Define "significant rush of air". I filled my 85 diesel up this morning and when I opened up the cap, I heard a tiny bit of air come out, but it didn't really raise a whole lot of suspicion.

__________________
Never be ashamed to ask for help.

1985 300D
1987 300SDL
1970 Jaguar E-Type OTS
2002 Dodge Intrepid (Traded In)
2011 Ford Crown Victoria

Define "tiny bit."

The valve in the vent system will allow a slight positive or negative pressure differential, so a slight rush of air (subjectively defined) is not abnormal.

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When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.

ROTFL.



If a few tiny drops of water hit you, you are not wet.
If a Significant amount of water hits you, you are wet.

__________________
85 300D 3 pedal. Current project.
83 300TD (need rear wiper assembly dead or alive)
84 300SD Daily driver
85 300TD almost 400k miles and driven daily.
98 E300D *sold
86 300SDL *sold and made flawless 10 hour journey to new home.

.

well I took a video today to determine noise level while opening
tank cap after 30min ride:

17032012069 - YouTube

does it sound bad?

p.s sry for filthy hands,just finished repairing front window holder...


.

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w126 500SEC gen II euro, powered by OM617 turbo stolen from 84 300SD 2.88 diff,EGR blinded
next wish/project: w114 coupe OM603 powered

Cant really tell, need more info like ambient temp and if there was a temp change during your test. ie: was in a cold garage and then was brought out into ambient 20*F warmer....or vice versa.



Are you located in Virginia? Your forum location says Europe, but your video title is a local phone number for me.


Since the pressure change at the fuel cap is subjective, I will pay closer attention on my car. I have to fuel in the next couple days and will share.

Saw your other 4 vids, what is an "MW pump" ?
I noticed fresh yellow antitamper markings on the Delivery valves and Alda, assuming maybe "Injection Pump".

nope it was 23C whole day (thats 73F) so no temp change..

that number is youtube attached and I m too lazy to change it to
something title-ish

MW is one form of mechanical Injection Pumps, bit more powerful and robust compared to simpler and smaller M pumps...

so strange...you have knowledge of ALDA and delivery valves
and none about MW's

cheers mate

ChO


.

__________________
w126 500SEC gen II euro, powered by OM617 turbo stolen from 84 300SD 2.88 diff,EGR blinded
next wish/project: w114 coupe OM603 powered

I think it is air rushing IN. If the vent is clogged, a vacuum is created inside the tank.

__________________

All Diesel Fleet
1985 R107 300SLD TURBODIESEL
2005 E320 CDI (daily)

LOTS of parts for sale!


EGR block kit
http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html

1985 CA emissions 617 owners- You Need This!
Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst.

Sanden Instalation Guide (post 11):
http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html