Bought a civic with low compression, ideas? - Honda-Tech - Honda Forum Discussion


Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Bought a civic with low compression, ideas?

Reply
 
 
 
Thread Tools Search this Thread
Old 03-15-2017, 12:34 PM   #1
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2017
Posts: 16
Default Bought a civic with low compression, ideas?

So I have a 2000 civic, didn't run when I bought it and was told the compression was low. Ran the numbers and it's like 10-50psi on all 4 cylinders. Timing belt is in good shape and the mechanical timing is good. Any ideas? No oil in the coolant and no coolant in the oil so I don't think it's a bad head gasket. This really seems like the timing belt snapped, smashed the valves and they threw on a new timing belt? I can't really think of anything else. Unless they ran a **** load of dirt into the engine and destroyed the rings on all 4. But I find that highly unlikely.
onelostcoupe is offline   Reply With Quote
Old 03-15-2017, 01:13 PM   #2
Honda-Tech Member
 
Chance EG's Avatar
 
Join Date: Jan 2013
Posts: 365
Default Re: Bought a civic with low compression, ideas?

If you're getting 10-50psi across all 4 cylinders, the internals are toast.
Chance EG is offline   Reply With Quote
Old 03-15-2017, 03:00 PM   #3
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2017
Posts: 16
Default Re: Bought a civic with low compression, ideas?

yeah, she's fucked. Took the head off and number 4 piston doesn't move. I don't really understand how that would **** up the compression on the other 3 though.
onelostcoupe is offline   Reply With Quote
Old 03-15-2017, 06:53 PM   #4
Honda-Tech Member
 
Join Date: Jan 2017
Location: Central Iowa
Posts: 57
Default Re: Bought a civic with low compression, ideas?

Time for a b swap and make it fun
Tylers88 is offline   Reply With Quote
Old 03-15-2017, 07:01 PM   #5
Honda-Tech Member
 
Chance EG's Avatar
 
Join Date: Jan 2013
Posts: 365
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by Tylers88 View Post
Time for a b swap and make it fun
Probably. Don't waste your time or cash just replacing it with another D.

Pretty sure you could do an LS swap for the same cash, or a B16A for slightly more. Either would be more fun, just as reliable, and probably about the same MPG.

Depends on what you want to use the car for but there's a ton of options.
Chance EG is offline   Reply With Quote
Old 03-15-2017, 07:25 PM   #6
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2017
Posts: 16
Default Re: Bought a civic with low compression, ideas?

******* wow. I pulled the motor and prepped my spare d16y7 to drop in, got it installed to the point where I could run it and guess what? This motor is fucked too, same cylinder 4 with a thrown rod. I got scammed as **** on craigslist.
onelostcoupe is offline   Reply With Quote
Old 03-15-2017, 08:04 PM   #7
Honda-Tech Member
 
Join Date: Jan 2017
Location: Central Iowa
Posts: 57
Default Re: Bought a civic with low compression, ideas?

That sucks to hear about the spare
Tylers88 is offline   Reply With Quote
Old 03-15-2017, 10:11 PM   #8
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2017
Posts: 16
Default Re: Bought a civic with low compression, ideas?

Incredible someone would intentionally rip someone off like that. He insisted it ran great when pulled. But the fact that the piston doesn't even move shows it was ran hard until it died.

On that note, why does that happen? This replacement motor has the same problem my original one did, cylinder 4 threw a rod. And I've also seen that happen on a friend's 94 civic D15B7.

Does the oil pump go bad and cylinder 4 is the furthest away? Or Did all of these civics run low on oil and one hard left or right turn sloshed the little bit of oil away from the pick up?
onelostcoupe is offline   Reply With Quote
Old 03-16-2017, 01:18 AM   #9
Honda-Tech Member
 
Join Date: Jan 2015
Posts: 959
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by onelostcoupe View Post
******* wow. I pulled the motor and prepped my spare d16y7 to drop in, got it installed to the point where I could run it and guess what? This motor is fucked too, same cylinder 4 with a thrown rod. I got scammed as **** on craigslist.
Scammed on Craigslist? No way!..lol
Did you buy an already pulled motor or one that was running that you could test?
Jimi Hondrix is offline   Reply With Quote
Old 03-16-2017, 03:27 AM   #10
O.G. triple O.G.
 
