[Healeys] 6 cyl heater tap on the block
Bob Spidell
bspidell at comcast.net
Sun Apr 17 10:23:45 MDT 2022
At the risk of starting another endless oil flame war, I don't think
anti-seize is the best solution for this application. My experience with
it is that any lubricant in it is just there for application; it
drys--or cooks off in high-temperature applications--leaving the solid
ingredient as residue. Inexpensive AS I believe has some sort of ground
ceramic; higher grade has either copper or nickel (nickel is rated
highest, the bottle I have says up to 2,600degF--no oil will survive
that). AS only provides a barrier to keep metal surfaces from sticking
to each other due to corrosion or other chemical reaction. When I pull
spark plugs I've installed with AS the oily part is gone, leaving only a
thin coat of ceramic/metallic residue. For this reason, I don't think AS
is the best lube for splined wheel hubs either. No matter how good the
fit, wheel hubs will have some 'ratcheting' going on, better to have a
good grease on there to prevent wear, which will also prevent the hubs
from 'welding' together.
I recently rebuilt my block heater tap. I got too clever and used valve
lapping compound to 'clean it up.' To my horror, the compound left
minute scratches on the cone valve (it's equivalent to 200 grit
sandpaper). I got them partially out with fine wet/dry sandpaper but
they were still visible. I put the valve back together with white
lithium grease and, so far, it's been fine, but in hindsight I think
wheel bearing grease would be better. It's the most tenacious grease and
at least somewhat waterproof. I've convinced myself the fine scratching
is like the hone on engine cylinders: it will help retain the grease
where it will do some good.
bs
On 4/17/2022 8:51 AM, i erbs via Healeys wrote:
> I lfolk mine apart a couple of yesrs ago , cleaned, antiseize and its
> stuck open.
> I need to take it apart again
>
> Ira Erbs
> 1959 AH 100-6
> 1967 MGB
> Milwaukie, ORart
>
> On Sun, Apr 17, 2022, 7:03 AM BJ8Healeys via Healeys
> <healeys at autox.team.net> wrote:
>
> The ON position is at the full counterclockwise rotation of the
> handle.
>
> The last time I had the valve off I took it apart, cleaned it, and
> applied anti-seize compound to the tapered shaft. Still works very
> smoothly.
>
> Steve Byers
>
> HBJ8L/36666
>
> BJ8 Registry
>
> AHCA Delegate at Large
>
> Havelock, NC USA
>
> *From:*Healeys [mailto:healeys-bounces at autox.team.net] *On Behalf
> Of *Richard Kahn
> *Sent:* Saturday, April 16, 2022 1:02 PM
> *To:* Bob Spidell; healeys at autox.team.net
> *Subject:* Re: [Healeys] 6 cyl heater tap on the block
>
> Your photo made me check. It actuall does say off and on the
> valve. Still the lever seems ot be half way between off and on. I
> have learned not to fix anything that is working. So, 7:30 it is
> until it starts leaking someday.
>
> ------------------------------------------------------------------------
>
> *From:*Healeys <healeys-bounces at autox.team.net> on behalf of
> Richard Kahn <tahoehealey at hotmail.com>
> *Sent:* Saturday, April 16, 2022 9:56 AM
> *To:* Bob Spidell <bspidell at comcast.net>; healeys at autox.team.net
> <healeys at autox.team.net>
> *Subject:* Re: [Healeys] 6 cyl heater tap on the block
>
> Did I miss the answer to the question? Is it closed in the
> counterclockwise position? My BJ8 is open (getting heat) with the
> lever at the 7:30 position viewed from the front. It has always
> been that way. In US plumbing the heat would be off with the lever
> perpendicular to the hose and valve.
>
> ------------------------------------------------------------------------
>
> *From:*Healeys <healeys-bounces at autox.team.net> on behalf of Bob
> Spidell <bspidell at comcast.net>
> *Sent:* Saturday, April 16, 2022 9:43 AM
> *To:* healeys at autox.team.net <healeys at autox.team.net>
> *Subject:* Re: [Healeys] 6 cyl heater tap on the block
>
> Oh, I should have added: Be careful trying to turn, esp. if it hasn't
> been 'exercised' in a while. The handle is fragile (maybe soak in a
> penetrant first). Also, the valve is spring-loaded, if you can
> push it
> in and out a few times may help loosen it.
>
> On 4/16/2022 12:57 AM, Alan Seigrist via Healeys wrote:
> > Quick Q -
> >
> > If looking at the tap from the top, is it closed with the lever
> in the
> > full counterclockwise position, or the full clockwise positiom?
> >
> > Happy Easter &
> > Happy Passover!
> >
> > Cheers,
> >
> > Alan
> >
>
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