7 replies to this topic

[HUBBA.HUBBA]

Bought these ARP Sandwich thermostat bolts and they are bottoming out. Anyone come across this. Bought from Minispares.
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[nicklouse]

Does depend on the thermostat set up you have as there are various different thicknesses out there.

Don’t like bolts there either. Prefer studs.

[HUBBA.HUBBA]

Totally agree. Didn't realise there were longer studs available for the Sandwich plate

[Homersimpson]

Does depend on the thermostat set up you have as there are various different thicknesses out there.

Don’t like bolts there either. Prefer studs.

Out of interest why do you prefer studs? I always found that the thermostat housing tended to sieze onto studs whereas bolts tended to be easier to come free?

[gav]

ARP initially designed them for the Metro setup I believe so they are Metro length, it doesn't help that the thread depth varies in the heads also :/ Some people cut them down slightly or use an extra washer.

[nicklouse]

Does depend on the thermostat set up you have as there are various different thicknesses out there.

Don’t like bolts there either. Prefer studs.

Out of interest why do you prefer studs? I always found that the thermostat housing tended to sieze onto studs whereas bolts tended to be easier to come free?

Always had issues with bolts. Seize up and then snap. Studs take nuts off apply a release agent (if needed) job done.

Also not a fan of tightening unc threads. (Unless in alloy).

[HUBBA.HUBBA]

ARP initially designed them for the Metro setup I believe so they are Metro length, it doesn't help that the thread depth varies in the heads also :/ Some people cut them down slightly or use an extra washer.

to be honest . I'll probably end up trimming them down a bit. Just need to make sure the bolt is actually bottoming out at the end as opposed to not having enough thread up the bolt.

[Curley]

Those ARP bolts are designed for use with a sandwich plate on the Metro style spout. It's trivial task to cut them down to your required length (much cheaper and faster than buying ARP from catalogue), just use a scrap nut as guide to protect the threads & ensure you get a straight cut.