Mudball,

Yes, that is the one. What are you using now? I have the same set up, but the hose Im using now kind of has a tight turn just before the power steering cooler. It also gets real close to the alternator belt also.

I know what you mean, Vandeano.

Thar ain't much room for the hose!
===
Fortunately, I still had a 7.4mpi (my old motor) to scavenge from!
I used a hose that had some good bends to fit this, and whacked it up to fit.

I am pretty sure it was the one that goes from the seawater pump to the oil cooler in the rear of the 7.4....

Unfortunately, I can no longer attach pictures here, and I am not here enough to justify the cash...
Take care,
Kent

Do stock 2000 HP500 carb motors have thermostats?

Mudball,

No problem, I did the same thing you did. I just happen to have a hose with the correct bend from my box of old hoses.
But unfortunately it got tagged by the alternator belt. Thanks for the info anyway.

When running the dump line for the high pressure relief valve, would there be a problem with dumping it into the exhaust? Could it be dumped in anywhere? My exhaust has what appears to be an un-used valve (see pic) could I hook it in there? The red plugged up thing on the front side of the exhaust, just below the rubber hose that connects one part of the exhaust to the other.

MiamiOS, you can dump the overflow anywhere.
I would not personally dump it into the exhaust, but you could.

My dump flows quite a bit, especially before the thermostat opens.

I would, if given the option, dump it on the drive!

I don't have transom space for a drive dump...
Kent

What is your reason for not dumping it into the exhaust? I was wondering specifically about the angle of that fitting and where the water would be going (reversion, etc.) . I was just hoping there was somewhere to tap it into externally, so I don't have to drill any new holes in my transom

That's a tough call. If you had the stock waterpump, those 2 plugged fittings would be used for the extra hoses that have been eliminated because of your crossover setup. So in a cense you should be able to, but it wouldn't include the checkball assembly and the stock t-stat setup, so it may create a condition of just recirculating some of the water, or not exhausting the water from the motor and more so from the relief valve. You can always try it, but only if you have a temp gauge and WP guage and watch them VERY close. A possibilty is to have a tube welded to the end of your tailpipes right before the hose, and have the go in and point to the exhaust tips. Kinda like dry exhaust.

By dumping the excess water from the relief valve into the exhaust, you are defeating the purpose of the relief valve.
Wet exhaust is the exit point for the cooling water that is introduced to the motor, via the sea water pump. It is the end point before returning to the lake, river, ocean, whatever.
By dumping the excess water into the exhaust, you are just bypassing the motor, and reintroducing the water back into the cooling system.
Dump it overboard.

did you ever solve the high oil temp issue in your hp500?