caliper bolts

[Longman]

Hi all,

I'm in the process of refurbishing a set of SS calipers to put on my exec. My Haines manual states that the caliper bolts on the car are "self locking" and designed to be used only once and when removed they must be replaced.

Does anyone know the reason for this? Are replacements freely available or do they need to be sourced from Holden?

Normally, I wouldn't have even thought about replacing bolts.

Thanks!!

 

[TheForgotten]

reason they're single use? I'd say just to cover their bums regarding backyard mechanics using dodgy parts. after all, brakes are IMO the most important safety feature of ANY car. finding replacements should be simple, just take an old bolt to a bolt shop and get one same thread. holden should keep some in stock too. might be more expensive, but certainly easier

 

[accentstencil]

I always re-use the bolts, just put some loctite or similar on the thread.

 

[chargedvx6]

It is a stretching bolt. These are to be used once because once they are tensioned and then that tension is released their structure is changed. These are brakes fellas! These 2 bolts are soley responsible for holding the caliper to the hub ffs. Use loctite?

They will set you back about $4each from Holden and come with the loctite applied. They are a readily available item.

 

[accentstencil]

It is a stretching bolt. These are to be used once because once they are tensioned and then that tension is released their structure is changed. These are brakes fellas! These 2 bolts are soley responsible for holding the caliper to the hub ffs. Use loctite?

They will set you back about $4each from Holden and come with the loctite applied. They are a readily available item.

I've been doing it this way since before replacing the bolts was heard of, about 35 years and not once has there even been a hint of a problem. It has nothing to do with the cost of the bolts.

 

[Longman]

cheers for the info. I'll replace them as this will be the first time I've had the calipers off. Oddly enough though, I had the front rotors changed about 2 years ago at a brake place in the ACT and they didn't put new bolts on.

 

[chargedvx6]

The way I look at it is.....you r saving at least $200 by DIY so another $16 for 4 new caliper bolts is justified.

Workshops are big on reusing bolts where they can but a stretching bolt only really stretches once :yeah: The next time it stretches is called breaking :w00t:

 

[BOGANV8]

So the same could be said for wheel studs and wheel nuts....... how many people replace them everytime..


I think not as said above i have been using the same bolts on brakes for the last 12 yrs working on cars and never a problem......


Its all talk and bs

 

[chargedvx6]

So the same could be said for wheel studs and wheel nuts....... how many people replace them everytime..


I think not as said above i have been using the same bolts on brakes for the last 12 yrs working on cars and never a problem......


Its all talk and bs

Especially your post

 

[kingwalker]

ive always reused the bolts in thirthy years off playing with cars and bikes not a problem, as long as you torque them up.:dance:but one thing i do is put new head bolts in every head i do