Duramax Diesels Forum Truck of the Week
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Old 02-09-2019, 07:17 PM
Rooftop Special Rooftop Special is offline
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Default Oil priming after build - leave glow plugs out?

Hey Guys,

So it's been a slow process (primarily because of me) but I have the engine about ready to go back in. The machine shop said to leave the glow plugs out so I don't build pressure while I'm cranking the engine to oil prime it. I've read here to just leave the bail connectors undone, crank until you see oil pressure and you should be good to go?

Let me know. Thanks guys!

Casey
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Old 02-09-2019, 09:12 PM
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Personally I'd go with machine shop way. Cranks faster, primes quicker with no cylinder pressure. But also pull ecm fuse or disconnect bail so as not to fire the injectors.

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Old 02-09-2019, 11:26 PM
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If you used a high quality assembly lube, you should be fine leaving the glow plugs in. I did mine that way when I built it, just unplugged the FICM fuse. But it is less stress on the engine to remove the glow plugs.

My engine was fired the day after it was assembled though. If yours has been sitting a long while, it's probably worth the effort to pull the glow plugs.
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Old 02-10-2019, 07:54 AM
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I filled my oil pump with Schaefer’s moly ep, unplugged FICM plugs then watched for oil pressure on my cts2. Once I saw oil pressure I plugged the FICM back in and haven’t had any issues.

I left my glow plugs in.
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Old 02-10-2019, 12:37 PM
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Quote:
Originally Posted by Rooftop Special View Post
Hey Guys,

So it's been a slow process (primarily because of me) but I have the engine about ready to go back in. The machine shop said to leave the glow plugs out so I don't build pressure while I'm cranking the engine to oil prime it. I've read here to just leave the bail connectors undone, crank until you see oil pressure and you should be good to go?

Let me know. Thanks guys!

Casey
2 1/2 months thats not bad for that big of a project , welcome back !
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Old 02-10-2019, 08:26 PM
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Tom (thebac) made a garden sprayer with a fitting to the main oil gallery. Use the search it's here somewhere
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Old 02-11-2019, 01:58 PM
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Quote:
Originally Posted by hondarider552 View Post
Tom (thebac) made a garden sprayer with a fitting to the main oil gallery. Use the search it's here somewhere

I did see that, pretty cool but I think since I'm not really doing a lot of these, just this one hopefully, it would just sit around the garage afterwards.
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Old 02-11-2019, 02:04 PM
Rooftop Special Rooftop Special is offline
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Originally Posted by torqued2dmax View Post
2 1/2 months thats not bad for that big of a project , welcome back !
Thank you Sir. The machine shop had it like a month, maybe 5 weeks. I had them build it into a long block. Then it sat at my house until I bit the bullet and started cleaning everything up and bolting it back together. Glad I labeled everything and took a lot of pictures.

If you look at the project as a whole it is intimidating but if you do one thing at a time it really isn't a "hard job", just time consuming.


Now I'm working on bellhousing and torque converter bolts, FUN!
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Old 02-11-2019, 06:15 PM
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Quote:
Originally Posted by Rooftop Special View Post
Thank you Sir. The machine shop had it like a month, maybe 5 weeks. I had them build it into a long block. Then it sat at my house until I bit the bullet and started cleaning everything up and bolting it back together. Glad I labeled everything and took a lot of pictures.

If you look at the project as a whole it is intimidating but if you do one thing at a time it really isn't a "hard job", just time consuming.


Now I'm working on bellhousing and torque converter bolts, FUN!
Do not forget red loctite or coated bolts , new ones , on converter and keep up the good work !
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Old 02-11-2019, 06:49 PM
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Quote:
Originally Posted by Rooftop Special View Post
I did see that, pretty cool but I think since I'm not really doing a lot of these, just this one hopefully, it would just sit around the garage afterwards.

A little Dawn dishsoap and hot water and the sprayer went back to being a sprayer. IIRC, I used it last to spray weed killer.


Thanks for the shout out, Brian.
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Old 02-11-2019, 07:41 PM
Rooftop Special Rooftop Special is offline
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Quote:
Originally Posted by torqued2dmax View Post
Do not forget red loctite or coated bolts , new ones , on converter and keep up the good work !
I thought it was blue loctite and torqued to 60lbs? Can you confirm it's red?

I intended on using the old bolts as I read several posts where others have done that.
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Old 02-11-2019, 07:51 PM
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Quote:
Originally Posted by Rooftop Special View Post
I thought it was blue loctite and torqued to 60lbs? Can you confirm it's red?

I intended on using the old bolts as I read several posts where others have done that.
Dont use red. Blue only.
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Old 02-12-2019, 03:04 PM
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Quote:
Originally Posted by Rooftop Special View Post
I thought it was blue loctite and torqued to 60lbs? Can you confirm it's red?

I intended on using the old bolts as I read several posts where others have done that.
I was going off of Mike Ls post , he said red or coated he sells them , new only , all I know is what he posted , but that was an old post thoughts may have changed !
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Old 02-12-2019, 03:51 PM
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Quote:
Originally Posted by Rooftop Special View Post
I thought it was blue loctite and torqued to 60lbs? Can you confirm it's red?

I intended on using the old bolts as I read several posts where others have done that.
Well I looked and looked and the only post I can find is the one of him saying if you use red you will need to apply heat to it prior to removal , sorry if I may have given you advice that is not current !
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Old 02-12-2019, 04:05 PM
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Quote:
Originally Posted by torqued2dmax View Post
Well I looked and looked and the only post I can find is the one of him saying if you use red you will need to apply heat to it prior to removal , sorry if I may have given you advice that is not current !
Yea , I just found it 12-07-2008 ,post #9 Mike L , blue is for gun sights only , use red with new bolts ! I about went crazy thinking I misread the post !
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