Recent Topics
49 years ago today....
by pbm
07/20/18 01:24 PM
Why do we care so much about oil?
by camrydriver111
07/20/18 01:14 PM
Which one should I sell/keep?
by SevenBizzos
07/20/18 12:18 PM
What's Shakin' at Amazon Today?
by TheLawnRanger
07/20/18 11:43 AM
2018 Hyundai Accent
by zeke1985
07/20/18 11:15 AM
Fresh footage of my Corvette on-track
by dparm
07/20/18 09:41 AM
Hedge trimmer "resin solvent"
by Rand
07/20/18 09:21 AM
Micrometer-digital
by Gito
07/20/18 09:00 AM
MMO and LSPI?
by KCJeep
07/20/18 08:49 AM
Sludged 2010 Cobalt 2.2 making noises
by jk_636
07/20/18 08:32 AM
Now oil pump while I have the pan off?
by callbay
07/20/18 07:19 AM
Anyone Remember DMSO Solvent ?
by LoneRanger
07/20/18 06:52 AM
aluminun bed in f150 pick um ups
by edwardh1
07/20/18 06:29 AM
Lawnmower 2cycle and 4cycle fuel
by Greaser73
07/20/18 04:00 AM
Rotella T6 5W40, 5000Mi, 1991 Ford 460 - RV
by MutantGarage
07/20/18 12:23 AM
2013 SUBARU Outback, M1EP 0w20, 14190mi, 74465 tot
by NO2
07/19/18 11:52 PM
91 Ford 460 - noisy lifters at Idle when hot
by MutantGarage
07/19/18 11:49 PM
Great deal on PP 5w30
by 60ampfuse
07/19/18 11:48 PM
Motorcraft, 5W-30, 2425 miles, 2018 3.5 F EcoBoost
by cdlamb
07/19/18 11:40 PM
Off-Road Trailer Tires
by troutfisher
07/19/18 09:55 PM
Newest Members
TA128, Elantra16, Peterbilt52, CarllT100, 99SK04GTX
65515 Registered Users
Who's Online
88 registered (adamrc, 69Torino, 2015_PSD, 14Accent, 4WD, 77GrandPrix, 9 invisible), 1689 Guests and 35 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65515 Members
67 Forums
287355 Topics
4793977 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4670462 - 02/19/18 05:06 AM My Honda Accord...major blowby..or..? (vid inside)
TurboTravis Offline


Registered: 07/26/07
Posts: 209
Loc: NY
This is my 2000 Honda Accord 'beater' car. The compression, and more importantly, leakdown numbers are excellent-leakdown was less than 10% on all cylinders. However, it blows a massive amount of air from the oil fill. If you can't tell what I am doing in the video, it's holding a paper towel against the bottom of the hood! LOL! (some swearing in the vid, originally made it to show a good friend). I have no idea what is causing this. PCV system is working properly. Take a guess, if it's something I can look at without tearing it apart too much, I will.

Honda

Top
#4670470 - 02/19/18 05:49 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
skyactiv Online   content


Registered: 03/02/13
Posts: 4506
Loc: The Midwest
Really make sure the PCV is up to snuff and the air filter is clean. I suspect you used a junk leak down tester. There are a bunch of junk tools on the market. You need to attach high pressure supplied air to the cylinder through the spark plug hole and than take the oil cap off. Make sure the cylinder your testing is on the the compression stroke. While your at it, listen through the exhaust, open the radiator cap and if you hear air or see bubbles.... .
The engine could run good for another 100K miles+ that, who knows.
_________________________
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Top
#4670485 - 02/19/18 06:30 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: skyactiv]
TurboTravis Offline


Registered: 07/26/07
Posts: 209
Loc: NY
Originally Posted By: skyactiv
Really make sure the PCV is up to snuff and the air filter is clean. I suspect you used a junk leak down tester. There are a bunch of junk tools on the market. You need to attach high pressure supplied air to the cylinder through the spark plug hole and than take the oil cap off. Make sure the cylinder your testing is on the the compression stroke. While your at it, listen through the exhaust, open the radiator cap and if you hear air or see bubbles.... .
The engine could run good for another 100K miles+ that, who knows.


I know how to do a leakdown test and have the proper tools to perform them. In fact, I have tools for performing a leakdown test that most do not (screw in whistle for indicating compression stroke, spring loaded screw in TDC indicator, etc). With that said, I may change out the actual pressure gauges (or swap them around at least) on my tester just to ensure the equipment is in good operating condition.

Top
#4670492 - 02/19/18 06:41 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
skyactiv Online   content


Registered: 03/02/13
Posts: 4506
Loc: The Midwest
I would just keep driving it and not worry about it if it drives good and doesn't belch out smoke.
_________________________
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Top
#4670502 - 02/19/18 06:57 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: skyactiv]
TurboTravis Offline


Registered: 07/26/07
Posts: 209
Loc: NY
Originally Posted By: skyactiv
I would just keep driving it and not worry about it if it drives good and doesn't belch out smoke.



