low compression in one cylinder piston rings?
#1
Honda-Tech Member
Thread Starter
low compression in one cylinder piston rings?
trying to do some extra mainainence on my b20b i have poor compression ratio in the 1st cylinder and its been beat up on a bit, whats the best thing to do for it? any rings or bearings that should be changed head gasket? opinions please
#4
Honda-Tech Member
Join Date: Aug 2006
Location: Linden, N.J., USA
Posts: 751
Likes: 0
Received 0 Likes
on
0 Posts
Re: low compression in one cylinder piston rings? (MrMug3n)
Look I dont know if you did a good compression test because all those number are really low !! did you do the test or was it done at a shop and did you warm the engine up first or you did it when it was cold ?
#5
Honda-Tech Member
Thread Starter
Re: low compression in one cylinder piston rings? (slvrcvc93)
ya i thought so too i was thinkin it should be around 125-150 im taking it to another guy tomorrow after i do some research on compression specs. have any ideas on what i shoud do if i do have low comp.? thnk its blow by or blown headgasket? i need to get an oil presure reg too
#6
Honda-Tech Member
Re: low compression in one cylinder piston rings? (MrMug3n)
yeah those are some low numbers...
what's the history on the engine? what have you done with is since you've had it?
next: rings, head gasket, valves, catastrophic failures (hole in the piston, crack in the head...).
these are your posiblities. if you price replacements for all of these (excluding the catastrophic possiblities) you'll see why you want to narrow it down to the true root cause.
compression test is the first step. if you don't like the results of the test, you should have it done again to be sure. then, if you still are displeased, have a leakdown test done. this is a bit more accurate and a well trained technician will most likely be able to find the source of the leak.
what's the history on the engine? what have you done with is since you've had it?
next: rings, head gasket, valves, catastrophic failures (hole in the piston, crack in the head...).
these are your posiblities. if you price replacements for all of these (excluding the catastrophic possiblities) you'll see why you want to narrow it down to the true root cause.
compression test is the first step. if you don't like the results of the test, you should have it done again to be sure. then, if you still are displeased, have a leakdown test done. this is a bit more accurate and a well trained technician will most likely be able to find the source of the leak.
#7
Honda-Tech Member
Thread Starter
Re: low compression in one cylinder piston rings? (hondamark35)
yeah, i got the motor from hmotorsonline (60k-70k on it) and have never had an issue with anything that comes from them and it runs fine but it bogs a little b4 4k rpm and kinda feels slower than my old ls =/ no smoke few minor oil leaks but im getting it tested again tomorrow, ill post the results
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post