[TR] Update on TR3A from 2 weeks ago

[Alex]

Hi Bob,

Yes, going to take your advice. Put the head back on without the valve train 
and will do a leak down test. Unfortunately, will have to wait until next 
week for the gauge unless I can get one from one of the local parts stores.

Alex



----- Original Message ----- 
From: "Bob Labuz" <yellowtr at adelphia.net>
To: <triumphs at autox.team.net>
Sent: Sunday, December 11, 2011 12:11 PM
Subject: Re: [TR] Update on TR3A from 2 weeks ago


> Alex,
>
> No idea on the pistons but maybe a leak down test is the best way to 
> determine why #3 is still low compression. I think Randall may have hit it 
> with a broken ring unless you have a crack in the head.
>
> Bob
>
> On 12/11/2011 12:02 PM, Alex wrote:
>> Hi Randall,
>> First off.....I gave bad info on the proud........3 were .006" and 1 was 
>> .0055.
>>
>> Reassembled and checked compression. No change.........
>>
>> Pulled exhaust valve in the cylinder in question and the one next to it 
>> and both looked the same.
>>
>> Rechecked flatness of head and deck with a straight edge and feeler 
>> gauges and could not  get a .001" feeler under the straight edge.
>>
>> Looking like rings at this point.
>>
>> Did determine that the engine has 86mm pistons.... with the following 
>> info on the top of the pistons.....
>>
>> BOTT-OC45     RA5228    STD.
>>
>> Any info on these pistons as far as 3 or 4 ring pistons?
>>
>> Alex