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Offline CaptainTrips

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Noisy engine - head replacement - 2012-2014
« on: January 03, 2019, 06:21:07 PM »
This is a brief summary of the results of 3000++ postings originally posted here that led to the cylinder head replacement program on some first generation Triumph Tiger Explorers:

https://www.tiger-explorer.com/index.php/topic,3966.0.html

Symptoms
Increasing noise coming from the valve mechanism/cam area of the cylinder head in first generation Tiger Explorer models. At around 25,000+- miles, this could result in either loss of compression when the valve(s) no longer seat/seal correctly or sudden catastrophic engine failures when the head of a valve pops off and jams a piston, requiring a full engine rebuild.

Cause
Some early Gen1 TEXs were built with valve guides that were not made to factory hardness specifications. These soft valve guides wear quickly, resulting in valves leaning at an angle. As the wear progresses, the valve stem is put under increasing stress because it is only touching the seat on one side. Ultimately, the valve gets burned up causing loss of compression and/or a valve stem breaks, causing the valve head to pop off and jam the engine resulting in engine failure.

Models Affected
Gen1 TEX model years affected: 2012, 2013 and early 2014 (also some Trophy models - not documented here). TEX VIN numbers up to 602960 are possibly affected.

Remedy Under Warranty
Triumph never issued a recall notice for this problem. Triumph did issue a series of Service Bulletins which could trigger a no-cost cylinder head replacement while the bike was still under regular warranty coverage. Dealers were required to report symptoms of noisy valve trains to Triumph corporate, who would then authorize a no-cost cylinder head replacement.

Service Bulletin
Service Bulletin number 474 issue number 144 dated April 2013

Remedy Out Of Warranty
Triumph corporate has, on occasion, provide parts for head replacement or engine rebuild out of warranty at no cost, IF there is a history of service at an authorized Triumph dealership, and IF your Triumph dealership can be convinced to pursue the issue with Triumph corporate. This 'goodwill' warranty has also been extended to second owners of first-generation TEXs. There are a number of successful cases that are documented on this forum. The caveat is that most dealerships will claim that they have never heard of this issue. It may take some insistence by the owner to get this consideration from Triumph. Also, the labor costs for a full engine rebuild can be approximately US$2600+-

Many of these bikes are still on the road and are being traded in on newer models or sold privately. Some are just reaching the 25k miles mark and have not had the cylinder head replacement.


« Last Edit: January 03, 2019, 06:46:11 PM by CaptainTrips »
"The test of the machine is the satisfaction it gives you. There isn't any other test."   --   Robert M. Pirsig

Offline Triumvirate

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Re: Noisy engine - head replacement - 2012-2014
« Reply #1 on: January 03, 2019, 06:49:54 PM »
Thank you for that posting, I think it will help a lot of people. Looks like you put in quite a bit of time on that to get the details right.  I had my dealership in Spokane repair my 2013 with no problem at all.  They made a lifetime Triumph customer out of me.  For others having problems with their dealerships I would suggest sugar first, rather than vinegar.

Offline tigercraig

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Re: Noisy engine - head replacement - 2012-2014
« Reply #2 on: January 03, 2019, 07:26:17 PM »
This is a great synopsis.   I have had no luck getting a dealer to get this done for me.   Cincinnati dealer is going to have the Truimph Rep listen to my bike next time they are at his delership.   Manager sounds like he wants to go to bat for me.   In the mean time, my 2013 runs great at 22,000 miles.   However, the synopsis speaks of 25,000 mile as the possible trouble zone.  This situation has not dampened my Triumph experience.   Love the bike, and what happens, happens. 
tigercraig
Gone-84' V45 Honda Sabre, 97' R11RT, 06' ST1300,
Current-13' Tiger Explorer

Offline CaptainTrips

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Re: Noisy engine - head replacement - 2012-2014
« Reply #3 on: January 03, 2019, 08:04:30 PM »
*Originally Posted by tigercraig [+]
This is a great synopsis.   I have had no luck getting a dealer to get this done for me.   Cincinnati dealer is going to have the Truimph Rep listen to my bike next time they are at his delership.   Manager sounds like he wants to go to bat for me.   In the mean time, my 2013 runs great at 22,000 miles.   However, the synopsis speaks of 25,000 mile as the possible trouble zone.  This situation has not dampened my Triumph experience.   Love the bike, and what happens, happens.
I should emphasize that the mileage quoted (25k miles) is my own observation of what is typical, based on what I can remember of various posts over the years. I can tell you that my own 2013 TEX had the head replacement done at 500 miles, before I bought it (it was a dealer demo unit). YMMV.
"The test of the machine is the satisfaction it gives you. There isn't any other test."   --   Robert M. Pirsig

 


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