For more info. on my eBook go to www.scannerdanner.com This is a review of a test procedure I have in my ebook. Section 1 “Universal Testing Methods” page 13…
How to test for a bad head-gasket
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Headgasket, Test
- Categories: Lincoln
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Hey guys, you can buy a kit for under $40 that will do the job of this gas
analyzer that I am using in this video. Here is the link
http://www.walmart.com/ip/19654714?wmlspartner=wlpa&adid=22222222227017319293&wl0=&wl1=g&wl2=c&wl3=35512251276&wl4=&wl5=pla&wl6=50595630756&veh=sem#ProductDetail
CORRECTION TO THE VIDEO: The fact that there’s milky color on the
cap/dipstick does not determine whether you have a bad HG or not, and
here’s why: For every burnt unit of gasoline, the largest byproduct is
water. Now some of that water gets by the piston rings and enters the crank
case. This escaping of burnt gas is referred to as Blow-by. Now
disregarding unburnt fuel and Nitrous Oxides, this gas is mainly CO2 and
water. Mostly water even. And since it has just been burnt, it is still
warm. Thus is a fair quantity of water vapor present in the crank case, and
water vapor likes to condensate on the closest cold area. In many cases
(depending upon engine design) the oil cap and the top of the dipstick are
the coolest part of a warmed-up engine. And that’s how and why you get the
condensation on the dipstick/oil cap.
Its a great way to find head gasket failure but I wouldn’t use it. First of
all I don’t have a $10,000+ machine.
shouldn’t there be additional symptoms? like signs of excessive pressure in
the cooling system? like the radiator cap venting, even though the temps
are normal? or overheating issues because of gas in the cooling system?
The comments were all very helpful .. Thanx everybody ..
A milky coating on the oil cap is common in cold climates on many engine
designs. It is caused by aerosolized oil mixing with condensation and it
isn’t very useful to look at the cap where I live. If you don’t live in a
freeze-your-ass-off part of the world (Russia, south central Canada, north
central USA, etc) then maybe it’s worth checking for milky oil on the
underside of the cap.
Cool, thanks.
My car I recently got ,I had to top up the reservoir with a drop of
water,to keep it cool , two kettles of water over a two months , today I
went through some tests, bringing the car up to temperature then i felt the
pipe coming off ,the radiator confirming heat ,then i checked the pipe
coming out of the back of the thermostat it too was hot, just then I
noticed a tiny little drop dripping at a very slow pace,I drop every 2
minutes just at the thermostat so I thought i had found the problem, then I
opened the oil cap to find yellow bill build up on the cap,the car is
running fine , do you think
It is my head gasket gone , or a gasket seal or something, i cannot see any
fluid around the top of the engine , what do you think ?
Helpful…I would add it seems coffee with milk in extreme cases. Also I
experienced, the coolant bottle is pressurized even after hours the motor
is off.
could a leaky intake gasket cause the same symptom of the milkiness
my symptoms are vibration in the car when engine is cold when warmed its
fine, i do experience milky oil on the cap, steam and droplets out of the
exhaust (when raining only so that symptom might be ruled out) other than
that the car seems great i think headgasket or intake leak but anyone care
to help thanks..
Great video, but how come the coolant didn’t mix with the oil if the gasket
had gone? I’m not saying your wrong im just curious about it thanks
Thanks very much for the video Dan, I appreciate you sharing your knowledge
with us. Is there any way to distinguish between a blown head gasket or a
cracked cylinder head?
I don’t think “it is confirmed that the head gasket(s) are blown”. Oil on
the dipstick seems fine, oil cap is clean. Also, that thingumabob did not
register anything above 1000 after the engine has started
I found that once the car cools enough to take the radiator cap off, you
can restart the car and put your hand over the opening of the radiator
sealing it with your hand and many times with it running, feel the
compression leaking into the cooling system with a bad head gasket.
My car won’t start, I think it’s the tires so I got new blinkers. Thanks
Eric.
I took my car to the shop thinking it was the head gasket and they said
something about a DOP sensor has something to do with the radiator would
that have anything to with symptoms like a leaky or blown head gasket?
How about 60ppm of hc?? I have a suspected blown head gasket and the
analyzer read 60 while car running. Should I worry? Pleaseeee get back to
me :)
Would you expect anything less from a ford?
Dude..Shut the hell up and do the test…It takes you 3 hrs to do a simple
1 minute test…you owe ne 4 minutes of my life and I want it back..
What about a cracked or warped cylinder head(s)? Could that not be the
problem?
the waterpumps on these cars are junk. They break very easily and cause
very bad overheating problems. One super pro about this car is the amazing
air conditioning
Engine Block Test Kit
http://losangeles.craigslist.org/sgv/tls/4583992438.html
My car overheated and I needed it towed to my house..found out it was a
busted hose to the radiator, that I replaced but now evn as it charged
overnight it wont turn over..I checked for milkiness but the oil is just
black and I cant check for white smoke because it wont turn over..What
could be wrong with my car help help help please!!
If you have milkiness on.in your oil cap that doesn’t mean you have bad
head gasket, Most of the time it because the car has been sitting and get
moisture in there.
thanks
I dont get white smoke and coolant and oil are clean just like this car.
but I do get bubbles on cold starts. my radiator hoses gets really hard
too. Is this a bad HG?
Great video! Thanks for taking the time out to explain this in detail. Some
of us do appreciate it.
what if you see oil in your coolant reservoir?
Yeah real helpful – that is if I have a machine worth thousands sitting in
the garage for this. And the walmart tester is just a leakdown checker –
not that same thing.
Contrary to popular belief, a blown head gasket doesn’t always result in
water in the oil or a vehicle that runs hot.
Learn more here:
04 Nissan Frontier 3.3l. 345,000km (215,000 miles)
On cold winter startups show a bit of moisture in the exhast but no smoke.
When the truck begins to warm up it smokes profusely.. I mean BAD. When its
up to operating temp, no more smoke. It started shortly after developing a
tapping, likely a valve train noise. Any suggestion?
an i also pressured tested the coolant system an no leaks my thoughts were
if there was a leak an the system cldnt create any vacuum it wld cause this
but no we r all pulling our hair out on this car!