I agree on all counts! Not worried at all, it's just fun to try to figure it out (without tearing anything apart besides normal service procedures).

Top
#4670506 - 02/19/18 07:12 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
Tman220 Offline


Registered: 09/20/16
Posts: 153
Loc: MN
Most inline 4 cylinders will pulse an alarming amount of air out of the fill cap when running. This is usually normal and nothing to be worried about if it's not displaying any other indications of engine issues.

I'll bet if everyone on this forum pulls the oil cap off their inline 4 cylinder engine while its running will find there is a lot of pulsating air escaping. Stop worrying.
_________________________
2012 Regal GS Turbo PP 5w30
1994 Camaro Z28 LT1 355 CI, 430 RWHP PP 5W30

Top
#4670532 - 02/19/18 07:50 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
bullwinkle Offline


Registered: 10/09/04
Posts: 7740
Loc: Cincinnati, OH, USA
How's the oil burning? If it's not spewing blue clouds all over the place, I wouldn't worry about it too much. If it was really bad, it would be puffing out clouds of smoke out of the oil fill like a steam engine!
_________________________
06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

Top
#4670587 - 02/19/18 08:26 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
CT8 Offline


Registered: 10/09/14
Posts: 11231
Loc: Idaho
A TDC whistle !!!
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

Top
#4670686 - 02/19/18 09:53 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
andyd Offline


Registered: 09/25/04
Posts: 7286
Loc: Marshfield , MA
Coupla times I have forgotten to put the filler cap back on. It takes only a 100 miles to trip the low oil level light. A qt low. OHCs thrash oil compared to rocker arms
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

Top
#4670868 - 02/19/18 12:43 PM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
dbias Offline


Registered: 12/24/14
Posts: 148
Loc: USA
Most 4 cylinders do blow air from the oil fill hole. Nothing wrong at all. Nature of the beast.
_________________________
2011 VW JETTA Castrol Edge 0W-40
2012 FORD TRANSIT CONNECT Castrol Edge 5W-20
2016 HONDA CIVIC COUPE Castrol Edge 0W-20
2017 AUDI A4 Ravenol SSL 0W-40

Top
#4670871 - 02/19/18 12:44 PM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: Tman220]
dbias Offline


Registered: 12/24/14
Posts: 148
Loc: USA
Originally Posted By: Tman220
Most inline 4 cylinders will pulse an alarming amount of air out of the fill cap when running. This is usually normal and nothing to be worried about if it's not displaying any other indications of engine issues.

I'll bet if everyone on this forum pulls the oil cap off their inline 4 cylinder engine while its running will find there is a lot of pulsating air escaping. Stop worrying.



Sorry for my post....you beat me too it.
_________________________
2011 VW JETTA Castrol Edge 0W-40
2012 FORD TRANSIT CONNECT Castrol Edge 5W-20
2016 HONDA CIVIC COUPE Castrol Edge 0W-20
2017 AUDI A4 Ravenol SSL 0W-40

Top
#4670986 - 02/19/18 02:38 PM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
LeakySeals Offline


Registered: 02/18/11
Posts: 6624
Loc: Hudson, NH
So.. you performed the leakdown test with the cap off?
_________________________
06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L 152k ST HM 10w30

Top
#4671310 - 02/19/18 07:27 PM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
bulwnkl Online   content


Registered: 02/09/05
Posts: 1753
Loc: Arizona
Curious: If you are confident of the leakdown test, what is the mechanism you propose which explains the "massive amount of air" expelled through the filler cap?

Top
#4671514 - 02/20/18 02:27 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2453
Loc: Balearic Islands , Spain
All, all the 4 cylinders i've had blow quite a bit air from the fill hole with the engine running, including my recently acquired Escort, don't know why, my other V6 engined Ford doesn't blow any at all.

I made this video last week, engine running hot, you can see the oil mist and air escaping through the fill hole in the video, excuse the valvetrain noise, Ford CVH engines tend to have worn cams and lifters and this is not an exception, runs great though smile

https://www.youtube.com/watch?v=PjL2VCbH5rU
_________________________
1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50.
1988 Ford Escort MkIV 1.6 Xr3i Cabrio, - Comma X-Flow XS 10W-40.
1999 Peugeot 106 II 1.1 Max, On standby

Top
#4671742 - 02/20/18 10:05 AM Re: My Honda Accord...major blowby..or..? (vid inside) [Re: TurboTravis]
KrisZ Offline


Registered: 12/23/06
Posts: 7508
Loc: Toronto, Canada
Is there any type of rocker cover vent tube on this engine or just the PCV?

This might indicate a couple of tight valves. They probably seal ok exactly at TDC, but start to open/close prematurely.
_________________________
2015 Dodge Grand Caravan-21k miles.
2006 Mazda 3-155k miles

Top
Page 1 of 2 1 2 >