Gasket Adhesives
#1
Posted 28 March 2018 - 04:26 PM
Would a smear of blue hylomar both sides suffice? Can I also use this on the rubber gearbox to block seal?
#2
Posted 28 March 2018 - 06:02 PM
To make these engines & gearboxes leak free (and yes, there is such a thing and can do for long periods) it's seldom down to gaskets and sealants, though they can play a role.
95% of the time, it comes down to component fit and it's not often that the gaskets themselves will be a cause of a leak. Along with component fit, the engine breathers need to be appropriate and plumbed correctly.
Hylomar is good, but I have only ever used it on solid copper head gaskets. For most other gaskets, I use Loctite (or Permatex) No. 3. If it's a gasketless diff cap I'll use Peramtex Silicon that's compatable with oil. I also use this on the heater take off, thermostat cover and water pump. The No. 3 was OK on these, but I've had better success with the Permatex. I also put a small blob of the Silicon Sealant on the O Ring that's under the diff side cover for the detent. The Oil Pressure Switch, Freeze Plugs and the Nipple in the Oil Filter Head I use Loctite 242.
There's a bit more info on the Gasketless Diff Caps here http://www.theminifo...kets-important/
I don't feel that Hylomar is the wises choice for the diff cap.
#3
Posted 28 March 2018 - 06:03 PM
Ive used it on all the gaskets Ive replaced so far and its nice and tacky and so far Ive had no issues!
The method I was told by a mechanic of 50 years was to put some of the hylomar on your fingers then rub the gasket both sides in it all over so it has a thin but full coverage.
Im no expert but it seems to work!
#4
Posted 28 March 2018 - 06:17 PM
#5
Posted 28 March 2018 - 07:48 PM
#6
Posted 28 March 2018 - 08:58 PM
I use a mix of thoughs on my engines
#7
Posted 30 March 2018 - 09:38 PM
It is also used by modern car manufacturers for new engines that don’t even have gaskets at all.
It may be a bit more expensive than other brands but it does actually work, it is available in a squeeze tube or a power can.
#8
Posted 31 March 2018 - 03:00 AM
I'm with Moke Spider, It's fit and finish that counts more than the gasket. I use well-seal because it's what we used at Rolls-Royce and besides I love the smell.................................
#9
Posted 31 March 2018 - 09:38 AM
Strangely enough I believe that Hylomar Blue was developed for Rolls Royce engines a long long time ago and was only available to buy from Roll Royce Dealers. The most popular alternative back then was Hermatite Red or Green.I'm with Moke Spider, It's fit and finish that counts more than the gasket. I use well-seal because it's what we used at Rolls-Royce and besides I love the smell.................................
#10
Posted 31 March 2018 - 10:08 AM
Strangely enough I believe that Hylomar Blue was developed for Rolls Royce engines a long long time ago and was only available to buy from Roll Royce Dealers. The most popular alternative back then was Hermatite Red or Green.I'm with Moke Spider, It's fit and finish that counts more than the gasket. I use well-seal because it's what we used at Rolls-Royce and besides I love the smell.................................
You are correct. Wellseal was also developed for Rolls Royce. I use Wellseal at work (Rolls Royce and Bentley Restoration) and the Hylomar normally gets left in the cupboard! Personal preference at the end of the day
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