Nissan 370Z Forum - Adding more than max oil level

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Nissan 370Z Forum (http://www.the370z.com/)

- Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)

- - Adding more than max oil level (http://www.the370z.com/engine-drivetrain/135266-adding-more-than-max-oil-level.html)

DrBacon

12-07-2020 04:38 PM

DrBacon

12-07-2020 09:11 PM

Rusty

12-07-2020 09:39 PM

Had a friend years ago that drag raced a 427 big block Camaro. Mid season he would drop the pan and change out the crank and rod bearings to freshen it up. Did this for years with no issues. The one time he did his mid season. He put in the wrong size bearings. The bearings was 0.010" over. Start the car up and had low oil pressure. Couldn't figure out why. Ran the rest of the season. Said that was the best that motor has every run. End of season tear down and rebuild. That's when he found the over size bearings. :rofl2:
'

DrBacon

12-09-2020 03:42 PM

Rusty

12-09-2020 04:05 PM

Quote:

Originally Posted by DrBacon (Post 3975791)

Ever heard the saying it runs best right before it lets go? :D

Ohhhhhhh yeaaaaa. :rofl2:

BettyZ

12-09-2020 05:49 PM

Quote:

Originally Posted by DrBacon (Post 3975363)

So he took it for a nice gentle drive to watch the oil pressure and it was going down to around 23-24psi at 3,000rpm under load, he said when he lifted off the throttle the oil pressure jumped up to 40s. After talking to him for a little while we both agreed it seems far too low. We will pull the engine within the next few weeks and check for damage/issues. Better than blowing up a 20-25k engine. We were just hoping it could've been literally anything other than internal, so much for being optimistic :(

Wish in one hand, sh1t in the other, and see which fills up first.

DrBacon

12-13-2020 03:06 PM

Rusty

12-13-2020 03:17 PM

Not good. Looks like machining chips. :icon14: Wonder where that long piece came from. :confused:

FL 4Motion

12-13-2020 06:17 PM

Maybe that engine was only built to handle 1000hp once. Or 300ish hp 3 or 4 times...

Kinda like the harbor freight tools of motor builds.

Spooler

12-13-2020 06:58 PM

Ugg, not good. Good luck to him. Hope it is nothing expensive. Oil cooler will need to be replaced and all the oil lines cleaned.

DrBacon

12-13-2020 10:07 PM

JARblue

12-14-2020 09:40 AM

Quote:

Originally Posted by DrBacon (Post 3975118)

The engine is fairly freshly built yes, there was an oil leak coming from the front timing cover after the build so it was taken apart to fix the leak, everything was rechecked at that point. All the gaskets were good except the bolts (or in this case, screws) were a little loose. The gaskets were replaced just in case and bolts retorqued with loctite. No change in oil pressure.

The engine is spec'd to well over a thousand hp but to be perfectly honest this was his first time building an engine so mistake very well could've been made. Just trying to make sure it could be literally nothing else.

Good luck with the rebuild :(

EPS has better bolts (than OEM or Z1) for the gallery gaskets :twocents:

lol at the 1000hp spec... a first time engine builder has no business trying to get 1000hp out of a VQ37 block :eekdance:

ZoomZ

12-14-2020 10:36 AM

Damn!!

DrBacon

12-14-2020 02:50 PM

Ghostvette

12-14-2020 08:50 PM

Quote:

Originally Posted by Rusty (Post 3976502)

Not good. Looks like machining chips. :icon14: Wonder where that long piece came from. :confused:

Looks like part of an oil ring.
:eek::eek:

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