Priming before starting up after 6 months

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Priming before starting up after 6 months

FrazerJames
Hi all!

I searched and found a few posts talking about priming the oil pump under the distributor, but what I’m really interested in is - do I really need to?

My project to upgrade to EFI is almost done... Like sometime in the next week “almost done.” But it’s taken way longer than I originally planned. So, before I crank her up the first time with fuel injection, should I be concerned about lubrication?

Do I need to pull the distributor or can I just crank the engine with a wrench? Or both? Or none?
1983 Bronco 4.9 300 I6
Current Name: Whitney
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Re: Priming before starting up after 6 months

Gary Lewis
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If it was mine I'd pull the distributor and prime it.  That way you know for sure that it is lubed.  And I'd spray a quick squirt of something like WD40 into each cylinder to give some lube to the cylinder walls.

But those are just precautions, not requirements.  However, cranking the engine with a wrench won't spin the oil pump fast enough to do anything.
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Priming before starting up after 6 months

FrazerJames
Thanks Gary! If I pull the distributor, will I need to retime it or anything?
1983 Bronco 4.9 300 I6
Current Name: Whitney
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Re: Priming before starting up after 6 months

Gary Lewis
Administrator
If you mark where the distributor hits the block now and get it right back down there w/o turning the engine you'll be back in time.
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Priming before starting up after 6 months

ArdWrknTrk
Administrator
In reply to this post by FrazerJames
You can disable the ignition coil and crank the engine until it shows something on the gauge.
That would be the same as turning the engine over with a socket and 1/2" ratchet.... But much more effective.

There's definitely no downside to priming an engine, but it is likely to build pressure before it fires, after half a year.
Just make sure your battery is in good shape, and have a starter/booster if needed.
 Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.
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Re: Priming before starting up after 6 months

FrazerJames
Thanks, guys.

Really looking forward to finally have this thing go more than a block from my house.
1983 Bronco 4.9 300 I6
Current Name: Whitney
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Re: Priming before starting up after 6 months

Rembrant
In reply to this post by FrazerJames
I started my 300 six after six years of sitting (if not longer) and I didn't prime it. I did however lube the cylinder walls several times, starting first with Kroil, and then later Fluid Film. I had turned it over by hand many times over a few months before finally trying to start it. Always better to prime it I'm sure, although I wouldn't worry about 6 months too much.
1994 F150 4x2 Flareside. 5.0 w/MAF, 4R70W, stock.
1984 F150 4X2 Flareside. Mild 302 w/ 5spd. Sold.
1980 F150 4X4 Flareside. 300i6 w/ 5spd. Sold in 2021.
1980 F100 4X2 Flareside. 351w/2bbl w/NP435. Sold in 1995

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Re: Priming before starting up after 6 months

FuzzFace2
In reply to this post by ArdWrknTrk
ArdWrknTrk wrote
You can disable the ignition coil and crank the engine until it shows something on the gauge.
That would be the same as turning the engine over with a socket and 1/2" ratchet.... But much more effective.

There's definitely no downside to priming an engine, but it is likely to build pressure before it fires, after half a year.
Just make sure your battery is in good shape, and have a starter/booster if needed.
That what I would do, pull coil wire and use starter to build oil psi.
With EFI it may want to light off with a tap of the key and why pulling the coil wire would be what I would do.
Dave ----
Dave G.
81 F100 flare side 300 six / AA OD / NP435 / 2.75 gear
http://cars.grantskingdom1.com/index.php/1980-Ford-F100?page=1
81 F100 style side 300 six/SROD parts truck -RIP
http://cars.grantskingdom1.com/index.php/1981-Ford-F100