[Healeys] Vernier timing gears

[Henry Morrison]

You can set your cam timing to an exact point. Within a degree or two.  with the stock stuff it's more like five degrees.  It makes a difference..........................Henry Morrison

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________________________________
From: Healeys <healeys-bounces at autox.team.net> on behalf of David Porter <frogeye at porterscustom.com>
Sent: Friday, July 7, 2017 8:39 AM
To: healeys at autox.team.net
Subject: Re: [Healeys] Vernier timing gears

...assuming that the gears and chain and tensioner are up to snuff,
exactly what is the big benefit for vernier adjuster when there is a
single cam acting on the valves.. dp


On 7/7/2017 4:05 AM, Chris Dimmock wrote:
> Hi Wayne,
> >From a quick internet search on the head markings of your "aviation bolts" they are at best approx grade 5 (120 KSI) equivalent, cad plated steel bolts. Nothing special.
> The Rollmaster bolts you have shown look to me like grade 8 (150 KSI) unbrako style cap head bolts.
> The Rollmaster Vernier timing kit tells you at least 3 times (on the packaging, and in the instructions) to Locktite these bolts.
> If I was going to change these bolts, I'd go up to 180 KSI ARP bolts, not down to grade 5 120 KSI bolts.
> Our Healey Club (AHOC NSW) sells the  Rollmaster Vernier kits and we have had no issues reported.
> Bob Spidell has recently had this timing set installed in his newly rebuilt engine.
> Best
> Chris
>
>
>
> Sent from my iPhone
>> On 6 Jul. 2017, at 1:43 am, Wayne <waschu2 at gmail.com> wrote:
>>
>> Hello,
>>
>>           I am getting back to my Healey 3000 engine rebuild after two years.  I bought the Roller master vernier timing gear set from Moss at that time.  I have previously used the Roller Master gear set with multiple key ways to adjust the cam timing with no problems on other rebuilds. What I don't like about this set is that the cap screws used to clamp the vernier gear to the hub are not very robust. Working in aviation I have AN-4 bolts that I can replace the cap screws with and safety wire them to prevent slippage.  Has anyone using this kit had problems?  I could keep the cap screws and Loctite them. This is a street car, not a race car. Pictures are one bolt installed and the hardware side by side.
>>
>> Wayne
>>
>>
>> <IMG_2537.jpg>
>> <IMG_2540.jpg>
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--
Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM
87107 505-352-1378 Go HERE: my world www.porterbikes.com/<http://www.porterbikes.com/>
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