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Old 13-01-2020, 11:16 PM   #1
Fuchs915
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Default Leave engine unused after rebuild?

I have an engine that I will rebuild for a project I am working on and wonder if they can be rebuilt and then not used for a while. I am trying to get my head round the order of the jobs to do during the winter and also free up some space. It might be 5-6 months before the engine gets put in/run so could I do the rebuild now and just leave it sitting or would this not work? I am wondering if the assembly fluids / pastes would remain effective in protecting engine on start up. If the advice is do it later, that's fine, as I said just trying to get various jobs done while the weather isn't great and days are shorter.
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Old 14-01-2020, 08:46 AM   #2
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Get it built, even to a long block (no tinware or fan), and floor run it to break in the cam (if you have to - old cam and old lifters don't need this).

With no load on them on a workshop floor they don't get silly hot with 2 x 10 minute runs at medium revs.

Once it's either has 20 minutes of running in on the floor in 2 x 10 minute sessions, drain out the oil, wash out the oil strainer ( in petrol) , then refill the engine.

Take the plugs out, turn it over on the bottom pulley bolt with a ratchet, about 40 times. Spray plug tips with WD 40 and put back in.

Dizzy cap off - spray the innards with WD40, replace cap.

Cover engine with sheet to keep the condensation off it. Job done.
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Old 14-01-2020, 06:51 PM   #3
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Thanks MIB, that's very helpful. It's a new cam and followers so will need to be run in. I should have the gearbox mounted soon so can build up the engine and run it on the chassis.
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Old 15-01-2020, 11:38 AM   #4
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If any vwac engine is left sitting around for ages, apart from doing the usual things to protect it from corrosion, always remove the rocker shafts so valves are seated and springs are not left compressed.
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Old 25-01-2020, 06:50 PM   #5
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I would cover over the engine and plug any exposed holes to prevent dirt/dust/nuts/bolts/grinding sparks etc from getting in.

Better to be safe than sorry!!
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Old 25-01-2020, 07:18 PM   #6
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I would cover over the engine and plug any exposed holes to prevent dirt/dust/nuts/bolts/grinding sparks etc from getting in.

Better to be safe than sorry!!
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Old 25-01-2020, 08:07 PM   #7
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If it's only going to be a few months then I don't see an issue. I wouldn't bother running it on the floor, but I would thoroughly pallet wrap it, together with some desiccant packs, to keep it dry and to prevent anything getting inadvertently dropped into any orifices.
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Old 26-01-2020, 01:05 AM   #8
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Quote:
Originally Posted by Fuchs915 View Post
I have an engine that I will rebuild for a project I am working on and wonder if they can be rebuilt and then not used for a while. I am trying to get my head round the order of the jobs to do during the winter and also free up some space. It might be 5-6 months before the engine gets put in/run so could I do the rebuild now and just leave it sitting or would this not work? I am wondering if the assembly fluids / pastes would remain effective in protecting engine on start up. If the advice is do it later, that's fine, as I said just trying to get various jobs done while the weather isn't great and days are shorter.
Cheers
Kevin
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