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Post by mikuni on Jul 18, 2012 12:09:18 GMT 12
The engines are entirely different, so the gearbox shouldn't fit the slant 2.3l but I guess anything can be made to fit if you try hard enough.
I don't know of any C20XE (early Opel twincam) engines for sale in SI but there is one here in Hamilton at pick a part. Looks tidy too. I might grab the head if no one has taken the engine in a few weeks and the cars still there. Technically that's all you really need anyway as it will fit the VN block (but internals are different).
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Post by gordo on Jul 19, 2012 18:13:07 GMT 12
I would prefer to keep the Viva gearbox just to make things easier. Done naught on the engine this weekend. The Viva gearbox doesn't fit the Chevette, and vice versa, as the tailshafts and housings are a different length - unless you fancy having a custom driveshaft made? |
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Post by zep on Jul 23, 2012 9:10:16 GMT 12
Brad, perhaps he's talking about the engine you used. There are plenty of these engines up here - at least 4 cars at Pick a Part Avondale, and that's the worst one!
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Post by gordo on Jul 23, 2012 18:53:52 GMT 12
Didn't even think of it, you are talking about the 1059/1156/1256 Viva engine's gearbox, not the overhead cam 1600/800/2000/2300 engined Viva's gearbox?
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dunc
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Post by dunc on Aug 28, 2012 21:21:45 GMT 12
Glad to say this beast is finally back on the road officially.
Taken me the last 9 months since i bought it though to get it running and roadworthy - mainly just fixing the seized engine. Great to have it as a fun commuter hack. Its been off the road since 1999.
The recon engine is running sweet. The electronic ignition kit i bought off trademe works well. Rust repairs sorted (for now - only just welded patces over the washer bottle area holes until im ready for a full re-spray). Been getting a few people coming up to me and asking what type of car it is.
She is staying pretty original (other than the hotwires) and the other project car will now see some attention getting converted to a mild HS replica and put back on the road too. Still looking for a 2.3 gearbox and 5 speed if anyone knows of any...
As soon as I work out how to put pictures on here i will post up photos of the cars. Wouldnt be surpised if someone may recognise them??? They are both originally from Canterbury.
Cheers
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Post by gordo on Aug 28, 2012 22:26:13 GMT 12
Glad to read it - while they're not a power house, they can be very peppy little engines.
I had a stock 1256 on the chassis dyno a few years back and it was supposedly 36.6kW - 48 hp - at the wheels. You should have a fair bit more.
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dunc
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Post by dunc on Nov 18, 2012 21:32:16 GMT 12
THe road going chevette has officially nuts itself. Was driving it on the weekend and it flat died on me.
discovered that the gear on the oil pump has chewed itself out and alos taken one of the worn gear lobes on the cam off as well. Had only done probably 600km since the total rebuild, which included a new oil pump kit as well.
Any idea what the cause may be?
THe oil pump shaft seems to have a lot of sideways play in it. Seems odd considering it has just been rebuilt. This is the offset distributor drive model. Never had any problems with low oil pressure. Has been going really well until now.
Pretty annoyed as spent huge $ and time on the engine, and now it needs to come out and get stripped down again. Hoping that the chewed out bits of gears arent through the rest of the engine. Also gotta find new oil pump and now camshaft too.
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Post by gordo on Nov 18, 2012 22:09:18 GMT 12
Well, that's a complete biatch!
just to clarify, it's worn out one of the cam lobes and/or the gear that drives the oil pump and distributor?I could have been a problem witht he oil pump kit but, TBH, I don't see it happening unless there was something wrong with it, or it sucked up some debris that cauused it to partially lock up. Strip it down and have a good look at it for any damage and strange wear patterns.
I'm not aware of any changes in the camshafts between late model, early model Chevettes and the 1256 as used in the HC Viva, so that may open up your options a little. I'm pretty sure I mentioned it (maybe on other threads), but it is very important the cam lobes and the camshaft followers are given a good coating of anti-scuff lubricant or, at the very least, a molybdenum grease (CV joint stuff is good as it is high in the moly') as the only lubrication they get is splash from the crank' - it's also very important that, when possible, the followers are replaced on the lobs they came off as they will have worn in to each other and mixing them means they will have to wear in again and, in some cases, they never do and just chew each other out - I suspect that may have happened if you have a chewed out lobe and follower.