NVturbo's Avatar
 
Join Date: Dec 2003
Location: Noeth Cacolac, USA
Posts: 3,635
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by onelostcoupe View Post
Incredible someone would intentionally rip someone off like that. He insisted it ran great when pulled. ...........?
That happens everyday. People will take advantage of others whenever they have the chance. A few months ago, I met up with a seller on Craigslist selling a set of "used" Integra tail lights. When I got home and thoroughly checked, one of the lights had a noticeable crack on the side portion. Contacted him and he acted like it was in perfect condition when he handed them to me. ****** shady asses.

Don't sweat it. Karma is a bitch. POS that do stuff like that will get their day.
NVturbo is offline   Reply With Quote
Old 03-16-2017, 05:02 AM   #11
Honda-Tech Member
 
Join Date: Sep 2010
Posts: 55
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by onelostcoupe View Post
******* wow. I pulled the motor and prepped my spare d16y7 to drop in, got it installed to the point where I could run it and guess what? This motor is fucked too, same cylinder 4 with a thrown rod. I got scammed as **** on craigslist.
Craigslist transactions definitely force you to improve how thoroughly you inspect future purchases. I recently got a "complete A/C system" pulled from a civic and didn't do enough research to realize that he skimped me on a few small parts, that aint happening to me again. Stock D series motors though aren't really designed to be abused, they're fuel economy engines, that's why so many people blow them up imo. Do an ls or b20 swap
dck1ng69 is offline   Reply With Quote
Old 03-16-2017, 06:29 AM   #12
Honda-Tech Member
 
tony_2018's Avatar
 
Join Date: Nov 2005
Location: Towards nipon
Posts: 9,585
Default Re: Bought a civic with low compression, ideas?

Low compressoin? Ok to boost, than buy another motor.
tony_2018 is offline   Reply With Quote
Old 03-16-2017, 07:06 AM   #13
Honda-Tech Member
 
Join Date: Jan 2017
Location: Central Iowa
Posts: 57
Default Re: Bought a civic with low compression, ideas?

You may be out the money and an engine right now but I'd go dump the bad engine in his lawn in the middle of the night
Tylers88 is offline   Reply With Quote
Old 03-16-2017, 07:46 AM   #14
O.G. triple O.G.
 
NVturbo's Avatar
 
Join Date: Dec 2003
Location: Noeth Cacolac, USA
Posts: 3,635
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by dck1ng69 View Post
Craigslist transactions definitely force you to improve how thoroughly you inspect future purchases. I recently got a "complete A/C system" pulled from a civic and didn't do enough research to realize that he skimped me on a few small parts, that aint happening to me again. Stock D series motors though aren't really designed to be abused, they're fuel economy engines, that's why so many people blow them up imo. Do an ls or b20 swap
People blow up D series engines along with any other engine due to carelessness and neglect. 99% of the time, they have no clue what they're doing anyways....hence my sig.
NVturbo is offline   Reply With Quote
Old 03-16-2017, 12:42 PM   #15
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2017
Posts: 16
Default Re: Bought a civic with low compression, ideas?

I wish I could have checked it further, I guess I should have brought a spark plug socket and put a rod into the cylinders to check if 1 and 4 moved in sync and 2 and 3 moved in sync. But I did test if it turned over with a breaker bar which it did. I didn't think it was too much effort to turn it over either.
onelostcoupe is offline   Reply With Quote
Old 03-17-2017, 08:34 AM   #16
Honda-Tech Member
 
Matt_EH3's Avatar
 
Join Date: Aug 2013
Location: Canada
Posts: 229
Default Re: Bought a civic with low compression, ideas?

