No oil pressure... what gives? (New Rebuild)

[AggieZig]

Ok, found a longer spring and original looking plunger:

Man, this was a bitch to get installed. As I was screwing the temp sender in, I heard a click from inside the case. I'm assuming that was the plug seating all the way up. I'm thinking the other plug may not have even gone into its seat before?

Anyways, cranked for pressure, nothing. Thought to myself this is hopeless... decided to crank it anyways. After a few seconds... 20 PSI! Woohoo!


Link


TheSamba 1; Me as a builder 0

Will run the break in tomorrow morning for the cam.
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Current: Porsche 914 Resto | 1969 VW Beetle
Past: 74 Thing | Sand Rail | Baja Project | Oval Beetle

[hobbybob517]

Good stuff,
Glad you figured it out, Nice engine btw.
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[mark tucker]

the plug does not seat into any seat or clicker. and I would make sure you have the right spring too.I dont use the stiff spring in the cooler relief location.I do use the booster spring in the oil pressure location(neer the flywheel) i also always polish the pistons with 1000 wet (spun in a drill,lathe etc) to be sure there are no scratches or edges that can eat at the bore & cause sticken.

[AggieZig]

So, I spoke too soon.

Started up this AM to being break-in. Anything over idle speed and there is a high pitched whine noise. I disconnected the fan belt to see if it was coming from the alternator but no dice - it's coming from somewhere else (aka the engine).

I rolled it over by hand, no binding anywhere perceived. At least I'm catching this now before something seizes.

Looks like I will be tearing down after all. I guess this is a great way to learn the hard lessons on your first rebuild...
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Zig, Aircooled Enthusiast
Current: Porsche 914 Resto | 1969 VW Beetle
Past: 74 Thing | Sand Rail | Baja Project | Oval Beetle

[motofly196]

I only skimmed through, so forgive me if I missed something. Before you tear your engine down, make sure your whine isn't coming from the crank pulley rubbing on the pulley tin. I have had this happen before. I missed it when I installed the pulley. It only whined when the engine was warm.

[AggieZig]

[esde]

You didn't use straight cut gears did you? That'll do it sometimes..
post a video, people here are very good a diagnostics.
SD
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modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that.

[AggieZig]

Nope, just regular old helical gears.

Here are a couple clips of what it sounds like. No idea why it wasn't like this last night when I fired it up. One clip is with fan belt and one without. I'd let it run longer but I'm afraid of a grenade. It cranks over fine with no binding. (And yes, I forgot the coil wire and that's why I'm cranking for so long lol)


Link



Link

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Zig, Aircooled Enthusiast
Current: Porsche 914 Resto | 1969 VW Beetle
Past: 74 Thing | Sand Rail | Baja Project | Oval Beetle

[rugblaster]

so, out of the frying pan and into the fire.

I don't recall hearing that particular noise. I can see the oil lines sort of tense up with pressure when you light it off. How much pressure do you have? It looks like it spins over freely.

Can you grip the crank pulley and feel end play fore and aft? You can pull the engine off the trans and remove the pressure plate and disc off to take the trans out of the mix. look inside the bell housing for interference. A 12 volt flywheel will rub on a 6 volt case.

I never have had a engine lock up, but I would think it would just seize....no sound.
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[AggieZig]

Unfortunately I am back in DFW for the week so I cannot head out to the garage and play.

Re: Endplay - I'll have to give it a tug but I know that I was fairly meticulous when setting this on the bench.

Re: Oil Pressure - I wasn't watching as I was taken aback by the noise. On the previous start attempt it was around 20-25 PSI or so.

I may consider pulling the clutch / PP and reinstalling to eliminate any tranny issues. I suppose I could double check end play while I had it up on the bench.

Man, this sucks.
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Zig, Aircooled Enthusiast
Current: Porsche 914 Resto | 1969 VW Beetle
Past: 74 Thing | Sand Rail | Baja Project | Oval Beetle

[yamaducci]

Sounds like maybe the fan inside the shroud. If that was the flywheel and bell housing getting ground down there would be mag particles falling out of the air hole on the bottom of the bell housing. Check there before removing the engine.
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[AggieZig]

[borninabus]

you wouldn't happen to be using a super-sweet aftermarket magnetic drain plug, would you?
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[74 Thing]

What is on the flywheel end? Is it an old tranny or bell housing and if so maybe the flywheel is rubbing on that.

[AggieZig]

[SBD]

[williamM]

Only cheap way out I can imiagie is the after market front pully is rubbing or the slinger is in wrong
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[AggieZig]