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View Full Version : 797 Blew Head Gasket at 115 hrs


lawns Etc
05-22-2008, 03:49 PM
Is this common with the 29 DFI engine

Mike Blevins
05-22-2008, 05:02 PM
I hope not. I haven't heard anything negative about the 29 dfi just alot of positives thats why I bought mine. I was told that its Scag's best selling engine? I don't know if that is true or not.

puppypaws
05-22-2008, 05:30 PM
I hope not. I haven't heard anything negative about the 29 dfi just alot of positives thats why I bought mine. I was told that its Scag's best selling engine? I don't know if that is true or not.

That is true according to their manufacturing facility.

ProStreetCamaro
05-22-2008, 05:49 PM
There was a topic on here just a few days ago with a guy that had 3 JD 700 series mowers that all had head gasket problems. He said something about a bad design on the JD mowers that caused bad air flow to the engine and was causing one side of the motor to heat up and blow the head gasket. I dont think its because of the 29hp dfi. It may be an air flow issues.

ProStreetCamaro
05-22-2008, 05:52 PM
Here is the thread it was discussed in. It was actually 8 JD mowers and he said they had a head gasket blow almost every week.


http://www.lawnsite.com/showthread.php?t=229996&highlight=head+gasket

lawns Etc
05-22-2008, 06:12 PM
I do remember that thread, they gave me a 737 till mine is fixed I am impressed they bumped the rpms and it cuts almost as fast as the 797 I am serious