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Messages - ube

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1
Engines / Re: Extension shaft
« on: March 25, 2020, 08:33:34 AM »
Well done and good progress for you. I meant to say to remember to mark the gear before removal so the timing does not get upset. I had an engine where the timing marks will never align as it had the wrong model cam gear inside but same size and teeth number. Luckily I did make my own marks before stripping it down.
[/quote........oh yeh I've made that mistake before so yep the center pop was out doing its thing👍]

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Engines / Re: Extension shaft
« on: March 24, 2020, 02:48:25 PM »
Thanks guys for taking time out to help me......no doubt I'll be back picking ya brains.....hope ya all stay safe n well in these hard times

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Engines / Re: Extension shaft
« on: March 24, 2020, 02:45:36 PM »
Slide hammer👍

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Engines / Re: Extension shaft
« on: March 24, 2020, 02:42:20 PM »
Yes at last

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Engines / Re: Extension shaft
« on: March 24, 2020, 11:32:56 AM »

Yeah I agree they are one piece but I'm thinking there could be a shaft, maybe a taper one inside the extension shaft. I have one on an engine like that and come to think of it, it's a screw fitting. You turn the extension shaft opposite rotation and it unscrews. There is a thin threaded section that locks them together on the taper.  When the engine is running it's always tightening them although with a good couple of wacks on the pulley that sits on the extension, it breaks free and comes apart quite easily.  The thread is only about 10mm. Not a lot but it has no trouble holding 12 Hp.  Taper is the key i'd say.

I have no idea what this engine is like but mine has a stubby taper shaft for a gen head. The extension takes it back to a standard 3/4" in this case.

Might be worth a try unscrewing this extension? If it won't pull, that could be why?



Give the thing a few belts in the holes with some wood and a hammer or a soft drift opposite to engine rotation and see how you go.
.....its a lister ha2.....there is two locating dowels so it's not going to screw and yeh if I tap it with the mallet it does move side to side....if I can get away with it I dont want to use heat because of the gear behind it....the 4 holes for the oil spinner bolts are unthreaded but they are the right clearance size for a 12mm tap so I can tap them and hopefully use the slide hammer......I will keep you guys posted

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Engines / Re: Extension shaft - Yes, hammers aside
« on: March 23, 2020, 09:45:44 PM »
Hi Ube

Yes, you are missing that cast iron is fragile. That extension shaft has the notch and pin, and it must come off straight.

Cheers
VP
......so its steady away with the slide hammer......gently does it......not like a NCB fitter😉

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Engines / Re: Extension shaft
« on: March 23, 2020, 04:07:13 PM »
This is the shaft I'm having problems with ....was going to run a 12 mm tap down the holes that the oil spinner locates then using 4x12 bolts and a plate attach a slide hammer and try removing it this way....unless I'm missing something?

8
Engines / Extension shaft
« on: March 20, 2020, 09:57:20 AM »
Morning everyone.....I have a lister ha2 in my narrowboat and I am trying to remove the crank...my problem is I can not remove the extension shaft...I've removed the 4 bolts that hold the oil spinner and shaft in place but can i for the hell of it remove the shaft.....am i missing something here?

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Things I want to Buy / Rocker cover caps
« on: August 22, 2019, 10:38:41 AM »
I'm looking for rocker cover caps for lister HA2...thanks

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