460 oil consumption

[85lebaront2]

I was trying to find a picture of the 1/2" drive digital torque indicator I have. We went to a metrology seminar outside DC in 2011 beofre I retired. One of the companies that manufactures precision torque calibrators had a very nice booth set up. They had picked up a small digital torque indicator from either Northern Tool or Harbour Freight to show how inaccurate cheap torque wrenches and indicators can be. It backfired, the little unit was extremely accurate, as a result I bought one when we returned to Newport News.

[viven44]

I have this unit below... I was going to throw it in my tool bag and use it for big lug nut jobs instead of buying a monster torque wrench... I had some problems with it like the display turning off in the middle of use due to having an over aggressive auto-turn off.. took a while to re-set the torque spec each time.... so I did end up buying a monster torque wrench

I might test its accuracy in the sub 30 ft lbs level when my new wrench arrives

https://www.amazon.com/dp/B0852JLJ2P/?coliid=I2W63BTP8HNLCX&colid=3IGQF00LDI4AO&psc=1&ref_=cm_sw_r_cp_ud_lstpd_58N1N67A9N7Y3HR3MT6R

[viven44]

This "Quinn" one looks very promising... I might get one of these some day if they are on sale. Also the 1/2 inch variant.

Might seem like overkill but when I am doing something mission critical like a cam bolt, I'd probably check torque using 2 different metrologies. "Trust but verify" is the name of the game for a guy like me with cheap infrequently used tools that are never re-calibrated ever in their life

https://www.harborfreight.com/hand-tools/sockets-ratchets/torque-wrenches/38-in-drive-59-59-ft-lb-digital-torque-adapter-58705.html

[85lebaront2]

That looks like an updated version of mine. I will have to go get it and take pictures.

[viven44]

Well I have some interesting news

It doesn’t smoke anymore on cold starts… but there is still smoke after things are fully warm

Seeing is believing — check out cold start video below

https://youtube.com/shorts/NUXWXUg1c7k?feature=share

It is confounded because I don’t know if it’s the high mileage oil or if it’s because I also happened to realize this morning my breather actually wasn’t breathing. The engine came to me with this breather… I was fully aware it had a PCV valve on it. Just didn’t put 2 and 2 together and realize PCV valves don’t breathe in the opposite direction  😖 never claimed to know much 🥸




There is still the issue of smoking/oil burning when fully warm

[ArdWrknTrk]

Interesting.
I don't think I've ever seen a breather hooked up to a PCV.
There's got to be a dozen plastic elbows in the HELP! aisle

So, actually providing filtered makeup air to the opposite end of the opposite valve cover should help clear vapor, mist and smoke out of the crankcase.
I don't know that it will remedy the oil consumption.

[viven44]

Yes I don't believe it should have a PCV valve. It seems like something I would have done ....but old videos of the engine the day I bought that truck show this valve installed..  Well I obviously allowed it at least..... I am pretty sure I have an elbow hose I removed off something else.

Just to test... I installed the PCV valve back in the breather right after that cold start and it started smoking slightly...
Here is the video of that... shot exactly 2 mins after the previous video...

https://youtu.be/EA2KPdBRAvk

Maybe there is some hope in installing a catch can..

[grumpin]

At my last job, I handled parts and some other areas.

One was getting every tool we needed to get calibrated, calibrated.

We had a gent come through from I think Oklahoma, he came once a year.

One thing we did was torque wrenches, and personal ones if you used them on the airplanes.

I probably handled that for 10-15 years.

Only one torque wrench was ever rejected, it was mine. A Craftsman, he said it was accurate but the lock didn't function properly. It would slip past if you weren't careful.

Took it home and used it. I was amazed how well those torque wrenches held up. The companies were Snap-On, but different brands from other mechanics.

[viven44]

Installed the catch can. Tell you what, there is definitely more real estate under a bullnose hood. The dentside double inner fenders (metal + plastic underneath) take waaay too much room and the blower motor box is like 2 times bigger. The only place I could comfortably install it and still use the stock air cleaner was on the metal cover of the blower motor box. Helped that I previously removed all rivets on the cover and replaced with nuts/bolts to replace the blower motor.

[viven44]

Good to know that the wrench calibration can be trusted (At least the top brands).... that probably depends on the user bringing it down to the lowest setting to avoid hysteresis?

Both the 3/8th harbor freight ones I got rid of would not lock anymore. Thats how they failed. 3rd one is starting to act up the same way !!
My most reliable one is my 1/2 inch Husky one (50-250 ft lbs). I have a 1/2 inch Tekton as well (20-150ft lbs) which is good...

The harbor freight ones are 1/4 inch and 3/8ths... 1/4 inch ones work well... but I have been lately using a beam wrench for critical 1/4 inch needs....

[viven44]

Here is a pic of the 460 the day I got the truck.... it definitely came with that PCV valve on the breather... I don't know why they installed it... no telling how long it ran that way .... obviously not able to breathe well (only exhale but not inhale on that side ).. what sort of long-term damage has that resulted in ??

I can tell its happier now.

[ArdWrknTrk]

What damage???

What happens if you suck through a straw and put your finger over the end?

[viven44]

Depends where I am. If I was snorkeling like I was 2 weeks ago that would be somewhat critical because my 3rd world behind doesn't know how to swim  

I was thinking if the breather was not able to pull in air, what would be the result on the PCV system health ? I mean the manifold vacuum isn't going to quit its job of pulling air out of the PCV... air must be made up somewhere... If there isn't fresh air.. where would the make up come from ? Blow-by right ? So would the blow-by have a mild "vacuum assist"??

[ArdWrknTrk]

You're not sucking air past the rings,

But if it was factory jetting you'd be running rich, because the fuel system is calibrated for the vacuum leak at the PCV valve.

[viven44]

Thats good to know that the blow-by couldn't have got worse... or even the behavior of the oil control rings from years of being suffocated that way...

[viven44]

Catch can is working. Found 4ml oil in it after 70 miles. Nasty black oil. Better out than in.

[viven44]

Well… I guess I had not been paying close enough attention. My garage floor has many different spills and past rear main seal drips (from my past 84 bronco) and I never bothered to look at RMS much on this bronco and in a sea of drips I supposed I hadn’t bothered much
Garage floor



But the church parking lot is indubitable. Came back to this after being parked for 90 mins

Wonder how much I’m losing this way and how much of this is factoring into my oil consumption..... this level of RMS leak in my experience was about what my 84 Bronco had. Seeing a very similar pattern but I didn't own the 84 long enough to know how much oil was being lost.

[ArdWrknTrk]

Customer sent me this on my way home Thursday......

[viven44]

That is horsepower leaking

[viven44]

No drips today after a 10 mile drive. RMS has a mind of its own.