B16, B18, B20
User avatar
By Ej2-B16a
#101160 so im getting oil starvation and the coating on my rod bearings are slowly burning up and chipping off.

this happend when i had a stock b20 oil pump. and its a b20 VTEC...

i now have b18C VTEC oil pump. is my problem going to be gone? or is it because the vtec-less blocks dont have oil squirters?

basically i havnt gotten a chance to drive the car on the new oil pump much to find out yet. it took about 3 weeks for my rod bearings to shave up with the non VTEC oil pump. do you guys think i solved my problem by getting a VTEC oil pump or is it really the fact that theres no squirters?
User avatar
By Ej2-B16a
#101247 bump
User avatar
By Greasedmonkey
#101285 The B20 wasnt meant to rev past 7k. I dont think the oil pump is going to help you. It might be that your clearances are too tight and not letting enough oil in. Do you have a stock B20 block or do you have forged pistons and rods?
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By Ej2-B16a
#101297 lol what do you mean by stock b20 block? ofcourse its a stock b20 block... i dont think you can buy an aftermarket b20 block :?


and this happend when i had stock pistons w/ ARP rod bolts.

now i have Manley forged pistons w/ stock b20 rods.

anyways im gonna paste this i posted it on hondatune idk if it might be some help
















this kid replied with this question



Re: LS/B20 VTEC masters, PLEASE READ.

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how clean is the block, meaning is there a possibility the passages could be clogged?
what about the pickup screen?
what was the oil pressure?

....from my understanding the only purpose of the squirters was to cool the cylinder walls, not to actually lubricate anything...I dunno, I read that somewhere on HT. I dont know how true it actually is, I've never used them and alot of block dont have them. I dont see that having anything to do with your problem either way.

what do the main bearings look like?
was the block align bored?
whats the crank look like?

as you can see theres alot to think about. post some pics with some answers to these Qs






i replied with,

Re: LS/B20 VTEC masters, PLEASE READ.

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the crank is fine i threw away my first set of bearings the ones that shaved off badly. it basically sounded like a spun bearing. heres a bit more explanation

the oem bearings i left alone when i did the b20/vtec conversion we checked them out they were completly fine. so 2-3 weeks later of driving it the bearings were just fred the coating on them was shaved off. luckily the crank was fine, smooth no color change

anyways to shoten it up it cant be clogged cuz we cleaned out the whole crank and considering the fact that the bearings looked almost new then they decided to take a shit 2 weeks later makes me believe that it has something to do with the vtec conversion. I mean its true that probably the squirters only cool the cyl walls and i have not yet had this problem but thats also because i havnt been able to drive it in needs a tune still.

its my girls birthday ill snap some pics maybe 2nite of the 2nd set of the bearings
User avatar
By smokinsoljah420
#101302 he meant block internals dude. lol! :lol: :lol: :lol:
User avatar
By Ej2-B16a
#101370 oh.. right, i thought he maybe ment stock bore?

yes its 84.00 mm


but yes the internals were stock at the time, now their not. wil see!

just wanted to see if anyone had any thoughts or something. maybe i fixed my problem by replacing the water pump wil see
User avatar
By Ej2-B16a
#101389 still up for a bump if anyone has ideas :thumb:
User avatar
By b20_link
#106018
Ej2-B16a wrote:still up for a bump if anyone has ideas :thumb:

well i have a b20-vtec
:twisted: :twisted:
and i had that same shit you haveing :wink: u need a b16a2 oil punp
that what i have and it kicking ,,, i get all that oil i need
and fast :angelhorns: