Question about 2007 kawasaki Ninja ZX6R
Are 01 zx6r head bolts TTY? @
Hi, Brandon TTY fasteners were first used to clamp together bi-metal components such as aluminum and cast iron engines, and aluminum brake knuckles. TTY fasteners are now found on all kinds of vehicles. Unless the "service manual" specifically states not to reuse the fastener it is ok to use them again.
Buying new bolts may seem expensive. After all, the old bolts still look good, but looks can be deceiving. Reusing the old bolts can cause expensive engine failure. Hence only new bolts can provide the even clamping force needed on today's engines.
Why do we need these torque to yield bolts now? We didn't need them in the 1960?s or 70?s! The simple answer is engine materials are different. Aluminum cylinder heads expand at a different rate than cast iron blocks. As an engine warms up, bolted together parts have to move against each other or slide on their gaskets. Therefore the elastic properties of the torque to yield bolts allow movement between parts yet maintain even clamping loads and sealing.
When a shop manual indicates that a bolt is to be discarded and new ones used, they are almost always torqued to yield bolts.
TTY studs can be identified by sight because of the inset hex head at the end of the stud. Always check the service information to get the right amount of torque for a suspension component TTY or otherwise.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Kawasaki Ninja ZX 6R Service Manual
OEM Parts for Kawasaki
2001 Kawasaki Ninja ZX 6R Owner Manual
Posted on Mar 12, 2019
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Posted on Jan 02, 2017
If you mean head bolts you need to ask a dealer, if you mean valve cover bolts you can look up torque spec's by bolt size just google it look for a flow chart of spec's.
Posted on May 06, 2012
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Since you didn't say which engine you have, I've pulled torque specs for 3 different engines. Also, since I can't include a diagram showing the relative locations of the numbered head-bolt locations, it would be a good idea for you to purchase a vehicle specific repair guide that will show this info.
Take particular note about the TTY (Torque to Yield) bolts used on 2 of the 3 engines shown. It is said that new head bolts MUST BE USED when head is replaced or re-installed to obtain the proper torque.
B2500 4 Cylinder
Torque sequence: --------- ' 10 6 2 4 8
' front ' ' ' 7 3 1 5 9 ' -----------Step 1: torque in sequence to 51
Ft/Lbs Step 2: torque again in sequence to 51 Ft/Lbs Step 3: final
tighten all bolts an additional 90 to 100 degrees recheck final
torque in sequence *** CAUTION ***engine uses Torque To Yield head
bolts (TTY) that permanently stretch during the initial installation.
New head bolts must be used when cylinder head is replaced or
re-installed to obtain proper torque.
B3000 3.0 6 Cylinder
Torque sequence ---------- ' 6 4 2 8 '
' ' ' 5 1 3 7 ' ---------- Step 1: torque to 59 Ft/Lbs Step 2: loosen
in sequence (1) full turn Step 3: torque to 41 Ft/Lbs Step 4: torque
to 73 Ft/Lbs
B4000 4.0 6 Cylinder
Torque sequence --------- ' 5 1 3 7 ' '
' ' 6 4 2 8 ' --------- Step 1: torque cylinder head bolts in
sequence to 26 Ft/Lbs Step 2: torque cylinder head bolts to 56 Ft/Lbs
Step 3: turn cylinder head bolts in sequence an additional 90-degrees
recheck final torque in sequence *** CAUTION ***engine uses Torque To
Yield head bolts (TTY) that permanently stretch during the initial
installation. New head bolts must be used when cylinder head is
replaced or re-installed to obtain proper torque.
Good luck with this job!
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