Friday, February 27, 2015

Gearbox Stripdown - Part 1 - Getting Started

<This post is part of the 'Winter Project 2014/15 - (Gearbox Refurb)' project>

As I mentioned in the previous post, I have three gearboxes to work with and each has its good points and bad points. One has a very good housing which has already been stripped and cleaned. Another has a good differential, while the other one has the best gears. So the plan is to make one good gearbox using the best bits of each.

Thankfully all three of the gearboxes I have are all the same type, so hopefully all the parts are interchangeable. For me, this is quite a large job and a lot to get my head around, so I have split it into a number of parts.


Monday, February 23, 2015

Differential Stripdown

<This post is part of the 'Winter Project 2014/15 - (Gearbox Refurb)' project>

With the engine block pushed to one side for a while, I need to get to work on getting the transmission sorted out. I have been buying a selection of engines over the last year and have three gearboxes to choose from, two of which have diffs.

Each of the gearboxes has its own good and bad points, so I decided to cherry pick the best bits from each and build a new gearbox out of those parts. That way I get the best of all three and also learn about gearboxes in with the deal, starting with the diff.


Friday, February 20, 2015

Camshaft and Oil Pump Install

<This post is part of the 'Winter Project 2014/15 - New Engine Rebuild' project>

Cracking on with the engine build, it's now time to put the new camshaft in place. Also, because the oil pump is driven by the camshaft and also holds it in place, it only seems fitting to put that in place too. Both these are new items having been purchased in a recent shopping spree.


Sunday, February 15, 2015

Putting the Pistons In

<This post is part of the 'Winter Project 2014/15 - New Engine Rebuild' project>

In the last post, I managed to get the crank in without too much drama. Still high on the excitement of that achievement, I now need to move on to putting the pistons in. This should be a fairly straight forward job, however the only snag is that I don't have a piston ring compressor. As this is a fairly
critical tool for the job, I thought I would try to make one...
Testing on the test engine.

Saturday, February 14, 2015

Crankshaft Install

<This post is part of the 'Winter Project 2014/15 - New Engine Rebuild' project>

Now that the Camshaft bearings have been renewed and the block painted a rather fetching shade of red, the engine is ready to receive its freshly re-polished crank. This is a job I have been dying to do for ages, but as exited as I am, there are a number of things that are critical and I simply cannot ignore.

One of which is taking great care not to scratch or damage the new bearing surfaces of the crank journals during the process. The second is to make sure that everything is well lubricated and finally, it's very important to make sure that no bits of muck or debris gets in while I'm working, or we're right back to square one.


Tuesday, February 10, 2015

Timing Belt Kit

<This post is part of the 'Winter Project 2014/15 - New Engine Rebuild' project>

Back in this post when I went 'man' shopping, that's not shopping for men, but rather shopping that doesn't make men want to die of boredom, I was undecided as to what timing chain to buy. At the time I was torn between using one of the single chainers that I already had, or upgrading to a duplex chain. Well it seems that the Mini gods have been shining and made the decision for me - Neither!


Wednesday, February 4, 2015

Painting the Block

<This post is part of the 'Winter Project 2014/15 - New Engine Rebuild' project>

After all the prep work on the engine block, this is where the transformation starts. Everything so far; building the clutch, polishing the crank, getting the camshaft bearings sorted, all that work will go unseen. But this is where I get to do a job that will actually be seen. Well almost, if you lift the bonnet up!


Tuesday, February 3, 2015

New Camshaft Bearings

<This post is part of the 'Winter Project 2014/15 - New Engine Rebuild' project

In the previous post, I talked about my choice of camshaft and how it compared to the one I traded in, but now I turn my attention to where it sits in the block. When I bought the block, it was in pretty good condition and most of the things that needed doing to it were already done. Except for one that is... I noticed that the camshaft bearings were a bit rough around the edges, or to be more precise, a bit rough around the surfaces.


Monday, February 2, 2015

New Camshaft Comparison

<This post is part of the 'Winter Project 2014/15 - New Engine Rebuild' project>

Recently I was shopping around for a new camshaft, now you would think this would be a fairly straight forward affair: "Can I have a camshaft please, this one is knackered" - "Certainly sir, here you go". That's kind of how I expected it to go. But it seems that buying a new camshaft is far more involved than that. Firstly, they don't make the standard 998 camshafts for pre-injected engines anymore, and secondly, of the camshafts they do still make, how do you know which one to choose? Would you like a ST510? Or a ST948? How about a ST731?? No, maybe a ST544? Or maybe even a scatter pattern camshaft!!! None of those, don't worry, there are still dozens of others to choose from!