Jumped at the chance to work outside this morning and pressure washed the 140hp block. The core is quite clean, but I wanted to remove some of the remaining grime and PB Blaster that I've been spraying before bringing it into the basement shop. It's not perfect (and won't be without some elbow grease, scrub brushes and Simple Green cleaner) but at least it doesn't smell greasy. Here is a couple of pictures, post "wash" and drying in the sun:
Obviously, I won't be able to get into all the internal nooks and corners until I split the case halves.
Once it was dry, I moved it into the shop and mounted it sideways on the engine stand:
I've decided to try and carefully remove all the studs as it looks like most will have to be pulled and re-installed with LocTite 620 anyhow. So, before splitting the case halves, I'm working on removing them. The easiest way to do this is to double-nut the studs at the top and back the studs out. This is much preferable to using ViceGrips or ChannelLocks and risking damaging the studs. It's a lengthy process for each, but worth the time:
Eight studs to remove and every single one came out cleanly on this side. A couple of them were tight, but a bit of 3-in-1 oil at the base helped. The threads in the block look great, should be good for re-installing the studs later:
Tomorrow, I'll rotate the block over and work on the opposite side studs. Only 11 to remove on the other side and they hopefully go as smoothly as these did. Then I'll review the dis-assembly DVD for direction on separating the case halves.
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Husband, father and 911 dispatcher. Long time pilot with a licence that burns a hole in my pocket where my student loan money used to be. First time aircraft builder. Looking to fly my own airplane.