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Showing posts with label replacement. Show all posts
Showing posts with label replacement. Show all posts

Monday, October 08, 2012

Long Update

So I haven't updated in a while, mainly because of a LOT of life changes that I may or may not get around to posting over on Drunken Ramblings, but regardless I'm here updating now so be happy and stuff.

My last posts were about the 850 and the maroon project car (hereafter referred to as 'moomoo'), and possibly about Beige Betty. Well the 850 is gone, the project car is being torn apart, and Betty is pretty much the same as before, albeit now with an AW71 and a new rear main seal (and leak-free as a result!) My current DD is the Yellow Yeti, which has been referenced before as a Yellow Box. It has some fairly significant upgrades, one of which is a full 3" exhaust made by yours truly. However, at the moment it's got some issues, the biggest of which is the lack of reverse.

The transmission itself works fine - as in, it shifts in and out of gears without catching and going forward is fine. However, put it in reverse and it just sits there and spins. If you're on a FLAT (and I do mean _flat_) area, it'll start to think about going backwards, after a while. So I researched it and it turns out there's a cone clutch in the overdrive, and this is the cuprit in this situation. Oddly enough this same overdrive clutch completely failed in my first Volvo, a 1981 242, which necessitated replacing the transmission as well. So this weekend (well, my weekend, from wednesday to saturday) will be spent pulling the running gear from moomoo and transplanting it into Yeti.

This will include the transmission, flywheel, clutch, throwout bearing, pressure plate, driveline, rear end, and speedometer. Why the rear and and speedometer, you ask? Well because the '83 has a cable-driven speedo, and the '86 does not. I could swap out the tailshaft, but Yeti's rear end has a rumble that I think is bearing related, so I'll just do the whole thing. Plus I want to tap into the signal for the speedo for a HUD project, and having all of that in the car for testing will make it easier to actually do it.

And then there's the flywheel and clutch. When I bought moomoo I had to do the clutch, so it should still be in fairly good condition. We'll see though, and I'm hoping and praying (though research seems to suggest that they'll interchange) that the B230 flywheel will fit the B23, because the B230 flywheel is different and the clutch won't swap without it.

What else? Oh yeah, while I'm in there I'll replace the rear main. And probably pick then engine up a bit and pull the oil pan to replace that gasket as well, because it's leaking badly from *somewhere*, and while the pan is off I should probably drill the boss for a turbo oil return... And do the front seals too, maybe even drop in the B cam from the '86. And do the timing belt. You know, basic stuff. While completely replacing the majority of the drivetrain.

Yep, totally doable in a few days, right?

Saturday, January 15, 2011

Valve replacement success!

Alrighty!  It took me forEVER, but it's done.  There were a lot of little things that I learned along the way, all of which made the whole process drag out.  Taking the head off wasn't the biggest problem, really.  That was done in the first day (saturday), and honestly if I'd had the valve and the tool, the valve would have been replaced in that first day as well.  But, of course, things don't always go as planned.  The valve was definitely burnt, however, so at least I was correct in my diagnosis.

Getting the replacement valve was another story.  I had a whole engine in the back garage I was attempting to disassemble for this purpose, but I had an issue with the head bolts.  Specifically that one of them rounded the head off, and so I couldn't get the head off the block, and thus couldn't get the valve out of the head to replace the burnt one in this engine.  Starting the second day (sunday), this was my mission: to get the head off and retrieve a valve.  After a sufficient application of force and a lot of swearing, the head was lopped off and the valve was successfully acquired. I then used my $0.21 tool to remove AND install said valves.
Then it was reinstall time.  I probably should have lapped the valve while it was out, but I didn't.  If I were to build an engine and tear it down completely I definitely would have done so, but in this case I was just getting shit done.  Right about now (late monday) I found out that I had 10 new head bolts (out of 12) that were about an inch shorter than what came out of the engine.  Everything about them was exactly the same except for the length, so I thought that perhaps there had been a design change and I didn't worry about it.  Right up until I was torquing them up and 2 of them pulled out of the block.  That didn't make me happy.  I got on the horn to iPd and told them about the issue, and since one of their techs lives close to me, I asked if he could possibly bring them home to trade me for the ones that were wrong.  He did, and I got everything installed the next day (tuesday).

It took me some time to figure out the timing marks on the crank - apparently it's either a microscopic spot on the valley of the crank gear, or two tiny marks on two hills of the gear.  My car is a '97, which means it SHOULD have the spot on the valley, but it didn't and did have the spots on the hills ('98+).  After researching for a couple of hours to determine that yes, indeed the two hill marks  were correct, I got the thing timed correctly and started it up.  And then found out that the oil drain for the turbo wasn't seated in the block properly so it was draining out onto the floor.  Son of a...  So come Wednesday I got the car up on stands, cleaned up the floor a bit to soak up the oil, removed the drain tube and got it reinstalled correctly.  A quick fix to the power steering pump - damned thing started leaking THE DAY I brought the car to my parents to fix - and we were off to test it out and make sure it didn't throw any codes.  No codes were thrown, car ran and drove great, and so it was off to get it emissions tested.  Which she passed with flying colors, so the 850 is back on DD duty for the girlfriend.  While it was down I tested out my Thor wheels on it - I love the way they look but the tires are WAY too big, so I had to take them off before we went a driving.  Time for some Volans, methinks.  Now I'm not quite so apprehensive about working on the newer cars, so when I pick one up I'll be able to modify it to my hearts' content.