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Search: Posts Made By: Don_Juan
Showing results 1 to 25 of 36
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Forum: General Boating Discussion
08-31-2025, 05:22 PM
Replies: 8
Views: 564
Posted By Don_Juan

Thanks guys! Well, brand new replacement...

Thanks guys! Well, brand new replacement thermostat and the top piece came off the first time out! Thanks Hardin Marine!
...
Forum: General Boating Discussion
08-30-2025, 09:33 PM
Replies: 8
Views: 564
Posted By Don_Juan

Raw water flow does not seem to be the issue, the...

Raw water flow does not seem to be the issue, the strainer is full of water and swirling and exhaust water output and manifold temps are normal. I inspected the heat exchanger. It was clear and I...
Forum: General Boating Discussion
08-30-2025, 04:53 PM
Replies: 8
Views: 564
Posted By Don_Juan

496 overheating - not impeller

Last weekend my engine started overheating. Sea strainer is full of water and swirling. Exhaust temps are normal, verified on scanner. I found the cap came off the thermostat, so the pin was unable...
Forum: General Q & A
02-02-2025, 09:57 AM
Replies: 19
Views: 2,121
Posted By Don_Juan

Yes. The PCM was fried and unreadable. I had to...

Yes. The PCM was fried and unreadable. I had to buy a new one. $$$
Forum: General Q & A
08-07-2024, 09:35 AM
Replies: 61
Views: 6,600
Posted By Don_Juan

The strainer is really to protect the...

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...
Forum: General Q & A
08-07-2024, 09:18 AM
Replies: 61
Views: 6,600
Posted By Don_Juan

I don't think it has more flow or pressure, just...

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....
Forum: General Q & A
08-05-2024, 04:21 PM
Replies: 61
Views: 6,600
Posted By Don_Juan

I believe it's common on a 496 port side exhaust...

I believe it's common on a 496 port side exhaust to have less water output. Mine was like that when I first got it. Maybe a Procharger runs hotter, but my 496 with a Whipple doesn't exceed 160 after...
Forum: General Q & A
07-23-2024, 05:33 PM
Replies: 61
Views: 6,600
Posted By Don_Juan

Have you ever chewed up your impeller? If so, did...

Have you ever chewed up your impeller? If so, did you check the fuel cooler, oil cooler and the heat exchanger for pieces? How old is your current impeller and pump housing?
Forum: General Q & A
07-19-2024, 12:00 PM
Replies: 61
Views: 6,600
Posted By Don_Juan

@Brad. Yes, stock heat exchanger. 87Mirage...

@Brad. Yes, stock heat exchanger. 87Mirage thought my temps were good with the 120 tstat. But if a plate cools it down another 5-10 degrees, maybe I should try the plate. More flow seems better. As...
Forum: General Q & A
07-19-2024, 10:18 AM
Replies: 19
Views: 2,121
Posted By Don_Juan

Yes, ignition and fuel pump relay next to PCM. I...

Yes, ignition and fuel pump relay next to PCM. I replaced both. It cranks strong, but fuel pump doesn't prime and it won't start. Fuel pump fuse is good. There is also a harness next to the PCM that...
Forum: General Q & A
07-18-2024, 09:27 PM
Replies: 61
Views: 6,600
Posted By Don_Juan

Not to hi-jack this thread, but I never knew...

Not to hi-jack this thread, but I never knew about the 1" plate. My Whipple 496 has a 120 tstat. During the middle of the summer, it runs about 145-150 degrees running. When I come into a 5 zone, it...
Forum: General Q & A
07-18-2024, 02:18 PM
Replies: 19
Views: 2,121
Posted By Don_Juan

@Brad. Thanks. But they originally programmed it...

@Brad. Thanks. But they originally programmed it for the Whipple charger and repaired it for the IAC driver a few years back. Plus they are only a few hours away and say they can repair it in a few...
Forum: General Q & A
07-18-2024, 01:27 PM
Replies: 19
Views: 2,121
Posted By Don_Juan

Thanks guys! Talked to Whipple and they suggested...

