HOLDEN 186 EP3 - Valve job & Cleaning pistons

In this video I lap the valves, clean the combustion chambers, gasket surfaces and piston tops.
I also spent a lot of time gathering the parts I was missing, and cleaning them up, ready to start assembly in the next video.

[@russellgauld5017]

Thanks for sharing your journey mate, I have an old 186 in my Series 3 Land Rover that I am going to pull apart and refurbish. Looking forward to the next vid

[@turnandlearn6542]

Thank you mate. Awesome! I'd love to own an old land rover one day. I'm doing this with no experience so hope it gives you confidence, if that's what you need.

[@nathanmacready872]

Keep the videos coming mate I have a 186 in my garage for my HG wagon project. It has a lot of rust and scale inside the block and head but the motor had good compression before I removed it from the car.

[@turnandlearn6542]

Uploading one as we speak mate! Thanks for your support. This engine actually belongs to my HG wagon! I'm hoping to start work on it soon.

[@thewholls7176]

Good job mate Brought back memories Piston crowns will be fine for this application….. Also for carbon removal try 50:50 mix of ATF and Acetone……….. It seems to liquify the build up in seconds….. Good to see….!!!!!! Keep going..!!

[@turnandlearn6542]

Thanks mate, I'll try upload another soon. Thanks for the tip, I'll give it a go!

[@thewholls7176]

@@turnandlearn6542 Good old Dextron III ATF and actone 50/50 wipes carbon buildup off in seconds

[@dickhead7194]

What I would do is fully disassemble it and get the top of the block machined and what you have to do if you are planning to do a proper rebuild is Hoan out the boars because they develop a lip at the top of the boar

[@turnandlearn6542]

Thanks for the comment mate. That would be ideal but I didn't want to take the bottom end apart at this stage. I think if I can get it back together and running then in the future it'll come completely apart for some upgrades.

[@tomcroydonfrommtthomas4719]

Scrubbing the pistons reduces compression

[@tomcroydonfrommtthomas4719]

I am rebuilding a 202 black motor from an ex police car I had at Mt Thomas station 30 plus years ago

[@billgeorgiou9929]

Did you know you had a burnt valve on the one you lapped in it needs refacing. By the way would be more easy to lap valves in with a hand drill. Oh did you check the guides for any floppy valves ? 😜

[@turnandlearn6542]

Hey mate, I did end up replacing some valves that were too far gone

[@jtautogarage]

Permisi om , berapa momen pengencangan baut cylinder head ya? Thanks🙏

[@dickhead7194]

Yes be very careful with the easy off because it is very corrosive

[@tomcroydonfrommtthomas4719]

Don't remove carbon deposits. They help with higher compression

[@oo0Spyder0oo]

Oh my god, you serious?

[@AydanD69]

One question is that a 186s it should tell u one the vin or whatever it’s called it will say 186sand some other numbers afterwords

[@turnandlearn6542]

Hey mate, I will check and let you know

[@AydanD69]

Because there was a 186 s, p,and h. I think and the s was the best with a forged steel crank and a and factory alloy timing gear and a few other things it was I will call it the performance 186

[@JoshPhoenix11]

ooooh flat top pistons, fancy. (not being sarcastic)

[@Davidm1956]

I watched your video and I think your valve surfaces were a bit too far gone for lapping. One valve I saw was burned. You really need a valve grind and seat resurface before lapping for best results with the head and at least replace piston rings, bearings and rear main seal. I've been in the trade a long time and every time I've seen oven cleaner used it's caused damage to something!

[@peterpace2463]

This head and the valves are fucked mate! Send it off for machine, crack test, new valve guides and new valves… The block also needs major attention. Acid wash, deck, pistons, bearings and camshaft attention. OTHERWISE YOU ARE WASTING YOUR TIME…