38:12 PM

Hey Tom, what's that fitting and clear tube tapped into the side of that pump in the pic for? Never saw anything like that.

Ray

pump primer?

« **Reply #18 on:** February 19, 2009, 11:18:54 PM »

Lol, I dunno, Tom kinda bypassed that one, would make sense for running off a hose, or maybe a flow meter of some sort?

Maybe a new thread, "Whatsit?

?"

Ray

« **Reply #19 on:** February 23, 2009, 10:23:45 PM »

Quote from: IRRebel on February 19, 2009, 11:18:54 PM

Lol, I dunno, Tom kinda bypassed that one, would make sense for running off a hose, or maybe a flow meter of some sort?

Maybe a new thread, "Whatsit??"

Ray

It's a compression fitting. Oh wait you mean what does it do? I believe it is an intake pressure tap. to see what kind of intake pressure you are getting.

looking at that I wonder if i can tap my WJ with a 1/2 water hose bib so i can run it on the trailer. Then just stick a pipe plug in there when I am out on the lake.

« **Reply #20 on:** February 23, 2009, 10:42:56 PM »

Do you guys that run a thermostat w/ a relief valve also run a water strainer of any sort? What if a twig or something of the sort gets pumped into the line from the jet. It seems like it something like that could plug up the thermostat and possibly restrict all water flow?? I want thinking of adding a relief/thermostat kit to my jet, but after that was mentioned to me, it seems like it could be legit issue?

« **Reply #21 on:** February 23, 2009, 10:50:19 PM »

I don't run a thermostat at all! I control my water temp with a hose bib right after the pump then with a hose to the Inlet. My dump also runs through a hose bib so I can control the water in and out. But i usually keep the out Wide OPEN!

« **Reply #22 on:** February 23, 2009, 10:51:56 PM »

No thermostat. 'tis what I'm told, makes sense. Control temperature and pressure through the releif valve and valve controlling engine flow.

Sure a stick or twig COULD give you an issue, but you would notice it in the temp and pressure readings if it stuck there. Hence the need. I think that is the exception, though, and not the rule. I'm sure it's a very rare occurance that anything that small would remain stuck there for very long. Even at 15 PSI, stick your face in an air hose at 15 and see how long you stay in place.

Ray

« **Reply #23 on:** February 25, 2009, 05:43:22 PM »

Does anyone know exactly how much water pressure actually comes out of the jet to feed the water line to the motor?

« **Reply #24 on:** February 25, 2009, 05:53:11 PM »

Quote from: IRRebel on February 19, 2009, 07:56:08 AM

Thanks Tom, Calling cell..........1 ringy dingy, 2 ringy dingy...............

Looky what Santa brought me early! I guess he wants to make sure I don't break this new engine!

Ray

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