Engine start up 6 months after dyno/build - Team Camaro Tech
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post #1 of 7 (permalink) Old Jan 19th, 08, 01:45 PM Thread Starter
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Laurence
 
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Engine start up 6 months after dyno/build

I have a built big block finally ready to start up after 6 months since it was built and dyno'd (took a while to put it all together!).
How safe is it to just start it up (with dyno oil/ lube) or should I pull the plugs and crank it without spark to get the oil pressure up?
Any advice appreciated...

..."you can never go fast enough"..driver,Two Lane Blacktop.
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post #2 of 7 (permalink) Old Jan 19th, 08, 02:13 PM
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Re: Engine start up 6 months after dyno/build

6 months is nothing compared to three years fo me. You definatly need to orime the oil pump till you get good oil coming thru the lifters. I had no problems with mine which is a hydraulic roller I just primed it with a good 1/2 drill moter.

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post #3 of 7 (permalink) Old Jan 20th, 08, 09:26 AM
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Re: Engine start up 6 months after dyno/build

If it's already been broken in on a dyno then you should be fine. Lots of engines sit that long without being fired up. Just start it. It should have oil pressure as soon as it fires.

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post #4 of 7 (permalink) Old Jan 20th, 08, 12:55 PM Thread Starter
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Laurence
 
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Thumbs up Re: Engine start up 6 months after dyno/build

Thanks for the replies...

My engine builder (in Colorado) suggested turning the whole engine around while it was on it's engine stand...but the shop doing the work for me had already dropped it in and hooked it up...so that was not an option.

I'm being cautious as this stands me in at a lot of $$$, and I'd rather be safe than sorry!...it's a flat tappet cam too (Isky 280-mega), so oil starvation right now could be a nasty surprise!

Don't really want to pull the distributor, so pulling the plugs and cranking without spark seems like some insurance (info I got from Beck Engines start up instructions)...

We'll be firing it up this week, so any other words of encouragement would be great!!!

..."you can never go fast enough"..driver,Two Lane Blacktop.
_____________________________________________
68 coupe/475ci/TH400/3.55 rear/Mark Jones motor: 850 Holley DP/Weiand stealth/9.2 comp/ Isky 280 mega cam/ 570+ hp/ 580+ Tq/brutal power!
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post #5 of 7 (permalink) Old Jan 20th, 08, 12:56 PM Thread Starter
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Re: Engine start up 6 months after dyno/build

duplicate post

..."you can never go fast enough"..driver,Two Lane Blacktop.
_____________________________________________
68 coupe/475ci/TH400/3.55 rear/Mark Jones motor: 850 Holley DP/Weiand stealth/9.2 comp/ Isky 280 mega cam/ 570+ hp/ 580+ Tq/brutal power!

Last edited by Lol_uk; Jan 20th, 08 at 12:57 PM. Reason: duplicate posting
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post #6 of 7 (permalink) Old Jan 20th, 08, 04:16 PM
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Re: Engine start up 6 months after dyno/build

I would take time and pull the distributor and prime it first it only takes a second to pull it. Your right better to be safe than sorry.

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post #7 of 7 (permalink) Old Jan 20th, 08, 05:54 PM
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Re: Engine start up 6 months after dyno/build

Well, there's nothing to doing a prelube unless you don't have a hootus for prelubing or don't know how to stab a distributor. If that's the case you are probly better off not pulling the distributor. Getting it back in wrong can cause an engine a fair bit of hell too. But we can walk you through it, or you can do a search and find about 64 million posts on how to put a distributor. If you decide that's the way you want to go.

Pulling the plugs and spinning awhile is better than nothing. It relieves most of the load on the rod bearings and pistons until oil gets moving(which happens pretty quick).

You sure your builder wasn't telling you to manually rotate the engine a few revolutions? That would be a good thing to do too.

Tim Smith
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