S2000 Under The Hood S2000 Technical and Mechanical discussions.

Possible valves got loose while driving

Thread Tools
 
Old Feb 2, 2016 | 03:22 AM
  #11  
Slowcrash_101's Avatar
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2013
Posts: 5,731
Likes: 632
Default

Yep, those jam nuts are stripped, don't drive the car till u get new ones, those valves are badly adjusted. The correct clearance is on the hood.
Reply
Old Feb 2, 2016 | 03:28 AM
  #12  
starchland's Avatar
Member (Premium)
15 Year Member
Photogenic
Liked
Loved
 
Joined: Sep 2007
Posts: 7,340
Likes: 110
Default

How the hell did the far drive like that? Must have had a cel x1000
Reply
Old Feb 2, 2016 | 06:33 AM
  #13  
weekendwarrior44's Avatar
Thread Starter
Banned
 
Joined: Nov 2013
Posts: 83
Likes: 0
From: San Antonio, TX
Default

Originally Posted by s2000Junky
WTF, someone totally fubared a valve adjustment. If you ran it like that id be surprised if you didn't damage something. Exhaust valves that are way too tight (which these clearly are) will stay open during the combustion cycle, and if they dont make contact with the pistons and bend or break your valve tree assy, they will surely over heat and melt down. This would explain why the coolant was boiling over.

Did you adjust the valves this way? Or did the company who replaced your valves? And not only are they not adjusted properly, but someone sure fouled up the nut and threads on those adjusters. Looks like real amateur work here. DO NOT START THIS CAR AGAIN until you can get someone experienced to properly adjust the valves, and hope no serious engine damage was done.
I don't think you read the post right, the valve clearances got like this when i was driving, they were not set like this. the car ran perfect for a about 1k miles before this happened.

the valves where the locknuts look like they're not on all the way actually are not tight at all and have a LOT of play, like i mentioned in the original post the adjuster screw somehow went in probably because the valve is sitting lower than the others the screw has more room to go in and doesn't come out on top as much as the other ones. please try reading the post again.
Reply
Old Feb 2, 2016 | 06:50 AM
  #14  
weekendwarrior44's Avatar
Thread Starter
Banned
 
Joined: Nov 2013
Posts: 83
Likes: 0
From: San Antonio, TX
Default

Originally Posted by windhund116
Are you sure you were at TDC on each cylinder --- relative to the valves --- when you did the adjustments?
yeah i made sure each cylinder was line up correctly when doing it
Reply
Old Feb 2, 2016 | 07:19 AM
  #15  
windhund116's Avatar
Gold Member (Premium)
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2014
Posts: 11,361
Likes: 1,795
Default

Originally Posted by weekendwarrior44
Originally Posted by windhund116' timestamp='1454394927' post='23869015
Are you sure you were at TDC on each cylinder --- relative to the valves --- when you did the adjustments?
yeah i made sure each cylinder was line up correctly when doing it
I'd double check the positions of the cam and crankshaft --- when you adjusted the valves. Just to really be sure. If ok, then all I can think of is valve seat problems.
Reply
Old Feb 2, 2016 | 08:06 AM
  #16  
Slowcrash_101's Avatar
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2013
Posts: 5,731
Likes: 632
Default

The jam nuts have been stripped, so the adjustment screws can no longer be set. First thing to do is see if you can lock the adjustment screw with the lock nut, if not just get new jam nuts, they're cheap. Just toss them on and set your clearance, hopefully it didn't do too much damage. Valves set that tight will destroy themselves once in VTEC, out of VTEC there's more clearance, so you'll just slowly burn them, usually the exhaust valves burn first.