Thanks guys! Talked to Whipple and they suggested PCM has an issue. Sending it in today.
Forum: General Q & A
07-18-2024, 08:22 AM
Replies: 19
Views: 2,121
Posted By Don_Juan

@AP700. I do have power on the purple wire at the...

@AP700. I do have power on the purple wire at the ignition with the key on. No fuel pump prime. Engine will crank strongly, but not start. I believe the PCM creates ground when it is powered up. In...
Forum: General Q & A
07-17-2024, 08:57 PM
Replies: 19
Views: 2,121
Posted By Don_Juan

I don't think so. I also tried it disconnected....

I don't think so. I also tried it disconnected. I'll recheck.
Forum: General Q & A
07-17-2024, 06:54 PM
Replies: 19
Views: 2,121
Posted By Don_Juan

Whipple 496 stopped running - scanner says no ECM

I have a 2007 Whipple 496 with PCM 555. Going through the five zone the other day, my engine made a "pop" and stopped running. Before and into the 5 zone, oil pressure, fuel pressure, engine temp...
Forum: Prop Talk
09-29-2022, 12:37 PM
Replies: 46
Views: 13,611
Posted By Don_Juan

Did you run the 5 blade yet?

Did you run the 5 blade yet?
Forum: Prop Talk
09-27-2022, 11:50 AM
Replies: 46
Views: 13,611
Posted By Don_Juan

I don't think he was throwing darts ... someone...

I don't think he was throwing darts ... someone gave him some bad advice. Turns out he needed more throttle planing, tabs and drive down. That was the "slip" issue. I suggested a 5 blade prior to...
Forum: Prop Talk
09-27-2022, 11:42 AM
Replies: 46
Views: 13,611
Posted By Don_Juan

77! That's better. I thought you might be running...

77! That's better. I thought you might be running with the tabs down some. I assume you're running with the trim up some, but not enough that you're losing bite? Curious to see the rpm with the 5...
Forum: Prop Talk
09-26-2022, 08:07 PM
Replies: 46
Views: 13,611
Posted By Don_Juan

Awesome. Glad that helped you. Save gas?? Then...

Awesome. Glad that helped you. Save gas?? Then you're in the wrong sport! 😂 Did you try to open it up too? Tell you what, if that Max 30 doesn't work, I'll buy it for $750. Just LMK.
Forum: Prop Talk
09-26-2022, 01:03 PM
Replies: 46
Views: 13,611
Posted By Don_Juan

All the way down for faster planing. Depending on...

All the way down for faster planing. Depending on the boat, I bring the tabs all the way up once it planes and then the drive. I didn't use tabs while running, just one tab if there was a cross wind.
Forum: Prop Talk
09-26-2022, 12:06 PM
Replies: 46
Views: 13,611
Posted By Don_Juan

Ok. A shorty can create problems you describe. I...

Ok. A shorty can create problems you describe. I wonder if you're not giving it enough throttle. I would firmly bring it up to 3,000 rpm (not full throttle not easing into it), let it plane, then...
Forum: Prop Talk
09-26-2022, 09:44 AM
Replies: 46
Views: 13,611
Posted By Don_Juan

@Dagwell: you're saying after your boat planes,...

@Dagwell: you're saying after your boat planes, then rpms go up about 1,500. I think you mean ventilates, not slips. I believe slip is the difference between the theoretical forward thrust vs. the...
Forum: Prop Talk
09-26-2022, 09:13 AM
Replies: 46
Views: 13,611
Posted By Don_Juan

A higher pitch prop, 30, may help with your slip...

A higher pitch prop, 30, may help with your slip issue and speed, especially a 5 blade. My Daytona planes faster, has less slip, lower rpm at cruise and similar or faster top end with a Max5 or...
Forum: Prop Talk
09-25-2022, 08:26 PM
Replies: 46
Views: 13,611
Posted By Don_Juan

A 26/27 Daytona runs low 80s with that power. I...

A 26/27 Daytona runs low 80s with that power. I would think about 74-5 mph is about right for this boat. I would still try a different prop.
Showing results 1 to 25 of 36
 
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