I sent John Simms and excellent article on the 2.6, 100-6 engine
modifications and you can find out a lot of what to do and not to do to your
engine for your rebuild. Go to his site and the new section is "Competition".
A follow up article was done several months later when the engine was put on
the dyno.
Enjoy!
Patrick
From: Austin Healey <pajtamuvek at gmail.com>
Subject: Re: [Healeys] Engine rebuild
To: "Eric (Rick) Wilkins" <e-wilkins at cox.net>, Healey List
<healeys at autox.team.net>
Message-ID:
<AANLkTik4rjTzudNu6C3FjNaAn7HKuSWG79A243EqL80i at mail.gmail.com>
I have just measured, 0.015mm is the max wear on the shaft. I have also
noticed, that the rocker shat boshes are not brass/copper, but rather some
kind of silver coloured metal (?). They fit the shaft quite well.
Gergo
2011/2/21 Austin Healey <pajtamuvek at gmail.com>
> Hi Gurus,
>
> May I ask how much wear is acceptable on the rocker shaft? I cant find any
> factoy data.
> I have two shafts, one is shot, but one may be reuseable...
> Gergo
>
> 2011/2/20 Austin Healey <pajtamuvek at gmail.com>
>
> Hi Wilko,
>>
>> Thanks for Your idea.
>> I dont intend to gring the port overly, just to "streamline" it by
>> removing edges, roughnesses etc. I plan a special valveseat-cut, that I
have
>> used on Minis with success, accompanied with some valve shape
modificaions.
>> Does valve deshrouding do any good?
>>
>> Gergo
>>
>> 2011/2/19 Eric (Rick) Wilkins <e-wilkins at cox.net>
>>
>> WIth the 2.6 porting is not going to help, and may actually hurt
>>> performance. The ports are plenty big and are cited as one of the main
>>> reasons that 100 Sixes are more likely to cough and sputter.
>>>
>>> Wilko
>>>
>>>
>>> On Feb 19, 2011, at 10:42 AM, Austin Healey wrote:
>>>
>>> Hi,
>>>>
>>>> Just in case if You have some time...
>>>>
>>>> I am preparing to rebuild my engine (big breath, fingers crossed, St
>>>> Christopher "activated" etc). I did some other engine rebuilds recently,
>>>> soo
>>>> have the basic equipment and common knowledge, but nothing
>>>> Healey-specific.
>>>> Can You give me some instructions on what to take extra care? Are there
>>>> any
>>>> recommended modifications?
>>>>
>>>> My plans are:
>>>> - "fastroad" 2.6 engine, with 12 port head slightly ported/polished.
>>>> - reprofiled cam (approx 260 in and 265ex degrees)
>>>> - 10:1 CR
>>>> - rear oil seal conversion
>>>> - "bucket" oil seals on valve guides
>>>> - slightly lightened/balanced crankshaft and flywheel
>>>>
>>>> Soo far.
>>>>
>>>> Any additions?
>>>> Gergo
>>>>
>>>> PS: I have read some hints in the archieve, but I have got 1000s of
>>>> letters
|