Month: March 2021

MerCruiser Starboard Head Reinstallation

MerCruiser 5.7 Cylinder Head Refreshed
March 30, 2021
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Steps to MerCruiser Starboard Head Reinstallation In preparation for MerCruiser Starboard Head Reinstallation I just got the cylinder heads back from the machine shop. First, the heads were clearly from the original engine. They were in rough shape, to say the least. The intake and the exhaust valves, and seals were leaking. Additionally, the valve seats were cut with a drill and a grinding stone. This is apparently not the…

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MerCruiser Risers & Manifold Clean Up

Starboard Risers
March 22, 2021
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MerCruiser Risers & Manifold Clean Up Process We are going to clean up the MerCruiser Risers & Manifold. This is in preparation for getting the Cylinder heads back from the Machinist. Additionally, this is going to require a few items to start. Flathead Screw Driver Razor Blade(s) Plastic Steel Safety & Scraping 3M Scotch Brite 18730 & Drill Tap/Chase 1/4-20 Penetrating Oil / Rust Preventer Dust Mask Gloves Separating the…

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MerCrusier Upper Intake Manifold – Reconditioned

Upper Intake Reconditioned
March 17, 2021
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Upper Intake Manifold So, with the cylinder heads at the shop. I took some time to clean up the upper intake manifold. First, the paint was peeling from the cast aluminum on the upper intake and the throttle body. So I spent a little quality time with the sand blasting cabinet with aluminum oxide. This is a cheap Harbor Freight Cabinet, I will need to modify it if I keep…

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MerCruiser Port Cylinder Head

March 2, 2021
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MerCruiser Port Cylinder Head Removal Process Port Cylinder Head Removal – Exhaust Manifold We will start the MerCruiser Port Cylinder Head Removal by removing the wiring to to “Lube” bottle. Much to my dismay, the label came off the wiring! Maybe its because the boat sank in saltwater? Secondly, we will remove the exhaust manifold bolts and coolant connection on the manifold. there are four long 14 mm bolts that…

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