Gazzar Posted December 30, 2019 Share Posted December 30, 2019 I'm rebuilding the engine that's going in my lightweight. Is it worth a separate thread in the series forum? I know it's a 110 engine, but the conversion would apply to the 2286 the 2.5 is based on. And, it's going in a series 😁. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted December 30, 2019 Share Posted December 30, 2019 Welcome it. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 Goody! Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 Okay then. The first thing it to get the engine on the stand. Then remove the crank shaft nut and pulley. That's the first time that puller worked! Then remove the water pump and timing cover. And then the timing chain is exposed. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 Off with his head! Dreadful pun, I know. Removing the rocker cover is really easy. And it's odd using metric spanners and kit, but I like it. Then the first of the clamp bolts. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 This engine is funny, it's been stored for ages, and some bits of it are really clean and oily, others are showing surface corrosion. It turns over really easily, though, so I am not worried there is something major wrong with it. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 The rocker gear is held by the head bolts, I think, I had to remove them to remove the gear anyways. So I removed all the head bolts on the reverse order to the tighten sequence. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 All that remained is the oil supply pipe. I think I'll get a new one of those, it's quite battered. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 Having a bench ready, covered in cardboard, I was able to dislodge the head and lift it onto the bench. What do you think? What is that crud!? Is this carbon? Or is it new valve time? Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 The bores are filthy, but undamaged, I hope! No 1: No 2: No 3: No 4: Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 We'll see. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 And then cam followers, various parts, And finally the sump: Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 The crank looks rusty, but the bearings are covered and should be fine. I hope. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 The next task was the timing chains and sprockets. This wasn't easy. First, I measured the wear, it was 21mm, 26mm is replace, 15mm is new. I'll replace. Everything. Removed: tensioner and slipper pads. Quote Link to comment Share on other sites More sharing options...
landroversforever Posted December 30, 2019 Share Posted December 30, 2019 Count me in for a watch! Quote Link to comment Share on other sites More sharing options...
Tanuki Posted December 30, 2019 Share Posted December 30, 2019 Good to see you're getting down-and-dirty into the block. Do you know anyone who can acid-tank 'pickle' it? It's the best way to get rid of decades of sludge in the oilways and corrosion in the water-passages. A pickle will give you a block as near as clean as it was when it was manufactured. Be aware though that a 'pickling' can erode the surfaces of the camshaft-bearings - so you would be well-advised to have then pulled and replaced. Do all this properly and you'll have an engine that will be good for decades-to-come. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted December 30, 2019 Share Posted December 30, 2019 I pulled a horrible old sump out of someone's garden and had it acid pickled, I've never seen anything so shiny in all my life. Watching this with interest! Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 I'll see what it looks like when I get that far! Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 If it doesn't need a rebore, then I'll try avoid changing the cam bearings if they're okay. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 The sprockets were tricky to remove. The cam sprocket was threaded to take bolts so, knowing the thrust plate is tough, I used them to jack the sprocket off. The crank sprocket was tighter. In the end I warmed it with the torch (very gently, hot to the touch but not burning), and sprayed freeze spray on the crank to get it going. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 To remove the cam I had to loosen the grub screw hidden under the gasket at the oil filter. This allows the distributor drive to be lifted out. The cam then is lifted out the front of the engine. 1 Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 I had planned on changing the cam anyway, but it's totally wrecked. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 Yes, the lobe is missing. Both lobes on cylinder 4 are gone. The cam followers may be involved. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 The cam journal looks fine at that end, but I'm worried that there is an underlying cause that I've not located, blocked oil gallery or bearing occluding the oil or something. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted December 30, 2019 Author Share Posted December 30, 2019 It could just be rust or something. Though I don't believe that. The tappet might have been in the wrong way around, perhaps? Quote Link to comment Share on other sites More sharing options...
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