I used wooden clothes pins as heat sinks back in the day on my 65 Oldsmobile
Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone
On Fri, Aug 10, 2018, 1:37 AM Alan Seigrist <healey.nut at gmail.com> wrote:
> Alan -
>
> I have both cars. That's basically the only difference. The A90 also
> uses a mechanical pump which is on the left front of the block, generally
> works pretty well except it is susceptible to vapor lock being below the
> manifolds, so the truck from old A90 guys is to wire a piece of wood to the
> fuel line that acts as a heat sink and then no more vapor lock!
>
> Cheers,
>
> Alan
>
> On Fri, Aug 10, 2018 at 1:00 AM Bluehealey <bluehealey at gmail.com> wrote:
>
>> Team.
>>
>> I have both an AH100 and an A90 engine sat side by side on my garage
>> floor. It is known that the AH100 was developed to take advantage of the
>> A90 Atlantic mechanicals and therefore I assumed that the A90 and AH100
>> engines were essentially the same.
>>
>> When externally comparing these two engines there is a minor difference
>> between them that surprises me. The AH100 distributor mounting base on the
>> block has bolt holes tapped into bosses each side of the distributor hole.
>> The A90 has a single boss and a single tapped hole.
>>
>> This indicates to me that the AH100 engine had its own block casting at
>> the very least, and perhaps other variations too.
>>
>> Could someone advise if there any other significant differences between
>> the AH100 and A90 engines?
>>
>> Many thanks.
>>
>> AlanB
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