The hidden oil galley plug-Billy Lowe's Backroom Work Shop

Рет қаралды 68,396

Billy Lowe

7 жыл бұрын

On a small block Chevy, this video shows how to replace the hidden oil galley push plug with a 1/4 in pipe plug.

Пікірлер: 60

@rollydoucet8909 3 жыл бұрын

Good video. I'm sure a lot of guys aren't aware of that plug or what it does. In our shop, we teach the apprentices to study and learn how an engine gets it's oil to all points. They learn very early, where the galleys run, where and why certain plugs are used. If they don't learn the basics of the oiling system, they'll never build good engines.

@Uzztoob 10 ай бұрын

wish my shop teach would have mentioned it. probably the only thing i didnt know about the sbc. we only had to test out on a BS 3.5hp rebuild so, the rest was on us. We could make a Pontiac 400 put out 400 to the wheel just with a tune tho. lol

@mikesheets3310 Жыл бұрын

This 100% works fine on a gen 1, 2 piece rear main seal block. Can say for sure on anything else. Plug measurements are 8 3/8 from top of block and about 1 1/8 from main cap side. I currently have one in my block with no oiling issues

@normanmallory2055 3 жыл бұрын

Thanks for that one , I knew about the push plug but never thought you could tap the hole out , but i admit a pipe plug did occur to me as the best way to secure it ...

@KalaniMusic 3 жыл бұрын

Thanks for this. I'm building a 98 Vortec and this is just what I needed.

@Amack1964 7 ай бұрын

I have just done this to two of my blocks going to make teardowns easier in the future

@banno6938 5 жыл бұрын

No plug no oil filtration & that's it ! Plug goes into a stepped hole & every block I have seen it is impossible to install it too deep . A stepped hole is why it is impossible to remove it driving it from the bottom . It must be driven out from the top . Re-installation however is a little hard & you'll need a slightly tapered tool to pound it in . & I have never seen one fall out or come loose . & yes you can leave it in when you send your block to the machine shop to be cleaned. Also, remove the other 6 oil lifter-galley plugs & the 1 on top-side & you can leave the one by the filter mount because you can reach that to clean there .. Also get yourself some engine cleaning brushes & go through the entire block front to rear . As for the hole with the suspect plug buy a 30 inch or so 1/4 brake line cut off one end & adapt it to an air spray gun & blow out all the holes real good . NOTE ! " The entire block must be clean before installing the cam bearings & you can NOT get your engine too clean " Clean everything ! If reusing an old iron intake remove the heat shield on the bottom & clean there also . & Clean your valve cover baffles . Clean it all until you can eat off of it !

@christopherparis6841 Жыл бұрын

Frfr there's no plug nor cam bearing that's safe if the ock wash is any caustic wash caustic meaning eats up other than cast iron

@brucemcguff9289 Жыл бұрын

Seen a lot of crap come out of valve cover baffles.Good advice

@joeborges3839 3 жыл бұрын

I’ve been threading that hole for many years, be carful not to plug any thing that shouldn’t be pluged

@cmsracing 6 жыл бұрын

Very informative, thanks for posting!

@nickschoenly742 3 жыл бұрын

I just had this plug fall out on my 406. The pressure spiked to 100psi at idle. I found it turned sideways blocking both passages. Just one more thing I can add to the list of things that have only happened to me lol

@chimayinasniffer 2 жыл бұрын

That might be what I have going on right now. Thank you

@amateurism1 10 ай бұрын

I found your comment hilarious, I have a long list too lol, if your anything like me, it just means you are getting stuff done, be well.

@Uzztoob 10 ай бұрын

love the profile pic lol. i gotta 76 about the same color. really needs painted tho. great video, didn't know about this one. one of those things i let the shop take of in past. shame on me i been lucky all this time on the others lol. off to make a blower / brush tool to get all up in there. Keep up the great vids

@CorkySandpiper Жыл бұрын

Great video!

@randy1ization 2 жыл бұрын

How do you service the oil filter bypass mechanism, how do you get it out and replace it. thanks

@toddnelson7050 Жыл бұрын

Hello, if you put a pipe plug into that block you would be below both passages versus in between them. Looking at the exploded drawing of that motor it looks like you’ll end up preventing the oil from first going through the filter. So your motor would end up with unfiltered directly to the bearings. Or am I getting this wrong.

@castillo33brandon 4 жыл бұрын

Thank you sir!

@garysgarage.2841 Ай бұрын

Is a mark IV big block the same?

@brt-jn7kg 3 ай бұрын

Did you stroke this engine?

@chickenfoundation9323 2 жыл бұрын

What if the machine shop doesn’t remove it but removed all the other plugs?

@markrandolph3161 Жыл бұрын

If you leave that plug out the oil will bye pass the oil filter. Then you know what will happen to your bearings.It won't take long to ruin your day.

@pauljanssen2624 3 жыл бұрын

You will not lose you will not lose oil pressure but you'll have no filtration of your oil it will go straight from the pump into the motor the plug is there to Route the oil from the oil pump to the filter from the filter back to the main Oil galley

@pauljanssen2624 3 жыл бұрын

I like my comment 😊

@muffdiver69x 2 жыл бұрын

punctuation is key.

