Author: rhanumaiah

MerCruiser Intake Manifold Removal

Mercrusier 5.0 MPI Engine
February 1, 2021
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MerCruiser Intake Manifold Removal Process -Starboard riser and exhaust manifold removal Process To Summarize the intake removal process, we are going to start the by removing the risers and exhaust manifolds. Starboard Throttle Plate, Interlock, and Injectors Harness Removal First, start by removing the throttle plate and related parts. Next, I disconnected all the injectors from the wiring harnesses. Secondly, I remove the electrical connectors. there is a grey clip…

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How to perform a Leak Down Test

Leak Down Test
December 22, 2020
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Here is how we Perform a Leak Down Test So after pulling the plugs and inspecting them as outlined in a previous post. Now we are going through the process of how to perform a cylinder leak down test. I have never worked on an engine with this many cylinders so this should be interesting! Everything With this Boat Is a Struggle I have found that working on this boat…

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Pull the plugs and see what is going on in the cylinders

Number Eight Plug
December 22, 2020
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Pull the plugs When we pull the plugs, all appears to be good with the plugs. The Engine is running rich but not a single plug that looks steam cleaned or new, which is a good sign for valves and the cylinder walls. It also appears there is not a head gasket failure or water intrusion into the cylinder that way. It also means that there is a good possibility…

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Draining The Oil And Water

Mercruiser 5.0 MPI Oil
December 22, 2020
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Draining The Oil and Water First, I started by draining the water is left in the cooling system. There is very little left, but there is still some. As stated prior, I do not want to start this motor again until I get the old oil and water out and find out how it got there. Next, I drain the oil from the motor. This oil is thick and won’t…

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