Reason for zero compression in one cylinder (dead cylinder)

Reason for no zero 0 compression in one 1 cylinder dead cylinder piston exhaust valve head b18 b18c b18c1 rebuild low compression Honda Acura Integra Civic CRX vtec diy GSR

[@samrobinsonfilm]

Thanks for the video. I actually just had a chipped exhaust valve on cylinder 3 as well, same exact problem, causing a 0psi compression test on the 3rd cylinder. I'm working on replacing and relappinng valves next weekend.

[@blakebauer3539]

How much did it cost for the parts

[@oby-1607]

Burnt valve or over revving the engine causing the valve to float and chip off part of the valve. Either or both in this situation.

[@joelt8887]

Thanks man! That's what I'm being told.

[@MrsLydiaPo]

is the problem fixable....and if you get it to a mechanic to fix it would he suggest an engine swap....cause thats what they sugested me today...is there any cheaper solution?

[@joelt8887]

@@MrsLydiaPo if you can do the work yourself I'm sure you'd save some money, otherwise it's probably cheaper to replace the engine or the head with a used one.

[@Manuqtix.Manuqtix]

No compression on all 4 cylinders, what could have happened? Is it just the head gasket? Or is it something more severe

[@joelt8887]

Could be a lot of things. Does it spin freely? Could be a timing belt issue or bent valves. That would be nice if it was only a head gasket though! I'd be interested to hear what you find.

[@thisisyourcaptainspeaking2259]

At least it didn't drop a valve.

[@DerrickFishes]

Any chance that chunk of metal from the valve could cause further engine damage?

[@elcapitan6605]

Not a chance. It is impossible.

[@TheKing-nu4fk]

Lol​@@elcapitan6605

[@Jose.Sloyote]

what ended up being the problem for low compression on cylinder 1?

[@joelt8887]

There was only an issue with cylinder 2.

[@DEATHWISHVQ]

0:46

[@Wildart2]

Is it possible just to replace that valve?

[@joelt8887]

I bought all new valves and working on lapping them myself at the moment. I'm going to try to post a new vid once everything is back together.

[@dwightgomez1201]

@@joelt8887 @wildart2 yes you can. Replace the valve ID do valve seals to so you can avoid burning oil

[@jayroverduzco2291]

Why did cylinder #1 have low compression at 140psi

[@TheRA3D85]

I have 2012 srx Cadillac I had zero compression in one cylinder and it was the rocker arm

[@callbackdons]

OP, question about this--when you started noticing the issue, I'm assuming it ran rough and misfired, but was there any color to the exhaust? I'm troubleshooting a misfire in a cylinder with about half the compression it should register, but my exhaust looks normal.

[@joelt8887]

I bought this engine after it was already pulled from the car, so I dont know how it ran. A bad valve won't cause the engine to burn oil (blue smoke). Bad valve seals would cause oil to burn but the valves themselves only direct air... try adding a little bit of oil to the cylinder when you're doing the compression test. If that gives you a dramatic increase in pressure then it would point to the piston rings as the issue. If oil doesn't change anything then it's likely a valve issue.

[@callbackdons]

@@joelt8887 cool thanks for the reply!

[@joelt8887]

@@callbackdons good luck!

[@ronaldopanaligan6975]

My 2001 montero has zero compression in No 1 the rest has 120 to 121 PSI. I have not taken off the head yet. Becausd mybe there is just something lodge under the valve that can be freed

[@TheMemo1776]

is rhe oftermarket head gasket work good?

[@joelt8887]

I used aftermarket gaskets for my rebuild. It seems to have a slight oil leak from headgasket.

[@christianmontesino171]

I have the same issue

[@gokermitsewerside358]

so i have a question i did a compression check on my engine and 1st cylinder came out at 0 compression the other 3 ranged from 100 to 120 its a b18b1 from a 94 acura. is it likely the 1st cylinder has bent valves causing the issue or or cracked like yours? i haven't completely taken off the head because i had people telling me it may have been a timing issue but i was certain it was compression. could timing cause one cylinder to have 0 compression or is it likely damaged like yours? i planned on rebuilding and putting all new gaskets but i dont want to take apart if its a timing issue. i know the 3rd cylinder ranged at 200 or 190 so i am assuming gasket replacement with resurface. any input would be appreciated thank you

[@joelt8887]

In my opinion all 4 cylinders would have similar low compression if it was ONLY a timing issue. Since only one cylinder has 0 compression you probably have an issue similar to mine. The engine will almost definitely need to be taken apart to repair a 0 compression issue. Could be a burnt or bent valve, damaged piston, head gasket, or cracked cylinder wall. Good luck!

[@gokermitsewerside358]

@@joelt8887 thanks i appreciate the response i'm continuing the tear down right now.

[@gokermitsewerside358]

@@joelt8887 after removing the head one of my valves was cracked and my gaskets were blown all around except for the valve cover looks like i gotta rebuild or replace the head.

[@joelt8887]

@@gokermitsewerside358 sounds a lot like mine... at first I considered just replacing the damaged valve and the valve seals but ended up deciding to do a complete rebuild. Doing the finishing touches on it this week!

[@gokermitsewerside358]

@@joelt8887 so are you just replacing the head or same head but replacing internals? i got the car for a steal 650 running but it over heated some reason not sure if lack of coolant or because of the dirty muddy water that got into the block from the radiator i didn't flush it before driving it. are you going to be making a video on it lol?

[@lotso69]

What engine is this?

[@joelt8887]

B18c1 out of a 2000 integra gsr

[@rhinopower67]

Pointless waste of time