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TD9Head Gasket

M

Mike Farmer

Member
Gretings. A friend has a head problem with his TD9. Bubbles in the radiator but fortunately no sign of any oil at this stage. Hopefully its only the gasket but the head has to come off whatever. So he is in need of a head gasket and we are unable to source one at this stage. So anyone out there able to help and I'll put him in direct contact with you. Thanks in advance. Mike
 
It is probably a cracked head. When you call for the gasket call it a WD-9 and it will be easier. The motor parts are all the same.
 
I have never had a blown head gasket on a D335 or D350 engine--always a cracked head when that happens. Remove the head and check it out before you spend the money on a head gasket. Finding a replacement head will be much more difficult than sourcing a head gasket.

I bought some head gaskets from CNH for the D335/D350 engines last fall. CNH part number 273668R3. They are composite gaskets now, the original metal ones are no longer available. I have not heard any complaints about the composite ones.
 
why always presuming? take it apart and find the problem then its parts sourcing time all at once.
case ih sells the head gaskets.
 
(quoted from post at 10:45:14 02/09/13) why always presuming? take it apart and find the problem then its parts sourcing time all at once.
case ih sells the head gaskets.
Click to expand...

I ASSUMED that it was coming apart no matter what. Also, if it is pressurizing the system you would be DARN sure I would take it in and have it checked before I just throw a $200 head gasket on it. Actually, I would take it in and have it checked just about any time I had the head off.
 
I agree--it is always wise to have a shop test a gas start diesel
head. Often, the cracks (usually more than one) are big enough that
you can see them. Cracked heads are really common--I have four
cracked ones piled up in my shop now.
 
I have a completely rebuilt head for a TD-9 if you end up needing one. It is an early one with the smaller injector holes.
 
Make sure you know if you have a d335 or d350 engine. Recently a friend of mine put a d335 gasket in a d350 and did not realize it was sitting ON TOP of the fire wall on the sleeve. It broke every sleeve when he torqued it!
 
The stock D335 and D350 used the same head gasket UNLESS that D335 had 4.5" overbore sleeves put in it then there is a different head gasket used for those overbore sleeves only. The overbore sets were not common in my area so I never have had to worry about using the wrong gasket. The D335 overbore head gasket if used on original D335 4.4" sleeves or a D350 will rest on top of the firewall of the sleeves causing serious problems. I have a really good explanation of the head gasket & sleeve differences from Weber Tractor parts that I can send to anyone who wants it.
 
I would certainly take a copy of that.

Do you, or anybody else, know much about punching 4.4" sleeves out to 4.5" sleeves? I have read on RPM that it can be done and actually have a parts motor that has had it down, but that doesn't mean it should be done.
 
sflem849--the info I have about the WD-9 head gaskets is well
written by Weber's and I think I may have taken it off of the RPM
site. It had good detail, complete with accurate sleeve dimensions
and details on the applications for the two different head gaskets
that were used on D335's & D350's. All I really did was organize it a
little and put it on a proper document so that I would have it for
future reference.

What is the best way to get it to you? Do you have an e-mail
address I can send it to?
 
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