Oil pump o-ring

[diamondback0320]

Anyone have a part# for the o-ring on backside of the oil pump on a 0320 h2ad & where I might could order 1 thanks

[krazymatt]

http://www.southernairboat.com/pdf/airc ... /lycoming/

look up your motor. the size is usually listed or called out for the orings. once you know the size you can order it anywhere. McMaster, miller bearing, central hydraulic...

[diamondback0320]

Tried ordering from couple places...30 business days to ship lol..I believe I've tried to find it here in town once before but can't remember..

[Deano]

Lycoming part # LW15070 3 1/2 x 7/64

You might try and call Tom Schmidt, looks like he's had them in the past.
Schmidt Aviation Inc.
Ft Lauderdale, Fl 33309
954-772-0772

If not, these guys claim 2-3 days . . .
http://www.aircraft-specialties.com/o-r ... -lw-15070/

[diamondback0320]

Ok I'll try Schmidt..thanks..

[diamondback0320]

Well hate to say Lycoming specs r wrong..pulled oil pump off & measured o-ring id & it's not 3.50 it's 3.75..so thought maybe o-ring was outta whack & measured pump where o-ring goes & it's 3.75 Id,i found a 3.50..that wouldn't even come close to working

[diamondback0320]

Just talked to Schmidt & sure enough he measured 1 & it's 3.73 id & not 3.50 as the manual & websites are advertising

[diamondback0320]

Thanks for the replies and help

[Deano]

Wow, had no way of anticipating that.
Sure glad you didn't order one and then find that out 34 days later.

So, was Tom able to hook you up or are you still needing one?

[diamondback0320]

Yeah gonna order 1 probably monday

[Deano]

For what it's worth, what you need looks to be dash240 which is Grainger's item number 41UM76.

They don't have them in Ocala, but claim a fat week to get them. The 5 pack is < Lycoming's single price.
There used to be one in W Melbourne, although I don't know that it's still there. Maybe they have them?

https://www.grainger.com/product/GRAING ... ing-41UM76

[diamondback0320]

Hmm..I called Granger yesterday morning & spoke to a lady in sales department & she couldn't find anything that size

[diamondback0320]

That part # spec says 1/8th diameter not sure if that would b too thick or not compared to 7/64..b worth looking into tho

[Deano]

I wouldn't think 15 thousandths would be a deal breaker in 4 inches.
But then I don't have mine apart to look at it either.

[diamondback0320]

Yeah I was thinking same thing Deano thanks

[Planeguy]

If you are thinking the size can be fudged a little, you might try part number MS28775-240 (1/8 x 3.75 x 4). I haven't checked but I would think an auto parts or hydraulic shop would be able to match that up otherwise it's ~$1.25 plus shipping from aircraft vendors and should be readily available.

[mirage]

Hmm..I called Granger yesterday morning & spoke to a lady in sales department & she couldn't find anything that size

You are wasting your time talking to the people who work the counter at Grainger. Get the book or look up on line.