If your adjustment screw is siezed, or won't allow itself to be adjusted properly, you'll have to remove the cams, because the screw is tapered in the bottom and won't screw out that way. If you can't remove it, you'll have to replace the rocker arms in question. I'd buy them used, and get an entire 3 piece matching assembly, best not to take a chance mixing and matching random rocker arm parts.
Reply
Old Feb 2, 2016 | 10:52 AM
  #17  
s2000Junky's Avatar
Community Organizer
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jun 2007
Posts: 31,070
Likes: 566
Default

Originally Posted by weekendwarrior44
Originally Posted by s2000Junky' timestamp='1454396565' post='23869023
WTF, someone totally fubared a valve adjustment. If you ran it like that id be surprised if you didn't damage something. Exhaust valves that are way too tight (which these clearly are) will stay open during the combustion cycle, and if they dont make contact with the pistons and bend or break your valve tree assy, they will surely over heat and melt down. This would explain why the coolant was boiling over.

Did you adjust the valves this way? Or did the company who replaced your valves? And not only are they not adjusted properly, but someone sure fouled up the nut and threads on those adjusters. Looks like real amateur work here. DO NOT START THIS CAR AGAIN until you can get someone experienced to properly adjust the valves, and hope no serious engine damage was done.
I don't think you read the post right, the valve clearances got like this when i was driving, they were not set like this. the car ran perfect for a about 1k miles before this happened.

the valves where the locknuts look like they're not on all the way actually are not tight at all and have a LOT of play, like i mentioned in the original post the adjuster screw somehow went in probably because the valve is sitting lower than the others the screw has more room to go in and doesn't come out on top as much as the other ones. please try reading the post again.
If you didn't touch them, and this is what happened on their own after getting valve work done at a shop, id be on the phone with them emailing this pictures and asking what they intend to do about this. This is not a typical problem. Never mind the fubar stripped threads which may or may not have been a result of self destruction, look at the lock nuts which show complete mishandling of a wrench. Again looks like real armature work here. Again, I would get on the phone with the manager/owner of that shop, send him the pics and push for them towing your car back to their lot on their dime and inspecting the issue, with the intent to repair what ever damage was caused by a clear botching of work on their end. After nearly a decade of being an active member on this website, I have never come across this particular issue/symptom before. It was clearly caused by human intervention/tampering at some part in the stage of events.
Reply
Old Feb 2, 2016 | 11:24 AM
  #18  
weekendwarrior44's Avatar
Thread Starter
Banned
 
Joined: Nov 2013
Posts: 83
Likes: 0
From: San Antonio, TX
Default

Originally Posted by s2000Junky
Originally Posted by weekendwarrior44' timestamp='1454427233' post='23869282
[quote name='s2000Junky' timestamp='1454396565' post='23869023']
WTF, someone totally fubared a valve adjustment. If you ran it like that id be surprised if you didn't damage something. Exhaust valves that are way too tight (which these clearly are) will stay open during the combustion cycle, and if they dont make contact with the pistons and bend or break your valve tree assy, they will surely over heat and melt down. This would explain why the coolant was boiling over.

Did you adjust the valves this way? Or did the company who replaced your valves? And not only are they not adjusted properly, but someone sure fouled up the nut and threads on those adjusters. Looks like real amateur work here. DO NOT START THIS CAR AGAIN until you can get someone experienced to properly adjust the valves, and hope no serious engine damage was done.
I don't think you read the post right, the valve clearances got like this when i was driving, they were not set like this. the car ran perfect for a about 1k miles before this happened.

the valves where the locknuts look like they're not on all the way actually are not tight at all and have a LOT of play, like i mentioned in the original post the adjuster screw somehow went in probably because the valve is sitting lower than the others the screw has more room to go in and doesn't come out on top as much as the other ones. please try reading the post again.
If you didn't touch them, and this is what happened on their own after getting valve work done at a shop, id be on the phone with them emailing this pictures and asking what they intend to do about this. This is not a typical problem. Never mind the fubar stripped threads which may or may not have been a result of self destruction, look at the lock nuts which show complete mishandling of a wrench. Again looks like real armature work here. Again, I would get on the phone with the manager/owner of that shop, send him the pics and push for them towing your car back to their lot on their dime and inspecting the issue, with the intent to repair what ever damage was caused by a clear botching of work on their end. After nearly a decade of being an active member on this website, I have never come across this particular issue/symptom before. It was clearly caused by human intervention/tampering at some part in the stage of events.
[/quote]

