440ICD air leak????????????????????????
440ICD air leak????????????????????????
Okay, maybe I am dreaming, but I swear that when I had the crawler running in the shop and sprayed some brake cleaner on the blower side of the engine, it seemed to pick up just slightly. On a gas engine, obviously an air leak, but what the heck would it be on a diesel? I can't find any obvious reasons, and was not spraying around the intake elbow, although tried it later with no change.
Lavoy
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
any air leaks past the blower would be pushing air out not sucking in so the only way that i know of would be you must have gotten some near the intake or you need someone to wake you up
2010 with 622 dozer with mod. 35 ripper and a 2010 with 622 dozer bought in 1969 and a 2010 loader with drott and mod. 36 ripper
- DukeofDeere
- 1010 crawler
- Posts: 443
- Joined: Wed Oct 26, 2011 7:12 am
- Location: Hudsonville Michigan
Yeah I know, but I was able to repeat it a couple times, that is what has me stumped. I had the intake elbow off, cleaned it up, and put it back on with gasket sealant so it can't be leaking.
Lavoy
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
you know, that cold dakota air and spraying that housing might have condensed the air enough to make it do that....maybe formed ice crystals inside? i dont know,,, you got me thinking outside of the box.
440icd/602/8a,,440icd/831/ripper,,440icd/831/3pt.,misc. 440 parts, i have 5 of these now, but i can stop anytime
Had it in the shop while doing it, so not a cold issue. I was wondering if it could be vapor even though the top of the air cleaner is a ways away. I think I am going to check the steel pipe and the two elbows a little closer just in case.
If the new elbow samples I have coming work, I will replace both of them regardless.
Lavoy
If the new elbow samples I have coming work, I will replace both of them regardless.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
- gregjo1948
- 350 crawler
- Posts: 1000
- Joined: Mon Aug 30, 2010 5:58 am
- Location: Newark Valley,NY,USA
440 ICD air leak
How volatile is brake cleaner? Aerosol propellant is explosive and may be finding a path to your intake. I would think the slightest explosive mist around the intake of an engine with a blower, would be forced into the engine and creating a change in rpm. gregjo1948
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford
Depends on the brake cleaner, but the stuff I am using is probably about like carb cleaner. I thought about that too, but I was spraying about 3 feet from the air cleaner intake in a shop with no breeze, so had ruled that out. Plus, it only occurred when spraying directly in the area of the blower, not any place else.
Lavoy
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
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- 40C crawler
- Posts: 14
- Joined: Thu Aug 02, 2012 5:08 pm
At a garage I used to work in we regularly substituted brake cleaner for either, mostly trying to get them hateful mercedies benz engines to pick up there fuel after a service. we found the brake less sharp then either for the engine to run on, still had that distinctive sound of a diesel on either but much less harsh.
My brother, who was a wrecker/salvage/dealer of motorcycles and sleds for most of his life, suggested to me that to check the crank seals on sleds spray a little either near the pulley and if the engine picks up a little they are leaking. Perhaps you have a seal, gasket or something similar happening.??
Scott
Scott
450`s c-dozer 6 way, b-loader.
350`s c-loader + ripper, b-loader with winch arch. B-loader with dozer pads
backhoe attachment.
1010 loader with forks for round bales
a few 610 Bobcats. many attachments
350`s c-loader + ripper, b-loader with winch arch. B-loader with dozer pads
backhoe attachment.
1010 loader with forks for round bales
a few 610 Bobcats. many attachments
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