No Oil Flow, Nvm Oil Pressure

[2002iii]

7 hours ago, M3M3M3 said:

This...x1000.

WD40 is not a lubricant.  WD stands for Wirer Dryer.  It's best use today is for cleaning because it is a great solvent.

 

Use real oil in the cylinders, and poured on the valve train, when cranking a dry engine.

 

Hopefully with all the dry cranking you have done there is not more damage than there was before.

WD actually stands for water displacement.

[Preyupy]

Have you tried to drain the oil?  After sitting for 25 years outside I suspect that the oil that was in the pan has turned into Jello. The pump isn't working because it can't suck that gunk through the pickup.  If the pump is bad, sprocket came off etc it happened when it was running last and most likely trashed the bearings at that time and that is why it got parked in the 1st place.  

[Hans]

Another good idea - pickup clogged solid. But i suspect some serious problem caused it to be parked. As above why do you think gasket is bad?

[BarbaratheIrish2002]

On 8/11/2022 at 9:28 AM, TobyB said:

I've torn apart motors that have been sitting for 30 years.

 

The bearings are still wet. 

(the cam lobes and cylinder walls are not, of course,

which is why you pour oil in the plug holes and grease

the cam)

 

If the plugs are out, you could spin the thing on the starter for an hour 

and nothing bad would happen.  It just doesn't put ANY load on the

journals, and they're designed not to hurt themselves anyway.  

I mean, shit, look how long the brake pedal linkage lasts, and it's 

inevitably rusted almost solid.

 

@TobyB I couldn't agree more. 

 

I grew up around old tractors and I'm a mechanical engineer by profession. This type of work on older engines is not new to me. Work on 2002s however, is! It's why I'm here!

 

But I agree, the plugs are out, top end is lubricated with 20W-50, my worry was more about the starter than the engine. Whatever folks here are saying about WD-40 down the cylinders, for the purposes of what I'm doing here, lubricant is lubricant as far as I'm concerned. Each to their own! AND, the engine was rotated over about 20 times by HAND first before I could even get the starter to crank. Bah, I'm not too worried about it.

 

On 8/11/2022 at 9:28 AM, TobyB said:

What makes you say the head gasket's bad?

(not saying it isn't, just wondering how you diagnosed it)

 

 

I ran compression test on each cylinder. It wouldn't build pressure. With every full rotation it would build to about 50 PSI then bleed back to 0PSI (almost immediately). I took a video of the process and then went to the old BMW specialist here in SF and showed him. He works with these engines everyday. So I asked him to see what he thought. He said head gasket immediately.  I asked then why coolant and oil hadn't mixed and he said it was just the combustion part of the gasket was failed, not the part between the water jackets and the oil galleries which was still evidentially sealing

 

However, always open to a third/fourth/fifth opinion. Any thoughts?. 

 

 

Edited August 14, 2022 by BarbaratheIrish2002

[BarbaratheIrish2002]

On 8/11/2022 at 4:37 PM, Hans said:

Another good idea - pickup clogged solid. But i suspect some serious problem caused it to be parked. As above why do you think gasket is bad?

@Hans- as above with my reply to Toby. Compression test and the opinion of someone who knows a lot more than me about this engine. The proof will be in the pudding when it's pulled apart- which I'm going to proceed with now as the cylinder walls look to be in such good shape. I think it's a good engine, just needs plenty of work. 

Edited August 14, 2022 by BarbaratheIrish2002

[Dudeland]

I am by no means an engine person.  I know enough to know that I don't know anything. You do need the squeeze for things to work.  It will be either the head gasket, rings or rusted valves not sealing,  either way you are going to have to crack the seal and find out.   

 

Luckily there is only 4 cylinders and 8 valves and one head, so the problems are more easily quantifiable than twin cam or 8 cyl engines. 

 

 

[Son of Marty]

22 minutes ago, BarbaratheIrish2002 said:

Whatever folks here are saying about WD-40 down the cylinders, for the purposes of what

Wd  40 and other light oils are used here for there penetrating ability to soak pass the top ring and lubricate the lower rings, I use atf for it's detergent and lube property's, contrary to popular beliefs wd 40 is a light lubricate. Myth: WD-40 Multi-Use Product is not really a lubricant.

Fact: While the “W-D” in WD-40 stands for Water Displacement, WD-40 Multi-Use Product is a unique, special blend of lubricants. The product’s formulation also contains anti-corrosion agents and ingredients for penetration, water displacement and soil removal.

From the wd 40 website.

[TobyB]

Quote

I ran compression test on each cylinder. It wouldn't build pressure. With every full rotation it would build to about 50 PSI then bleed back to 0PSI (almost immediately).

 

Yeah, but the thingy is, at least 2 cylinders will have a bit of rust on the valve sealing faces.

 

They're super- hardened, so it's not a real problem, but it'll do exactly what you describe.

 

Since it does it on all FOUR, I suspect there's junk in the valve seats, just from sitting.

 

Plus, headgaskets usually lose 2 adjacent bores, or blow into the water jackets 

(or all three, if you do something dumb like keep racing after all the water came

out the exhaust)

Long- sitting engines just aren't good candidates for static pressure testing.

 

Not to say that the gasket's GOOD, just that compression doesn't prove it bad.

 

Carry on, carry on...

 

and sorry about the lack of oil flow.

 

t

 

 

[BarbaratheIrish2002]

@TobyB that makes sense. Lots of sense. Regardless, it's head off?? To my ears, what you say means those valve seats need attention...machine shop attention, most likely. So whether head gasket or valve seats, I'll probably end up having to do both. If I had oil pressure, I could maybe run the engine and the build up might disappear eventually, or at least work itself out a bit, but the fact I don't means I think I'll proceed on the trajectory I'm on. No more cranking for one. Engine out (fun) begins, me thinks!

Edited August 14, 2022 by BarbaratheIrish2002

[jimk]

Why not just take it apart, it won't heal itself.

[TobyB]

The seats aren't damaged by the rust, it just affects static sealing.

For about 30 seconds at idle or above.

So no, hypothetically, an old engine that's being restarted

doesn't need a valve job.

 

 But that assumes good oil pressure.  So take it apart already!

 

t

is procrastinating putting it back together.

 

[tech71]

17 hours ago, BarbaratheIrish2002 said:

Engine out (fun) begins, me thinks!

Ya think? That appeared inevitable since the first post, what was it? "pulled from a field" "since 95"

Speculation may be entertaining but is not knowledge.

Edited August 15, 2022 by tech71