Lunt PT O rings

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Merlin66
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Lunt PT O rings

Post by Merlin66 »

Trying to help a guy who has received a repair kit from Lunt for his LS60.
He's received O rings and some grease. There are two sizes of O rings...he's got 2 x 32 mm and 2 x 34 mm O rings.
Which one goes where? One of each or a pair of one size???
Can any Lunt user help??
Thanks,


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Re: Lunt PT O rings

Post by george9 »

When I changed mine, Lunt recommended 34mm ring on the inside and 32mm ring on the outside. That way it was easy to thread on (with the smaller 32 going in first), but the second ring, the 34, being a little bigger and likely to hold air more tightly. It has been working out, but I am thinking of switching to both 34s.

(When new, it had held air for months. After five years and many hundreds of uses, it came down to daily burping. With the new rings, I go maybe a week. I mean I could go longer by screwing in further. But one week is about how long it stays at the same tuning.)

George


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