Get yourself a compression tester and carry around a spare battery when checking engines. The cold compression test will not be accurate, but you will at least know if all parts of the engine are moving.
Matt_EH3 is offline   Reply With Quote
Old 03-17-2017, 08:40 AM   #17
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2017
Posts: 16
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by Matt_EH3 View Post
Get yourself a compression tester and carry around a spare battery when checking engines. The cold compression test will not be accurate, but you will at least know if all parts of the engine are moving.
Wait, how would I do a compression test if I'm just buying a motor? The starter bolts to the trans? This particular motor had no flywheel, no pressure plate, no trans, nothing.
onelostcoupe is offline   Reply With Quote
Old 03-17-2017, 10:20 AM   #18
Honda-Tech Member
 
Matt_EH3's Avatar
 
Join Date: Aug 2013
Location: Canada
Posts: 229
Default Re: Bought a civic with low compression, ideas?

Ah, good point. Never mind then. I guess I never bought a tranny-less motor
Matt_EH3 is offline   Reply With Quote
Old 03-18-2017, 08:25 AM   #19
Honda-Tech Member
 
joey1320's Avatar
 
Join Date: Oct 2002
Location: OuterSpace
Posts: 2,318
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by onelostcoupe View Post
Wait, how would I do a compression test if I'm just buying a motor? The starter bolts to the trans? This particular motor had no flywheel, no pressure plate, no trans, nothing.

You prop open the throttle butterfly and attach a socket/wrench to the crankshaft bolt and spin the engine manually. It's not going to give you the most accurate readings but as long as they are all within 20% stock, the you have a healthy engine.
joey1320 is offline   Reply With Quote
Old 03-18-2017, 08:57 AM   #20
Honda-Tech Member
 
Join Date: Feb 2016
Posts: 1,317
Default Re: Bought a civic with low compression, ideas?

Just removing the spark plugs to look at the business end of them can tell a lot about engine condition. If the spark plugs are in and the timing belt is on, you should feel compression resistance every 180 degrees you turn the crank. If you feel compression, compression, then it just spins over through one cycle, there is a dead cylinder.

Last edited by mk378; 03-19-2017 at 06:17 AM.
mk378 is offline   Reply With Quote
Old 03-18-2017, 05:02 PM   #21
Honda-Tech Member
 
tamboo's Avatar
 
Join Date: Jul 2013
Location: sleeping in a 95 gs-r
Posts: 1,407
Default Re: Bought a civic with low compression, ideas?

tamboo is offline   Reply With Quote
Old 03-19-2017, 05:48 AM   #22
Honda-Tech Member
 
Join Date: Jan 2015
Posts: 959
Default Re: Bought a civic with low compression, ideas?

Quote:
Originally Posted by joey1320 View Post
You prop open the throttle butterfly and attach a socket/wrench to the crankshaft bolt and spin the engine manually. It's not going to give you the most accurate readings but as long as they are all within 20% stock, the you have a healthy engine.
To add to this: Remove all spark plugs first for easier cranking. Follow up the dry test with a wet (cap full of oil) test in each cylinder. If compression rises significantly then could be a compression ring(s) issue.
Also, as mk378 mentioned..inspect spark plugs:

Jimi Hondrix is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Major problems after timing belt change dgdarien Honda Civic / Del Sol (1992 - 2000) 12 02-20-2016 10:44 PM
Head gasket or something else? SonicC Honda Civic / Del Sol (1992 - 2000) 27 10-02-2015 10:19 PM
SYMPTOMS OF THE SOL MUHAHA (head gasket and overheating problems) droar Honda Civic / Del Sol (1992 - 2000) 10 01-22-2012 10:24 PM
missing coolant WTF? oneludesol Honda Prelude 11 02-26-2010 02:52 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 08:45 AM.


 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: