Irwin 32.5 Ketch
Join Date: Mar 2014
Location: New Britain
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Re: Perkins 4-107 Overhaul
WTF am I Doing Here?
Itís winter 2014 in Connecticut and Iím on my 1972 Irwin 32.5 Ketch. Itís cold, but I only have a few months to get ready for my third season with the boat.
Letís start with the issues Iím having:
Rear Oil Seal:
Since day 1 Iíve had a slow oil leak near the rear of the engine. Easy enough, just drop a pan or bilge pad under it and change it out every few weeks. The leak started to get worse over time and then it became an actual issue. Motoring for just a few hours would dump at least a quart in the bildge. I got tired of shop vacuuming and scrubbing every time I came back from a trip.
You know that burning in your nose and eyes every time you run into the galley for another drink? Well I realized thatís not normal and the 40 year exhaust system needs some changes. Mostly hoses, so weíll save that for last.
Like a fungus, this stuff continues to spread. It didnít even look that bad three years ago, now itís EVERYWHERE! So as Iím removing parts, Iíll be inspecting cleaning and repainting as needed.
As most of you may already have noticedÖ the engine is over 40 years ago and from what I hear, they stopped making parts for the 107 back in the 80ís (not actual fact). So Iíve spent most of my time online and have identified a few places that have 4-107 parts.
Nothing better than leaving the marina and having your engine die right as youíre navigating the mooring field. Air in the system, fuel cut off, whatever has been a problem for a while. Iím hoping itís the lift pump, which I actually did find a replacement for. If not itís the fuel pump and Iím not going to touch it until last, if needed.
And there are a number of random leaks around the engine that Iím hoping will be addressed when I replace the gaskets.
Iím going to address all of these issue in the next few months. Basically do an in boat overhaul without touching anything inside the block so I donít mess up the engine timing.