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Aug 13, 2015 18:09:51 GMT
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I know I posted it in the question section but I got the wrong area
I'm slowly plodding on with the Cortina, I'm putting the head on this weekend and start gapping the rockers
The bottom end was applied with graphogen I think but I'm thinking about putting oil in so I can keep everything from catching and get some pressure prior to 1st fire (whenever that is!)
The question is - do I use regular 20/50 or do I need to put an additive in for the fresh engine?
Will it be OK to leave it in there for a few months while everything is finished and ready to fire?
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1966 Ford Cortina GT 2018 Ford Fiesta ST
Full time engineer, part time waffler on Youtube - see Jim_Builds
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Aug 13, 2015 18:15:41 GMT
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You used to able to buy assembly lube, i had some thick red stuff, but don't know what it was called.
You must still be able to tet something.
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Aug 13, 2015 18:27:49 GMT
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It's got that stuff on the crank/bores and the vales etc. I was just afraid of wearing it out by keep turning the engine whilst timing it up
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1966 Ford Cortina GT 2018 Ford Fiesta ST
Full time engineer, part time waffler on Youtube - see Jim_Builds
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ChasR
RR Helper
motivation
Posts: 10,195
Club RR Member Number: 170
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Engine prep - oilChasR
@chasr
Club Retro Rides Member 170
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Aug 13, 2015 18:34:40 GMT
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I believe that you can buy running in oil but that it is not what you would call a bargain.
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Aug 13, 2015 23:35:25 GMT
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On the two occasions that I've had to run in a rebuilt engine I've just used the same 20/50 that I would use ordinarily. Would definitely put some in rather than cranking it over dry.
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taurus
Posted a lot
Posts: 1,084
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For just timing it up you I've left adding oil until I'm ready to time it, then put in the usual engine oil just before turning it over by hand. In terms of initial start just disconnect the ignition on first crank to build up pressure.
Assembly lube is the other way to go, lots to choose from, but I've read somewhere that not all are oil soluble so check that the one you use is.
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Engine prep - oilslater
@slater
Club Retro Rides Member 78
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Aug 14, 2015 12:15:19 GMT
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You want the cheapest shittest 20/50 you can get for running in... It wont be in there five mins so you don't need special stuff. Run it and change it after a few 100 miles and then run another lot for a thousand or so. Then put your good oil in. You can squirt some clean stuff in the oilways and pump when your building it to help it prime. I would stick to graphgen for the bearings tho. This will protect them during assembly and while oil pressure builds up for the first time. You can even prime the pump with graphogen if you like. It wont drain out over time. If you have fitted a new cam/followers you need proper cam lube for that.
One thing you mention is that you have put lube on the bores?? You must never lube the bores when you assemble and engine. At most you want WD40 on them, i don't even get oil on them if i can help it although i guess this is a little pointless once it gets running. If you lube them with graphogen the rings wont bed in properly.
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Aug 14, 2015 12:29:25 GMT
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So if I clean the bores and spray wd40 before the head goes on I should be OK?
It's assembly lube at the moment as I thought it would prevent rust whilst I finished the head - the garage sometimes gets damp in heavy rain which is why I did it.
I'll drop by Halford and get some oil tomorrow, the cam is used so it's bearings and bores that need bedding in
Thanks guys, there are so many opinions online it's hard to say what's best
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1966 Ford Cortina GT 2018 Ford Fiesta ST
Full time engineer, part time waffler on Youtube - see Jim_Builds
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