Is it OK to reuse cylinder head bolts?
A head bolt should not be reused if the threads are galled or badly damaged. Chasing damaged head bolt threads with a die will clean up the threads but also remove material (metal) and undermine the head bolt’s ability to torque down and hold to specs.
Can I reuse SBC head bolts?
Re: Head bolts – reuse or always use new? SBC bolts are re-usable unless you can see a defect re-use them and dont worry about it.
What happens if I reuse head bolts?
An old head bolt that doesn’t allow for proper clamping can lead to leaks in your engine. Coolant will be able to leak through the bolt hole and cause more issues for your engine. One of the largest issues with reusing old head bolts that are past their prime is the risk it creates for your gasket.
Is it bad to reuse torque to yield bolts?
Torque-to-yield (TTY) head bolts are designed to stretch when used. Once stretched, they are not as strong as before. Because the tightening procedure permanently stretches the bolts, there is a risk of breakage if reused.
Can you reuse ARP head bolts?
Are ARP bolts and studs re-usable? Yes. As long as the fasteners have been installed and torqued correctly, and show no visible signs of damage, they can be re-used. If they show any signs of thread galling or corrosion, they should be replaced.
What to do if a head gasket fails on a caterpillar C10?
If a head gasket is the source of the problem this revised cylinder head torque procedure can eliminate repeat head gasket failures on Caterpillar C10 and C12 diesel engines. Replace all cylinder head bolts with p/n 129-3184, reduced shank bolts.
What is the new finish for Caterpillar bolts?
Bolts sizes M6 through M12 with the new Zinc Flake finish will be black. Bolts sizes M14 through M36 with the new Zinc Flake finish will be gray. Until stock of the current finish is depleted, you may receive either the current or new bolt color. Caterpillar is changing from Zinc Plating to a Zinc Flake finish for many bolts.
What kind of engine does a caterpillar C10 have?
CATERPILLAR C10 and C12 Diesel Engine Specs. CAT C10, C12 Displacement, bore and stroke Displacement 12.0 liter, 732 CID Bore 5.12 in, 130 mm Stroke 5.91 in, 150 mm Click for CAT C10 and C12 engine manuals and specs.
What kind of bolts are used for cylinder heads?
OEM style cylinder head bolts and performance type ARP brand bolts / studs and fasteners We also have engine hardware including a wide range of items including camshaft thrust plates, dowel pins ,freeze /core plugs, main bolts and stainless steel kits