Camshaft Tower Bolts
#1
Camshaft Tower Bolts
Hey all,
After some discussions, it's not clear if the camshaft tower (cap) bolts are torque to yield. Just to be clear, these are the cam journal bolts that hold the cam down.
I called the dealer and it was unknown if they can get them. Also, nobody sells them.
So. Who can verify:
1) Are the bolts TTY?
2) Can they be purchased? If so, where?
I found these bolts. Thoughts?
I plan on taking them out tonight to get some measurements. If all else fails I was going to go to McMaster-Carr or Fastenal.
https://www.summitracing.com/parts/t...250-super-duty
After some discussions, it's not clear if the camshaft tower (cap) bolts are torque to yield. Just to be clear, these are the cam journal bolts that hold the cam down.
I called the dealer and it was unknown if they can get them. Also, nobody sells them.
So. Who can verify:
1) Are the bolts TTY?
2) Can they be purchased? If so, where?
I found these bolts. Thoughts?
I plan on taking them out tonight to get some measurements. If all else fails I was going to go to McMaster-Carr or Fastenal.
https://www.summitracing.com/parts/t...250-super-duty
#2
I can't believe a dealership cannot or will not sell these bolts. I'd call a few other dealers or check out the FordPartsGiant site---they have just about any Ford OEM part I've ever checked on. Prices are consistent with discounted dealership prices, about 25% off MSRP.
Personally I'd stick with OEM bolts as Fastenal, et al might have not have the proper spec bolts available.
Personally I'd stick with OEM bolts as Fastenal, et al might have not have the proper spec bolts available.
#3
I have checked FordPartsGiant and a few of those other OEM sites. They're not available there either.
Best I can tell and my opinion. The camshaft tower bolts are not tty but the balancer shaft bolts are. The bolt construction of the balancer shaft bolts have a long shoulder similar to a head bolt. The cam tower bolts are threaded the entire length.
I found a bolt in the shop the same size and shape as the balancer shaft bolt and it felt very solid meeting torque. The older bolts did not, as a matter of fact, one of them snapped. This is what had me second guessing that.
The bolts in the link I posted do not have the same size and spec as the cam tower bolts.
Best I can tell and my opinion. The camshaft tower bolts are not tty but the balancer shaft bolts are. The bolt construction of the balancer shaft bolts have a long shoulder similar to a head bolt. The cam tower bolts are threaded the entire length.
I found a bolt in the shop the same size and shape as the balancer shaft bolt and it felt very solid meeting torque. The older bolts did not, as a matter of fact, one of them snapped. This is what had me second guessing that.
The bolts in the link I posted do not have the same size and spec as the cam tower bolts.
#4
#5
There are 2 close to me. I called them both. Both said the same. I can give them my VIN and they can contact fomoco and request a part number / see if the bolts are available to order.
Also, going to edit the response in the post above. Those bolts are not the same size.
Also, going to edit the response in the post above. Those bolts are not the same size.
#7
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#8
For post above. Just because you use a torque turn method on a bolt mean it's a 1 time use bolt. I work on truck engines and alot of fasteners have gotten away from a single torque to the torque turn method because its suppose to be more accurate and consistent method of torque.
I'm not sure of a torque to yield bolt has special markings, but a reuse method I have seen for some is measure the shank of bolt and see how much diameter is reduced from stretching.
otherwise see if you have an actual bolt shop close and they can usually match it.
I'm not sure of a torque to yield bolt has special markings, but a reuse method I have seen for some is measure the shank of bolt and see how much diameter is reduced from stretching.
otherwise see if you have an actual bolt shop close and they can usually match it.
#9
That's extremely unusual even for a dealership. Every part Ford supplied with the engine will have a part number, typically readily viewable by the parts department. I don't know the answer to finding the correct OEM number but I've never encountered a parts seller who didn't have an almost immediate access to every teeny tiny bolt or fastener Ford would have used.
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