I still have a brand new, boxed, offset oil pump if you're needing one ($80 + P&P) and wouls strongly recommend replacing the distributor bushes - there are normally 2 1/2" ones that you can pick up from a auto sparky (I think they're also used in starter motors), but there's room for three in the housing, which should give much better support - give them a soak overnight in some oil before fitting so they can absorb some oil into the sinter gaps.
Hopefully the filter picked up any crap from the pump before it got into the bearings and oil feeds. Don't forget to give the pickup a damned good clean out, especially the mesh, before re-using (pumps don't come with pickups).
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dunc
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Post by dunc on Nov 19, 2012 16:19:34 GMT 12
Thanks Gordo. Yeah just realised the typo in my post - i meant to say "worm" gear lobes, not worn. The gear that drives the distributor shaft. Ill take that oil pump off your hands if youre happy to part with it and put it in the post. Need your details so I can send you a cheque or something. Could you flick me a text on 021 341 542. Hopefully not contravening any rules by posting my number? hopefully picture of the car is attached to this, as well as a picture of my other project one sitting in a paddock (now my only running one... might get promoted to #1 car soon). Cheers Attachments:
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dunc
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Post by dunc on Nov 19, 2012 16:23:04 GMT 12
Sweet - finally sussed out to put on photos. heres my other one - a runner but not yet on the road. this has got a mean little 1256 in it - sounds like it has been worked a bit. This ones going to get a 2.3 as soon as i can get a gearbox and bellhousing. Attachments:
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Post by gordo on Nov 19, 2012 17:21:16 GMT 12
Just send me a PM with your name and address - like I've sent you one.
No worries posting phone numbers and making sales, etc, here - we're all on the site because we are interested in the cars and keeping them on the road :-D
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dunc
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Post by dunc on Dec 12, 2012 17:20:00 GMT 12
So Ive got an oil pump to hand but not sure if its right. It seems to be a lobe type pump instead of the standard pump with 2 pinion gears on it. And has no obvious relief valve on it. It looks different - but the shaft and drive gear look the same as the original pump. Anyone seen or used one of these before and know if they work OK? I havent trial fitted it yet as i havent got the engine out yet.
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Post by gordo on Dec 12, 2012 20:28:11 GMT 12
I sent you a PM, but may have been a better idea to post here, so I'll copy it over. It may pay to allow a couple of days for the engine work, rather than hurry and make a mistake - like getting the ****ing sump gaskets properly in place. I'm looking at the last pump I have, that's not in an engine, and if it's the same design, on the bottom/plate there's a raised section that leads to a sort of round protrusion that has a crescent shaped opening at the top/alongside the mounting flange. If so, that's the pressure relief valve body and vent. i assume you also have this type [image] www.ustudy.in/imagebrowser/view/image/4187/_original [/image]and this was what the old one was [image] www.ustudy.in/imagebrowser/view/image/4186/_original [/image] Source, if they don't load - www.ustudy.in/node/4185Different manufacturors may use different designs - as long as the drive, mounting and pickup are the same, it'll be fine. Don't forget to change the filter and, personally, I'd take off a cap or two to make sure no debris from the pump got past the filter into the poilways - be a b***h if some did and you had to pull the engine down again. |
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dunc
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Post by dunc on Dec 13, 2012 21:31:08 GMT 12
Thanks gordo. Yes those links describe the two types of pumps. And i can see the relief valve as you described it on the different pump. Ill give it a go. Hopefully will get some ways to having engine out this weekend.
Dunno if you have seen it but theres a viva on trademe with a worked 2.3 in it at the moment. Would love that for my other chevette but the price is pretty high. Comes with what looks like dellotos and celica box.
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Post by gordo on Dec 14, 2012 1:48:01 GMT 12
Must have spent close to half my time with the Post Office/Telecom working on those in the CF Bedfords.
Craig Brock was interested in one of these at one point and I think there was another chap with one - might be the same chap?
Personally, unless you wanted to stay GM/Vauxhall, I'd have to consider something Japanese - small, light with a lot more potential.
As for the 1256, can't emphasis enough the importance of making sure it's clean internally, as a speck of debris in the wrong place can quite ruin your day.
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