How to check for bent valves.
#1
Honda-Tech Member
Thread Starter
Join Date: Nov 2005
Location: Mechanicsburg, PA, Cumberland
Posts: 684
Likes: 0
Received 0 Likes
on
0 Posts
How to check for bent valves.
I have decided to take my car out of the shop where it's been for weeks without progress. I was originally told that I had bent valves so I am wondering how to check which valves are bent so I can have them replaced. The new head was put on and I was told that compression was to low and that they needed to do a leak down test. I thought the only way to check compression was with a leak down test. Anyway if there is low compression what good would a leak down test do.
Any help would be greatly appreciated!
Any help would be greatly appreciated!
#2
well how low is low? if you have bent valves, that cylinder shouldnt' be able to hold very much pressure if at all. that and the engine would run like **** and you would KNOW. my guess is that you don't but w/o more info can't say for sure.
#3
Honda-Tech Member
Thread Starter
Join Date: Nov 2005
Location: Mechanicsburg, PA, Cumberland
Posts: 684
Likes: 0
Received 0 Likes
on
0 Posts
#5
personally i've experienced bent valves and let me tell you even an, excuse me, retard would know that he had bent valves. your engine would run very very rough especially at idle. if you're pondering this, most likely you don't have bent valves. but a leak down test would help to indicate where your engine is at in terms of health. just got to autozone and borrow their kit. do it yourself.
#6
Honda-Tech Member
Join Date: Dec 2004
Location: Las Vegas, NV
Posts: 2,930
Likes: 0
Received 0 Likes
on
0 Posts
^your car wont necessarily run bad if you have bent valves. If their slightly bent, there's a good chance you wont even notice.
A compression test will tell you if your motor is in good health and holds compression in the combustion chamber.
A leak down test will tell you WHAT is not healthy in your engine, and where compression isn't being held
A compression test will tell you if your motor is in good health and holds compression in the combustion chamber.
A leak down test will tell you WHAT is not healthy in your engine, and where compression isn't being held
#7
Honda-Tech Member
iTrader: (1)
Join Date: Sep 2006
Location: San Francisco, CA, US
Posts: 5,347
Likes: 0
Received 0 Likes
on
0 Posts
well OP did specify that he got compression test results of low 100's.. which indicates that something is definately wrong.. if it isn't the head, it sounds to me like your block is the problem. however, as mentioned we cannot tell you over the interweb with the information given. get back to us with the info we're looking for and we can help you out.
Trending Topics
#8
Honda-Tech Member
Thread Starter
Join Date: Nov 2005
Location: Mechanicsburg, PA, Cumberland
Posts: 684
Likes: 0
Received 0 Likes
on
0 Posts
well OP did specify that he got compression test results of low 100's.. which indicates that something is definately wrong.. if it isn't the head, it sounds to me like your block is the problem. however, as mentioned we cannot tell you over the interweb with the information given. get back to us with the info we're looking for and we can help you out.
#9
I remember your post from a while back. Its a shame that no one has even done anything to fix it yet, that was a while ago.
Im not that far away from where you are, and I do make local calls when someone needs a hand with stuff. I can come over there, take your head off and take it to a machine shop that can competently install new valves for you.
Im not that far away from where you are, and I do make local calls when someone needs a hand with stuff. I can come over there, take your head off and take it to a machine shop that can competently install new valves for you.
#10
Honda-Tech Member
Thread Starter
Join Date: Nov 2005
Location: Mechanicsburg, PA, Cumberland
Posts: 684
Likes: 0
Received 0 Likes
on
0 Posts
I remember your post from a while back. Its a shame that no one has even done anything to fix it yet, that was a while ago.
Im not that far away from where you are, and I do make local calls when someone needs a hand with stuff. I can come over there, take your head off and take it to a machine shop that can competently install new valves for you.
Im not that far away from where you are, and I do make local calls when someone needs a hand with stuff. I can come over there, take your head off and take it to a machine shop that can competently install new valves for you.
#11
Well if the head is off. Than checking each cylinders valve is going to be a bit of a hassel, I can pick the head up have it inspected for damages other than bent valves, have it fixed, then reinstall the freshly revalved head for you. And you should be good to go.
I can come out Saturday some time.
Send me a PM so we can iron out the details.
I can come out Saturday some time.
Send me a PM so we can iron out the details.
#12
Re: How to check for bent valves.
well OP did specify that he got compression test results of low 100's.. which indicates that something is definately wrong.. if it isn't the head, it sounds to me like your block is the problem. however, as mentioned we cannot tell you over the interweb with the information given. get back to us with the info we're looking for and we can help you out.
#13
Premium Member
Re: How to check for bent valves.
I had my balance shaft pulley fly out of the timing cover on me the other day there, I was in there recently to put I a retainer clip and I had it back up running everything torques to spec but I guess this pulley needed locktite. I’m trying to figure out if I have bent valves or not, is there a way to figure this out without going out and buying a new belt and a new pulley ? Help would be much appreciated.
#14
Re: How to check for bent valves.
thank for the info helps a lot, forgot to add the timing belt actually snapped in half and to take the crank pulley off to take the timing cover off to get at the timing components I would near to turn the crank at least a little bit to hold it steady to break the crank bolt but the cams don’t move with it. Any suggestions?
#15
Premium Member
Re: How to check for bent valves.
thank for the info helps a lot, forgot to add the timing belt actually snapped in half and to take the crank pulley off to take the timing cover off to get at the timing components I would near to turn the crank at least a little bit to hold it steady to break the crank bolt but the cams don’t move with it. Any suggestions?
Thread
Thread Starter
Forum
Replies
Last Post
LostGsr
Tech / Misc
6
06-15-2001 12:29 PM