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I have been reviewing all the videos in preparation for a complete maintenance of the raw water side of my twin 6BTA-370 engines, including the replacement of R/W Pumps with SMX 1730’s, New Gear Coolers, Combo block /Fuel Cooler removal, and After-cooler/Heat Exchanger maintenance.
A couple of questions that I couldn’t find on the forum:
1). After-cooler Maintenance Video – What are the twin bolt specifications that were used to mount the After-cooler shell onto the vise in the shop. Looks like 4-6″ length from the SMX video, unsure of size, metric? It’s on the backside of the after-cooler, so I wont have access until removal.
2). Fuel Cooler removal video – Brendan makes a very strong point about not forgetting to install the flare cap over the old oil pressure tube, as part of removing the combo block. Would you recommend a thread lock (like Loctite or similar), to ensure that this flare cap doesn’t accidentally loosen with vibration over time?
In my case I have very difficult to access my port side engine, and want to ensure that this potential single point of failure is securely fastened.
Thank You
Kevin
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Vessel Name: Tenacious
Engines: 6BTA 5.9 330's - "Seaboard Style"
Location: Long Island, NY
Country: USA
The turbo/exhaust flange bolts are 8MM, I’m thinking those aftercooler mount bolts are larger, so could by the 10MM’s….
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Metric — 8 MM or 10MM–I should know that–I need to check……..It sucks being 74
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- From memory the thread is 3/8UNC. Regardless, you can actually use the very bolts you removed to hold the housing in the vice. Thread them in someway and line up the flats then place in the vice.
- In my case I used a little Rectorseal. It’s supplied in the SBMAR kit and mine are leak free.
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