found out today that the top bolt on my dynamic tensioner bracket is broken. I got the top half of it right now. Its the one with the flat top with the allen head. Unfortunately the other half is still in :doah: How critical is this bolt? The truck still runs without it and doesn't seem too bad. I haven't driven it yet, it's still sitting in xtrapsi's driveway.
radtcma
The top bolt keeps the mounting plate from rotating. If it is not locked in position the spring in the tensioner has nothing to push against.
You can always get another bolt. TRD can source that for you are at least give you the technical description so you can find a replacement.
The most important thing is, is the broken off part down in the threaded hole? Can you get it out?
Gadget
You can always get another bolt. TRD can source that for you are at least give you the technical description so you can find a replacement.
The most important thing is, is the broken off part down in the threaded hole? Can you get it out?
Gadget
http://www.sears.com/sr/javasr/prod...e&pid=00952155000&vertical=TOOL&subcat=Bolt-Out,+Taps+&+Dies&BV_UseBVCookie=Yes
they sell easy outs at lowes also (cheaper too)
nice tools for any one who works on cars.
they sell easy outs at lowes also (cheaper too)
nice tools for any one who works on cars.
Drill a hole down the center of the remains as big as possible without touching the threads. It is important you start the hole as close to the center as possible so you can drill the hole as big as posssible. It helps to start with a small bit and work your way up in sizes. Then use a big easy out on it. If you drill too small a hole and use a small easy out there is a chance of breaking the easy out off in the hole and then its even harder to clear the hole.
Another option is to drill it out threads and all and retap to larger threads, but then you run the risk of not enough material around the hole or other problems.
Another option is to drill it out threads and all and retap to larger threads, but then you run the risk of not enough material around the hole or other problems.
Yeah it sounds like a problem alright. You might have to remove the radiator or more and use a right angle drill.
so I find out today that BOTH bolts that hold the bracket are broken :doah:
I've been to Lowe's, Home Depot, Fastenal and JJ Fasteners (local supply shops) and nobody has them or can find them to order them. The sockethead (bottom) was easy to find but nobody could find the top one which was an allen head cap screw. So I had to go to the dealership. They called TRD and TRD said that they only came in a kit, not just the bolts. So $137 later I had my kit ordered Now its time to somehow dig the other halves out
I've been to Lowe's, Home Depot, Fastenal and JJ Fasteners (local supply shops) and nobody has them or can find them to order them. The sockethead (bottom) was easy to find but nobody could find the top one which was an allen head cap screw. So I had to go to the dealership. They called TRD and TRD said that they only came in a kit, not just the bolts. So $137 later I had my kit ordered Now its time to somehow dig the other halves out
that's what I had to do when I bought a cheap S/C but the allen head bolt was broke and I had to order the whole idler assembly. If you know someone that can search McMaster Carr's website I bet you could find it.
How are these bolts breaking?
I know in the TRD instructions it said to put thread locker on the bolts, however when I spoke with TRD about this Bob told me DO NOT USE THREAD LOCKER. He said to use ANTI SEIZE and torque to spec. One of the bolts sits in front of a water jacket in the block so be very careful not to over tighten or drill into that or you have big problems.
Hopefully the anti seize recommendation is the solution.
I know in the TRD instructions it said to put thread locker on the bolts, however when I spoke with TRD about this Bob told me DO NOT USE THREAD LOCKER. He said to use ANTI SEIZE and torque to spec. One of the bolts sits in front of a water jacket in the block so be very careful not to over tighten or drill into that or you have big problems.
Hopefully the anti seize recommendation is the solution.
No clue on how they are breaking. I noticed the noise on the freeway. Which to me implies steady throttle. HOwever, I drive a stick and only was on teh freeway for 3 miles (now I'm wondering if A crisp use of the clutch could do this).
This weekend I'm attempting to extract the bolts. Has anyone drilled a hardened bolt before? Will it be as difficult as drilling a stainless bolt?
This weekend I'm attempting to extract the bolts. Has anyone drilled a hardened bolt before? Will it be as difficult as drilling a stainless bolt?
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