Man I did a video on the flowpath of the water on the 496HO facebook group in December of '22. Can't figure out how to get a link here though. Are you a member of the 496HO group? Huge help for owners there.

87Mirage,

FB? Nope. I don't InstaGoogleTwitterFace anything. I'm starting to think I'm missing out on too much by not, but then I get over it. :rolleyes:

There's obviously a link function here on OSO, but sometimes things like FB links don't translate well.

I think I can see it in the drawings, but the whole system is not on any one drawing, so I'm struggling to piece it together while flipping back and forth from one drawing to another to another.

Send me a PM. I'll get you my cell and you can text it to me if you don't mind. I'll figure out how to get to it from there.

Thanks. Brad.

I don't think it has more flow or pressure, just more durable. They didn't recommend a strainer with your intercooler? Maybe you don't have to worry about weeds in your area, but we do in the Delta. BTW, Den-sure offers a larger heat exchanger, about $1,300. That would provide more cooling, but I don't think that will help your rising temp issue.

DonJuan,

I'm more of a mind that we've got a little something going on, as 87Mirage's witness shows the stock heat exchanger is sufficient with our minimal boost. Just gotta figure out what it is. Talking with Hilltop now about getting the impeller changed this week. We'll go on from there.

We don't have weeds so much in either of the lakes we frequent. Cumberland goes through a spring glut of debris, but Hilltop indicated the found no debris in the backflush. Is there potential for debris to build up in a spot that a typical backflush won't flush out?

Thanks. Brad.

The strainer is really to protect the intercooler. I would probably have them back-flush the system again from the heat exchanger back, remove the heat exchanger and flush it, make sure it has the correct anti-freeze ratio (it can actually be slightly more distilled water), remove and inspect the hose connection to the transom plate inlet, re-check and tighten all hose clamps, and have them check the 3/4" hose that goes from the exhaust manifold to the upper riser it it's equipped that way. Of course have them replace the impeller.

DonJuan,

Understood. I have really good output from the intercooler overboard, and it's not more than mildly warm after settling in from a hard run. I really don't think the intercooler is fouled at all.

The manifold-to-riser transfer hose is something I can check myself, and I will do that.

I refilled the coolant reservoir after replacing the reservoir after cracking it during our fuel injector ordeal. I used the prescribed 50/50 stuff, as is in the jug.

The rest I'm leaving to the shop that knows what they are doing.

Thanks. Brad.

I didn’t suggest that the intercooler would have debris in it. I was saying that most guys put in a sea strainer to protect it from weeds and I was curious why you didn’t have one. I don’t think your temperature issue has anything to do with the inter cooler. If you have a shop that’s competent and thorough, they should completely check the raw water cooling system to make sure there isn’t an issue.

DeltaDave,

DonJuan....? Same, same....?

The simple answer is that, when doing the initial build at PQ, they didn't install one, and neither of the two owners before me has felt a need to. We may address it moving forward.

Otherwise, we are working through the possibilities. I have faith in the shop. They've been around for decades.

Thanks. Brad.

I assume you are getting your coolant temp readings from the dash gauge?? Have you verified the accuracy of the gauge with a scanner or laser temp gun??

What year is your engine?? Is it compatible with Vessel View??

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