Don't think you're reading right again. I set the valve clearances about 1,000 miles ago. I checked all 16 of them 2-3 times after all was done and verified they were all on the looser side while still being WITHIN spec. I'm thinking maybe i torqued down the locknuts incorrectly... I'm having it towed to the shop tomorrow morning
Reply
Old Feb 2, 2016 | 12:31 PM
  #19  
windhund116's Avatar
Gold Member (Premium)
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2014
Posts: 11,361
Likes: 1,795
Default

"Don't think you're reading right again. I set the valve clearances about 1,000 miles ago. I checked all 16 of them 2-3 times after all was done and verified they were all on the looser side while still being WITHIN spec. I'm thinking maybe i torqued down the locknuts incorrectly... I'm having it towed to the shop tomorrow morning."

Just to be sure... after you adjusted the valves (1,000 miles ago) --- the adjustment screws looked like this?

https://i.imgur.com/WJph7Q0.jpg

https://i.imgur.com/vKtXb0E.jpg

Because, I highly doubt they tightened up, on their own --- in 1,000 miles of driving.
Reply
Old Feb 2, 2016 | 12:53 PM
  #20  
s2000Junky's Avatar
Community Organizer
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jun 2007
Posts: 31,070
Likes: 566
Default

Originally Posted by weekendwarrior44
Originally Posted by s2000Junky' timestamp='1454442725' post='23869566
[quote name='weekendwarrior44' timestamp='1454427233' post='23869282']
[quote name='s2000Junky' timestamp='1454396565' post='23869023']
WTF, someone totally fubared a valve adjustment. If you ran it like that id be surprised if you didn't damage something. Exhaust valves that are way too tight (which these clearly are) will stay open during the combustion cycle, and if they dont make contact with the pistons and bend or break your valve tree assy, they will surely over heat and melt down. This would explain why the coolant was boiling over.

Did you adjust the valves this way? Or did the company who replaced your valves? And not only are they not adjusted properly, but someone sure fouled up the nut and threads on those adjusters. Looks like real amateur work here. DO NOT START THIS CAR AGAIN until you can get someone experienced to properly adjust the valves, and hope no serious engine damage was done.
I don't think you read the post right, the valve clearances got like this when i was driving, they were not set like this. the car ran perfect for a about 1k miles before this happened.

the valves where the locknuts look like they're not on all the way actually are not tight at all and have a LOT of play, like i mentioned in the original post the adjuster screw somehow went in probably because the valve is sitting lower than the others the screw has more room to go in and doesn't come out on top as much as the other ones. please try reading the post again.
If you didn't touch them, and this is what happened on their own after getting valve work done at a shop, id be on the phone with them emailing this pictures and asking what they intend to do about this. This is not a typical problem. Never mind the fubar stripped threads which may or may not have been a result of self destruction, look at the lock nuts which show complete mishandling of a wrench. Again looks like real armature work here. Again, I would get on the phone with the manager/owner of that shop, send him the pics and push for them towing your car back to their lot on their dime and inspecting the issue, with the intent to repair what ever damage was caused by a clear botching of work on their end. After nearly a decade of being an active member on this website, I have never come across this particular issue/symptom before. It was clearly caused by human intervention/tampering at some part in the stage of events.
[/quote]

Don't think you're reading right again. I set the valve clearances about 1,000 miles ago. I checked all 16 of them 2-3 times after all was done and verified they were all on the looser side while still being WITHIN spec. I'm thinking maybe i torqued down the locknuts incorrectly... I'm having it towed to the shop tomorrow morning
[/quote]

I think I'm reading just fine, but maybe its between the lines I'm thinking you probably shouldn't do valve adjustments anymore based on what what's being shown in this thread. I hope no serious damage was done other then needing to replace your lock nuts and adjusters.
Reply



All times are GMT -8. The time now is 10:24 PM.