Just
|
| posted on 27/7/06 at 09:51 AM |
|
|
Threadlock - type and from whom?
Need to get some threadlock before taking out my prop-shaft. Are there different types (strengths) that I should be aware of and where is best to get
some from (for the weekend pref)?
|
|
|
|
|
shortie
|
| posted on 27/7/06 at 09:57 AM |
|
|
For the prop use Loctite 270
Rich.
|
|
|
Just
|
| posted on 31/7/06 at 07:36 PM |
|
|
Thanks Rich, got a 50ml bottle of ebay cheap - should keep me going through the winter!
Should you threadlock all types of nut/bolt such as nylocs in important locations such as the diff, wheels, suspension etc? I assume a couple of
spanners are more than a match for even loctited nuts?
|
|
|
C10CoryM
|
| posted on 1/8/06 at 12:52 AM |
|
|
Red loctite is high strength "permanent" applications. Mostly meant for locking studs in and press fits.
Blue loctite is medium strength and is better suited to bolts that need to come out every now and then (like driveshaft bolts). I like to use blue
loctite on any rotating fastener, and any suspension/steering fastener.
Having said that, one small drop of red loctite is probably the same effect as a large drop of blue stuff. I know Ive pulled out bolts with red
loctite with no problem. The green/yellow stuff can be pretty hard though. Do not use that on small fasteners  .
BTW nylocs are supposed to lock themselves on so long as you have only used them once, and didn't ram them down with an impact gun.
Cheers.
"Our watchword evermore shall be: The Maple Leaf Forever!"
|
|
|
Just
|
| posted on 1/8/06 at 09:31 AM |
|
|
The 270 came in a red bottle - should I be using something else then? Also the nylocs are the ones that came off, so should I get some new ones?
|
|
|
DIY Si
|
| posted on 1/8/06 at 09:33 AM |
|
|
quote:
Also the nylocs are the ones that came off, so should I get some new ones?
Basically, yup! They may hold themselves on a second time, but would you really want to try it and see?
|
|
|
Just
|
| posted on 1/8/06 at 12:09 PM |
|
|
So, new nylocs and some 270 then or is 270 going to stop me getting them off again in the future?
Also, where is reliable for good nylocs?
|
|
|
Just
|
| posted on 3/8/06 at 04:28 PM |
|
|
Anyone else - blue or red loctite?
|
|
|
greggors84
|
| posted on 4/8/06 at 12:31 AM |
|
|
I would go for blue loctite as has been said.
As for nylocks, as long as they are metric, screwfix will sell them to you cheap, or try the yellow pages for a local nut and bolt supplier, I have
got very friendly with mine over the build and he will quite often let me have stuff for free if its in small quantities.
Chris
The Magnificent 7!
|
|
|
C10CoryM
|
| posted on 4/8/06 at 04:18 AM |
|
|
Neither red nor blue is going to make it so that you cannot loosen the bolts off. Unless you absolutely coat the threads of a cheap small machine
screw and tighten the full thread length.
Use a drop of red, or use a couple drops of blue when dealing with suspension bolts. Ive used red on small bolts (4mm) before with no problems. I
prefer to use tools how they are designed to be used, but Im sure that is fine. Fine thread bolts usually take a while to loosen off anyhow and on a
hobby car you will probably have taken it apart again by then  .
Cheers.
"Our watchword evermore shall be: The Maple Leaf Forever!"
|
|
|
indykid
|
| posted on 5/8/06 at 04:16 PM |
|
|
red or blue loctite refers to the colour of the actual fluid itself. it's all in red bottles.
i originally put my prop in with blue(243), but don't know if i torqued up the bolts. they came loose, so i put them back in with red(271). when
i stripped it down, i had a job on getting them out, but they did come out. i used those 2 specific grades as that's what we sell at work.
tom
|
|
|
JB
|
| posted on 14/8/06 at 07:32 PM |
|
|
Nuts Bolts Threadlocker
Nuts , Bolts , Fastners , and Plumbing Handbook " , by Carroll Smith will tell you EVERYTHING you need to know.
Basically a correctly specified, and installed fastner will not loosen. Think of some of the most critical bolts in the engine. They are just torqued
and they are fine.
However we cant always be sure we have specified, installed etc correctly, so we use Nylocs and Loctite.
Nylocs can be generally reused a few times.
Loctite comes in many grades and its not just varying strength. There are different viscosities, resistances to chemicals and strengths.
I generally use 3 types of Loctite.
638...... which is a high strength retainer, used for retaining bearings in housings or shafts in holes, ring gear on flywheels etc. This is serious
stuff and will generally only break with heat. I also use it on threads if I do not want it to come apart.
243......(I think) its blue and medium grade. This is for all my general locking.
And another very weak grade for small fastners that I want to get apart very easily.
The Loctite website has (or did) a wealth of technical info. There telephone help line is also superb.
They also do a design manual that is worth getting hold of.....if you can!
John
|
|
|
NS Dev
|
| posted on 15/8/06 at 12:38 PM |
|
|
quote:
Originally posted by Just
The 270 came in a red bottle - should I be using something else then? Also the nylocs are the ones that came off, so should I get some new ones?
all loctite comes in red bottles! Its the colour of the loctite inside that you need to look at.
PS I don't use blue or red!!
Red is very tough stuff and can be a pain in the a***.
Blue is hardly worth using, apart from dash bolts etc (i.e. unstressed but prone to rattles)
I use Green loctite (275 i think) for everything, its in between red and blue and is perfect.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
|
|
|
dnmalc
|
| posted on 17/8/06 at 09:41 PM |
|
|
we use loctite 242 for bolts and 244 for studs these are both blue and are designed to be withdrawn when required.
|
|
|
edspurrier
|
| posted on 26/11/07 at 06:04 PM |
|
|
Which should I use for fitting brake calipers and discs? Thanks (Hispec 4 pot)
|
|
|
