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  #1  
Old 11-09-2010, 08:35 PM
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Shade Tree Welder Shade Tree Welder is offline
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Default NH TC40DA Tractor Rant (Formerly the HF trip thread)

Having some issues with the New Holland TC40DA diesel tractor.
Long story but not sharing it yet as it REALLY pisses me off.

But the next step is testing compression in the cylinders. I know
the cylinder I am having issues with, #3. So I am picking one of
these, compression tester because I believe I have it narrowed
down to bad rings or f-upped injector on number 3 cylinder. I get
lotsa smoke with a strong diesel odor (I think injector gone bad)
and there is a loud knock with the engine running. Disconnecting
the fuel selinoid and cranking the engine does not reveal any
unusual noises like a rod knock. The smoke gets worse with time
as the engine is running (so I think bad rings), so I want to test the
compression of each cylinder and see what I get.

Really my question here does anyone know a really good deals they
are having at HF right now? Always looking for a good score.
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  #2  
Old 11-09-2010, 08:50 PM
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Lu47Dan Lu47Dan is offline
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Quote:
Originally Posted by Shade Tree Welder View Post
Having some issues with the New Holland(FORD) TC40DA diesel tractor.
Long story but not sharing it yet as it REALLY pisses me off.
Ron, I know how much of a pain in the butt diagnosing problems with diesels can be, remember the Lombardini.
Dan.
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  #3  
Old 11-09-2010, 08:55 PM
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Shade Tree Welder Shade Tree Welder is offline
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Well they ain't Ford's anymore this is a 2007; yup just outta warantee.
They are owned by Fiat these days and this particular tractor is made in
Japan. New Holland purchased the Jap company a few years back as they
made a good line of compact tractors, I can get the name if any one is
interested, but IMO, CNH has owned them just long enough now to have
screwed them up....
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  #4  
Old 11-09-2010, 10:05 PM
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Failure
In
Automotive
Technology

or

Fix
It
Again
Tony

Not familiar with Diesels but I can say this: Compression tests on gasoline engines that smoke won't always show up on a compression test. In fact, the cylinders that are smoking generally show a higher compression due to excessive carbon build up and the extra oil on the cylinder walls. If the smoking is caused by a defective oil control ring even a leakdown test will be good. Being a diesel I guess you can't look for oil on the spark plugs. Like I said, don't know jack about diesels. Does this engine use glow plugs on each cylinder? If so, maybe you can inspect them to see which one is the oil burner (although technically aren't they all oil burners burning diesel?)
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  #5  
Old 11-09-2010, 10:33 PM
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rmack898 rmack898 is offline
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Ron,
If you get the HF junk mail, the most recent one has a small print bar code that's good for 20% any one item, they usually have the same flier that goes out in the mail at the entrance to the store.

Wrap a rag around the susspected injector and break the nut loose on the fuel line to the injector with the engine running to see if the knock goes away. A leaking or over fueling injector will knock like hell and breaking the fuel nut will eliminate that injector.

I'm with MD that a leak down test is the only way to really diagnose a bad cylinder.
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  #6  
Old 11-09-2010, 10:50 PM
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Caliber Caliber is offline
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Don't rule out a stuck / bent valve. To see which one it is, start it up cold and take temp readings across exhaust manifold to see which cylinder runs cold. That will be the bad one. Than I suggest you pull the injector and see what the tip looks like, chances are it might be broke. If not swap in place of a different injector and re-run the exhaust temp test to see if it follows the injector or stays with the cylinder. If it stays with the cylinder pull the valve cover and look for a bent / sticking valve.
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  #7  
Old 11-09-2010, 11:53 PM
Cello Cello is offline
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is a link to see all current adds for Harbor Freight
http://www.harborfreight.com/retail-flyer
If you bookmark it you can always see what sale are on and enter you email address and they will email them to you along with coupons
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  #8  
Old 11-11-2010, 02:10 PM
Reptile Reptile is offline
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Quote:
Originally Posted by Shade Tree Welder View Post

Really my question here does anyone know a really good deals they
are having at HF right now? Always looking for a good score.

Here's some of the present coupons.

http://www.harborfreight.com/woodmag...ail=2764463985
http://widgets.harborfreight.com/wsw...5&keycode=0000
http://www.harborfreight.com/extra-s...campaign=4510b
http://widgets.harborfreight.com/wsw...9&keycode=0000
http://widgets.harborfreight.com/wsw...9&keycode=0000
http://www.harborfreight.com/faceboo...paign=facebook

20% off coupon
http://www.harborfreightusa.com/html...mages/20_c.jpg

25% off Thanksgiving Day coupon
http://images.harborfreight.com/cpi/...ing_coupon.jpg

Some coupons for free stuff.
http://images.harborfreight.com/hftw...ges/free_c.jpg
http://www.harborfreightusa.com/html...es/flash_c.jpg

Last edited by Reptile; 11-12-2010 at 11:52 AM. Reason: added a few things
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  #9  
Old 11-11-2010, 05:34 PM
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TEK TEK is offline
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Quote:
Originally Posted by MotorDoctor View Post
Failure
In
Automotive
Technology
or
Fix
It
Again
Tony
and then there is:

Feeble
Italian
Attempt at
Transportation

(no offense to my Italian brothers)
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  #10  
Old 11-11-2010, 07:03 PM
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Ron and others,

This is a little late for Ron's trip to HF, but I thought I would add it to the might want to have list. Below is a link for a HF air blow gun. I got real tired of trying to get parts and other things clean using the company supplied OSHA approved blow guns. They just do not have the force to be of much use other than blowing dust off a bench. This HF model is an expandable one, so it fits in my tool bag when collapsed. It allows a nice high pressure pin pointed stream of air that will displace most of the common debris and stuff when doing repairs and general cleaning. I liked it so much I bought another one for the home shop. One thing you may want to do if you get one, is remove the trigger valve and apply a little silicon grease or Vaseline. I found that the valves on mine were fairly dry, and started to bind a little after a few uses. Be sure to wear eye protection with this model.

http://www.harborfreight.com/telesco...gun-44559.html
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