Block damage..
 

My rings blew out. I've pulled the block, I'm dropping the pistons to have a look.

My buddy says that when they break, they can scratch the walls. If the walls are not "visably" damanged, do you think still need my block honed and such before I slap new rings in it?

Re:Block damage..
 

Dropping the pistons? you mean popping the pistons.. ;)


Sometimes you can get lucky, I have seen ring lands break on every piston and not even scratch the cylinder walls. Once you remove the head, you will be able to see how much damage is done. I always like to throw in a quick hone job when putting new rings in, just so they seal correctly.

Jeff

Re:Block damage..
 

There doesn't seem to be any damage in the cylinders. I mean like anything noticeable.

I'll be pulling the pistons and rings today and I'll post pictures.

Check out my head.. Broke lands on 1, 2, and 3 psitons it seems. Oil everywhere.

http://www.driftkids.com/pics/D16Z6_Head_Valves_1.jpg

Re:Block damage..
 

Ok, need help...

I can't seem to get the great that the timing belt goes around off. (Yes, this is the first time I have taken apart a block.)

Seems to stop pulling off almost half way. Here is a pic, note, it's upside down at the moment.

http://www.driftkids.com/pics/Timing_Belt_Gear.JPG

Any ideas on removal? Is there some little trick? I can't find anything in my Haynes manual.

Re:Block damage..
 

it should slide off with your hand.. that is the crank gear.

Spray massive lube, maybe some ---- got in their... May have to get a pry bar from both sides and work it off like some crank pulleys.

Jeff

Re:Block damage..
 

Hahah.. thakns Jeff, I was scared to put pressure on it. But, I gave her a pry and a little elbow grease, she popped right off.

Thanks for the quick response, you forum stalker. ;)

Re:Block damage..
 

OK, Jeff, here's a another one..

Just got all my pistons out, checked the rings and landings.. all seem fine. :-\

I'm at a loss. Headgasket was fine.

Any ideas on why I wouldn't be able to go over 45mph, and a HUGE cloud of white smoke would lay across 3 lanes of highway? ??? ???

Re:Block damage..
 

Valve seals have gone out? Head warped? Either would cause this as well. Perhaps even skipped a few teeth on the timing belt.. Not that it would cause the massive oil you have on that head.

Re:Block damage..
 

replace the piston rings, replace valve seals(well mine as well replace all seals since its out) then have a valve job done. then youll be all set....cant go wrong :D

Dane

Re:Block damage..
 

first off. if you had white smoke why did you pull the pistons out? that is for sure coolant burning.

get the head resurfaced take a razor and get all the gasket off the block and put a new head gasket on. thats probably the problem.

have them check to make sure your head isnt warped also.

Re:Block damage..
 

I pulled the pistons because I'm getting the block sleeved anyway..

The block was an 88 CRX D16.. had 214,000 miles on it anyway.

I was just surprised when I pulled the pistons, all was well.

Head warp? Hrm, I did a 3 way check with a straight edge and feeler gauges. Didn't seem warped.

I don't know too much about the valve train. A little nervous to take that apart. But, I'll have it checked out. Maybe have a port and polish done on it with my tax refund when I get the block sleeved.

Is tehre any test I can do on my head to check the valve seats?

Re:Block damage..
 

beats me... it could be alot of things.. did you do a compresson test dry/wet before you took the engine apart?

Jeff

Re:Block damage..
 

white smoke is anti freeze and oil in the cumbustion chamber. thats what that is.

thats a bad headgasket, bad valve seals possibly as well.

just do a whole motor rebuild since its apart and have the head milled a couple mm. "couple like 1.5 or less"

when the rings are bad you will get black smoke because the oil is seaping up through the rings into the combustion chamber. a blueish smoke can be vavle seals dropping oil from the cams in there.

its wierd how it works.
a quick way you could have checked was to look for oil in the anti freeze when that happened.

Re:Block damage..
 

ricky i thought black smoke isnt usually from oil(thought it was always blue), but from a poorly tuned fuel system....feel free to inform me

Re:Block damage..
 

Ya, I lost compression over 1 2 and 3 cylinders. But I was under the assumption my head was good. I haven't run that head very long, maybe 3 months.

I always understood black smoke to be a too much fuel.

..and blueish whiteish smoke to be either oil or coolant.

Oil would just be the smoke, and coolant would have a sweet smell when it burns. I could be wrong..

Re:Block damage..
 

This is my understanding on a few of these:
black smoke: Running very rich, very bad rings(oil gets through combustion chamber unburnt)
white smoke: Burning coolant, running extremely rich
blue smoke: Burning oil through rings/head gasket/valves

I pulled my head gasket a few times after seeing white smoke only to see that everything was fine. I must have been running a bit too rich.

Re:Block damage..
 

all i know is when i blew my headgasket it was white smoke, and when my car runs rich its puffs out black a little

Re:Block damage..
 

u got one right.
black smoke: Running rich.
white smoke: Burning coolant.

:)