[TR] ZS 175 carbs

[Geo Hahn]

I realize the original question was about a TR6 but since broad statements
may be interpreted as applying to all ZS 175s -  I'll add that the
aforementioned screws on original TR4 carbs that I have seen were slotted
Fillister Head screws.

Geo

On Wed, Oct 3, 2018 at 1:04 AM Jack McGahey <McGaheyRx at aol.com> wrote:

> The screws holding the top cover on the carb are M5 0.8 - I measure 12.4
> mm long - M5 0.8 x 12 would work. Having said that, I would (have and will)
> order the correct ones. A generic replacement will probably have a Phillips
> head and will be harder to get     out, without damaging the screw head,
> than Pozidrive on the correct screws.
> The correct screws are unthreaded at the very top where the lock washer
> sits - they come with the lock washer in place and that lock washer does
> not easily come off.
> The fitted washer and the pozidrive head are big advantages IMHO. I’ll
> always buy the correct ones.
>
> Cheers,
> Jack Mc
>
> Sent from my iPad
>
> On Oct 1, 2018, at 1:25 PM, Creig Houghtaling <creig555 at live.com> wrote:
>
> David,
>
> See if a #10 or #8 machine thread works.  It is one of these, but I don't
> remember which.  I always buy new bolts and lock washers from the hardware
> store for carb top covers.  You can buy stainless.  And it doesn't cost as
> much.
>
> My friend had metric size bolts holding his carb tops on his TR8.  I
> suspect that was because a previous owner put them in because they were
> close in size and he just forced them in because they were into aluminum.
>
> What are you referring to for damper 0-rings?  If you are referring to the
> tiny one at the bottom of the dashpot that holds the dashpot oil around the
> metering needle, then yes that is a standard size o-ring that you can buy.
> The o-ring around the fuel reservoir plug is standard and can be bought too.
>
> Creig
> ------------------------------
> *From:* Triumphs <triumphs-bounces at autox.team.net> on behalf of
> davgil at aol.com <davgil at aol.com>
> *Sent:* Monday, October 1, 2018 8:44 AM
> *To:* triumphs at autox.team.net
> *Subject:* [TR] ZS 175 carbs
>
> I worked on the carbs on my 1976 TR6 this weekend, one of the needle
> adjustments screws moved and I was able to lean the carb I needed for some
> improvement.  A couple of questions, does anyone know the specs on the
> screws holding the top cover to the body of the carb?  Someone (not me -
> honest) buggered them up and I had to cut a slot on one to back it out.  I
> would like to just replace them all.  Moss has them at $1.89 apiece but
> that seems a bit much.  I had a couple of screws in my loose screw bin that
> looked correct but did not seem to fully thread into the carb body and I
> didn't want to force them and ruin the threads.  Also, if the damper
> o-rings are a standard size that I can pick up at a local FLAPS instead of
> ordering them, i would appreciate knowing the specs on those as well.
> Thanks
> David Gill
> 1976 TR6
>
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