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Heat Exchanger Replacement for 8.1 Gas Crusader

Anything related to the operation of your boat. Steering, Bilge Pumps, thru-hulls, bottom paint, etc.

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denpooch
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby denpooch » December 21st, 2018, 9:53 am

Nauti I looked into an exchanger for 6.0 Crusader and 'Lighthouse Marine Supply' down here in Riverhead NY, has them new for $750.00 USD. The brand is 'Seacamp' and they have been selling them for years because they have proven very reliable. However, they are unable to ship to Canada because of problems in the past regarding duties, etc. If you know someone stateside that can take delivery and send it up to you, that might be a good option.
A question for the members...
When I purchased my boat, the starboard engine was overheating and we found that the HE on that side had pieces of impeller in there. Apparently the previous owner had impeller issues and they didn't bother to retrieve the pieces. That engine runs about 10 degrees hotter then the port. I retrieved as many pieces as could be found.
As I have changed out the tranny oil and engine oil coolers (due to a failure of tranny oil cooler) this past season, do you folks recommend being proactive and replacing the main engine heat exchangers which are pushing 13 years old? I am concerned about a failure during the season. What do you think?

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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby bud37 » December 21st, 2018, 10:03 am

Heat exchangers are fairly simple devices, IMO because the engine was runnung warmer beacause of the pieces restricting cooling flow, the exchanger tubes will probably have deposits on them because of the elevated temps it ran at.......now I guess you could flush with some cleaner etc but then you run the risk of leaks down the road......13 years old , they dont owe anything, you get a good price too, seems like a win win. That said it might not be a bad idea to flush the engine etc anyway and then put new exchanger after the flush. Just my opinion.

As said before these investments are expensive and worth keeping up, peace of mind alone is worth that.....good luck with it man and have a good Holiday season....... :beergood:
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby Samuel » December 21st, 2018, 11:30 am


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denpooch
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby denpooch » December 21st, 2018, 5:28 pm

Thanks guys.
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Topic author Canada
nautiyachti
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby nautiyachti » January 8th, 2019, 10:03 am

Hi Cooler, sorry to just respond I got busy with the holidays.

Anyway hopefully you can still speak to your guy, or give me his contact info and I'm happy to give him a call.

The HE is from a 2006 8.1 Liter Crusader Captains Choice engine, OEM part number is RA147039B. The unit roughly measures 21.5 inches long and 5.5 inches in diameter. I have photos if need be.

Thanks again
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Topic author Canada
nautiyachti
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby nautiyachti » January 8th, 2019, 10:33 am

Sorry to just respond Cooler, I got busy with the holidays.

Thanks for offering to help, I'm also happy to contact the guys as well.

Anyway the HE is for a 2006 8.1 Liter Crusader Captains Choice engine. The OEM part number is RA147039B and it roughly measures 21.5 inches long and 5.5 inches in diameter.

I have photos if those might help, let me know, thanks
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Cooler
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby Cooler » January 9th, 2019, 5:42 pm

No worries Nauti - I will be talking with him on Friday. That should be enough info. Will have an update for you on Saturday. Stay warm! 8-) er
Cooler By The Lake
( All weather people have to say this on air, near lakes )
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Cooler
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby Cooler » January 12th, 2019, 2:24 pm

Hello Nauti - Sorry, he does not have that model in stock. Was worth the try though. Just googling through some suppliers online, looks like there are new models in that 900 USD range. Unfortunately, depending on who has one, the used price may not justify the risk, unless you really know who you are dealing with. Did you try contacting Carver? Good Luck! 8-) er
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Topic author Canada
nautiyachti
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Re: Heat Exchanger Replacement for 8.1 Gas Crusader

Postby nautiyachti » January 14th, 2019, 2:14 pm

Hi Cooler,

No problem, thanks for trying, I was leaning toward a new one anyway.

they are around $950 US but with shipping, exchange duties etc. i's more like $1600 CDN.

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