Red or blue loctite?
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Launching!
Joined: Oct 2007
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Red or blue loctite? Im doing a head/cam/pump/timing chain/pan install and I was wondering if I
1) should use the blue or red loctite
2) use anything on the threads at all
3) anything on stock replacement head bolts?
Let me know, thanks.
1) should use the blue or red loctite
2) use anything on the threads at all
3) anything on stock replacement head bolts?
Let me know, thanks.
I used a little blue locktite on the cam gear bolts, other than that put them in dry if oem or use arp moly lube if your using any arp hardwhere.
Last edited by conan; Sep 27, 2012 at 09:23 AM.
Stock replacement head bolts should have Locktite of some sort on it.. Looks like orange clay or something on the threads.
Re used bolts in the valve train SHOULD be loctited, I like red, but thats just me.... Any medium loctite should do the trick.
Re used bolts in the valve train SHOULD be loctited, I like red, but thats just me.... Any medium loctite should do the trick.
At Caterpillar we only use Red loctite when we really dont ever want to remove the bolts ever again. Dont know if Caterpillar loctite is stronger, but I have had to heat bolt heads up to free/ loosen the loctite to remove.
I say Blue loctite is perfect.
I say Blue loctite is perfect.
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Ok...Old thread...I'm having loctite remorse....
When I swapped my cam out the GM bolts were clean, no locking compound!
Well I ended up putting it back together with blue thread locker because the back said for 6 to 12mm fastensers and the Red said for larger...
Now I'm concerned if I made a mistake....
When I swapped my cam out the GM bolts were clean, no locking compound!
Well I ended up putting it back together with blue thread locker because the back said for 6 to 12mm fastensers and the Red said for larger...
Now I'm concerned if I made a mistake....
Ok...Old thread...I'm having loctite remorse....
When I swapped my cam out the GM bolts were clean, no locking compound!
Well I ended up putting it back together with blue thread locker because the back said for 6 to 12mm fastensers and the Red said for larger...
Now I'm concerned if I made a mistake....
When I swapped my cam out the GM bolts were clean, no locking compound!
Well I ended up putting it back together with blue thread locker because the back said for 6 to 12mm fastensers and the Red said for larger...
Now I'm concerned if I made a mistake....
And you would likely be getting a cam sensor code if your cam bolts were backing out.
Now, I always use a drop of red loctite on each cam bolt. But blue loctite is still quite strong. You did torque them to 26 lbs ft, right?
Russ Kemp
Your loctite came off because you didn't clean the oil out of the holes and off the bolts, so it came right off as soon as you put the bolts back in.
I usually do blue on retainer and cam sprocket bolts. But I have used red before if that was all I had. The key is cleaning the bolts off. I use a soft wire wheel and break cleaner.
I usually do blue on retainer and cam sprocket bolts. But I have used red before if that was all I had. The key is cleaning the bolts off. I use a soft wire wheel and break cleaner.
Joined: Aug 2007
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From: Turnin' Wrenches Infractions: 005
No need for red loctite on anything. My rule of thumb is blue loctite on anything going into steel, and anti-sieze for anything going into aluminum. I don't loctite stuff going into aluminum bc it can gall the threads up and I'm not a machine shop with an assortment of blind hole taps. Hasn't failed me yet.