Starting Car After Sitting For 10 months? - ZR-1 Net Registry Forums

KJL · 10-05-2016

Is here anything I should do before starting the car. I know for my 72 C3, I pull the power to the coil and crank the engine until I get oil pressure. Not sure how I would do that with my 95?

RussMcB · 10-05-2016

A thought: Remove all spark plugs so the engine can spin with no load while it builds oil pressure.

Maybe spray some type of light oil in the cylinders.

George Maz · 10-05-2016

That's actually how I de-winterize my big block boat engines... spark plugs out, no load, let them spin 15-20 seconds, then let the starter motor rest five minutes.
Repeat until I see 7-10 psi steady oil pressure.
... only spray a mist of fogging oil into cylinders, to avoid any hydralock damage.

KJL · 10-05-2016

Thanks for the quick reply! Sounds like a good idea!

I did a little more research and think I will pull the injector fuse first to see if spinning it with plugs in place will build any pressure. If not, I will remove the plugs.

George Maz · 10-06-2016

Quote:

Originally Posted by KJL

I did a little more research and think I will pull the injector fuse first to see if spinning it with plugs in place will build any pressure. If not, I will remove the plugs.

The idea behind my suggestion is to eliminate compression, thus relieving most stress of the rotating assembly for lack of lubrication due to long term storage.
In my case also to assure that any residual cylinder fogging won't cause hydralock, months or years later. I hand spray Marvel Oil down the carb when winterizing, but I've seen guys just pour it. The big block eats it up, but for my high-dollar hi-compression build (540 N/A 700hp) I'll take the extra precautions.

I'd take a sample of fuel from the rail and the bottom of the tank. Today's ethanol gasoline is hydroscopic, absorbs water in humidity after 90 days.

gbrtng · 10-06-2016

Pretend you are clearing a flooded engine by planting you foot to the floor on the accelerator pedal - if the ECM is programmed the way I think it is, no fuel is sprayed.
Somebody else jump in here ... I'm too lazy to run out to the garage for the owner's manual.

BigJohn · 10-07-2016

Turning to you wait seven seconds then start!

10-05-2016	#1
KJL Join Date: Mar 2013 Location: Roswell, GA Posts: 234	Starting Car After Sitting For 10 months? Is here anything I should do before starting the car. I know for my 72 C3, I pull the power to the coil and crank the engine until I get oil pressure. Not sure how I would do that with my 95? __________________ 1995 ZR1 #159 Ported,Corsa,4.10 Rear, Dual Disc RAM Clutch, Alum Flywheel, Haibeck Chip, ZFDoc Plates, Relocated Battery 400 rwhp 1992 ZR1 #280 Ported, Locked Secondary's, Flowmaster Exhaust, Haibeck Chip, 375rwhp 1996 Collectors LT4 (Stock) 1972 Convertible 434 Small Block 572 rwhp

10-05-2016	#2
RussMcB Join Date: Jan 2015 Location: Marietta, GA USA Posts: 1,159	Re: Starting Car After Sitting For 10 months? A thought: Remove all spark plugs so the engine can spin with no load while it builds oil pressure. Maybe spray some type of light oil in the cylinders.

10-05-2016	#3
George Maz Join Date: Dec 2014 Location: Long Island, NY Posts: 295	Re: Starting Car After Sitting For 10 months? That's actually how I de-winterize my big block boat engines... spark plugs out, no load, let them spin 15-20 seconds, then let the starter motor rest five minutes. Repeat until I see 7-10 psi steady oil pressure. ... only spray a mist of fogging oil into cylinders, to avoid any hydralock damage. __________________ 1990 ZR-1 #1587 1990 ZR-1 #1727

10-05-2016	#4
KJL Join Date: Mar 2013 Location: Roswell, GA Posts: 234	Re: Starting Car After Sitting For 10 months? Thanks for the quick reply! Sounds like a good idea! I did a little more research and think I will pull the injector fuse first to see if spinning it with plugs in place will build any pressure. If not, I will remove the plugs. __________________ 1995 ZR1 #159 Ported,Corsa,4.10 Rear, Dual Disc RAM Clutch, Alum Flywheel, Haibeck Chip, ZFDoc Plates, Relocated Battery 400 rwhp 1992 ZR1 #280 Ported, Locked Secondary's, Flowmaster Exhaust, Haibeck Chip, 375rwhp 1996 Collectors LT4 (Stock) 1972 Convertible 434 Small Block 572 rwhp Last edited by KJL; 10-06-2016 at 09:29 AM.

10-06-2016	#6
gbrtng Join Date: Feb 2006 Location: San Antonio area Posts: 1,179	Re: Starting Car After Sitting For 10 months? Pretend you are clearing a flooded engine by planting you foot to the floor on the accelerator pedal - if the ECM is programmed the way I think it is, no fuel is sprayed. Somebody else jump in here ... I'm too lazy to run out to the garage for the owner's manual. __________________ “Buy the best example of what you want, and pay whatever it takes. That way, you cry only once.” ~ Bruce Meyer

10-07-2016	#7
BigJohn Join Date: Feb 2012 Location: Ledyard,CT Posts: 8,302	Re: Starting Car After Sitting For 10 months? Turning to you wait seven seconds then start!