@robmotown1 3 жыл бұрын

What about after market blocks like Motown and little m???

@fridaynighthikes 6 жыл бұрын

Cool video. I'm not an engine rebuilder but enjoy the mechanics of motors. Where do the shavings go while you tap the hole ? Do you use a shop vacuum to clean out the metal ?

@billylowe9631 6 жыл бұрын

A sure recipe for early engine failure is to have shavings in the oil galley when the engine is first started. Thus the threads should be cut early in the rebuild process. From this point the block will go to the machine shop and hot tanked and machined as needed. One of the final steps before assembly of an engine is to wash the block and run brushes through all the oil galleys to ensure all harmful particles have been cleaned out.

@rightsidelanechoice7702 2 жыл бұрын

So it forces oil thru the filter

@stephenwilkins2960 6 жыл бұрын

did you use a regular tapered pipe tap or did you use a straight piped tap

@billylowe9631 6 жыл бұрын

Regular tapered pipe tap

@stephenwilkins2960 6 жыл бұрын

Billy Lowe thank you sir awesome video great knowledge happy motoring

@geodes6722 3 жыл бұрын

I did this recently. The first pipe tap I used would not go in far enough before it contacted the sides of the hole and would go no further. I found another 1/4” pipe tap with a reduced upper shaft and it worked just fine.

@hessrods9523 3 жыл бұрын

Thanks for posting! Helped me for sure!!

@Nestophallies 3 жыл бұрын

Which generation motor? I just rebuilt an 05 5.3l. I found the dumbell in the back under the rear cover.

@billylowe9631 3 жыл бұрын

@VicTor-gi7so 3 жыл бұрын

wow nobody heard of compress air ? wire tube brush. never seen a plug come . put a thin film permatex around plug. see ya in 20 years

@jacksonbeverly3250 3 жыл бұрын

Not hidden if you know your small blocks

@AR_420 2 жыл бұрын

I have a Vortec block and a 1/4 NPT tap does not fit as well as yours does. I noticed it slid in the hole a little before you even started to turn the tap. Mine is tight from the beginning. Right at the block bearing cap surface. Any ideas/thoughts?

@vi67 2 жыл бұрын

AR420 Reading your comment, i noticed another viewer found another 1/4” pipe tap with a reduced upper shaft and it worked just fine.

@randy1ization 2 жыл бұрын

grind the tap down a bit.

@thepoopsoup 5 жыл бұрын

8 3/8 in from the top measure it with a used rod

@TheHypnotstCollector 4 жыл бұрын

My 350 has sat for some years. I put my Priming Oil Pump (Dist w/o any teeth) in and spun it and Lo! NO Oil Pressure! A mud dauber wasp has invaded my small block! No oil is going to the rockers or anywhere. SO, where do I look? Where can a wasp get into or gain access to an oil galley?! Perchance the oil line for the pressure gauge was left open but looking inside the hole I see nothing.

@billylowe9631 4 жыл бұрын

What you said scars me. I have a big question. What type and amount of crud is inside the engine. If you do get oil pressure, will the stuff wipe out the motor?? I suggest the engine be disassembled and all oil galleys be checked and cleaned.

@TheHypnotstCollector 4 жыл бұрын

@@billylowe9631 The engine is on the ground. This is a expensive engine. When I spun the primer and nothing happened I stopped. It's been almost 4 years and now I am going to find and cure the problem. 4 years ago I pulled the heads and oil pan, went thru everything to make sure it was ready to start. (I pulled it out of my 59Vette over 10 years ago ) no pressure...then I moved, busy etc....But now I am going to find that mud dauber.....The engine has not turned over, only the oil pump has turned. Perchance it got into the oil pressure gauge hole but looking down there I see nothing. Maybe pull the pump ,knock the 1/4" plug and look around in there?? Oh, I just saw your channel page.....mine was black, 2x4's etc but I put in the 350. (got more for the 2x4's, in 1999, than my dad paid for the car in 1966!)

@billbird3833 5 жыл бұрын

Don't know what happened to the sound

@SLJ2137694 3 жыл бұрын

Push plug? We call them cup plugs.

@michaeldose2041 2 жыл бұрын

A rose by any other name...

@barrykilts4506 2 жыл бұрын

I was

@rightsidelanechoice7702 2 жыл бұрын

So that plug is normal I was thinking it shouldn’t be there. Thanks.

@joshstaley7459 2 жыл бұрын

my lt1 has a ball

@randy1ization 2 жыл бұрын

my sheep has 2 balls.

@1pollo1rabbit 5 жыл бұрын

You will have 0 oil pressure with that plug missing.I learned the hard way.

@pauljanssen2624 4 жыл бұрын

That sucks you wrong if you leave that plug out you just won't have your oil filter by the oil filter but if you leave one of the other plugs out you're going to either have oil coming out of the back of the motor or you can have very well-oiled timing chain with no oil pressure

@rollydoucet8909 3 жыл бұрын

That plug is merely a diverter. It diverts the pressurized oil through the filter before continuing through the engine. Failing to install the plug will result in unfiltered oil going into the engine, but the oil will still get to the engine.