Dove undercarriage bolts.

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10 years 6 months

Posts: 300

Can any one tell me the bolt treads and lengths for the 8 bolts that hold the main undercarriage leg u clamps to the wing.
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Member for

6 years 1 month

Posts: 155

Hi Varsity, If you don't already have the answer by the time I get home I will check the manuals.
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Member for

6 years 1 month

Posts: 155

Hi Varsity, Spare parts manual did not have the size or thread but they are Part number 4U 253 [ATTACH=CONFIG]237897[/ATTACH]
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image.jpg 143.37 KB

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15 years 1 month

Posts: 104

Hmm, might have a quick look on the shelves...
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Member for

6 years 1 month

Posts: 155

I want your shelves! how did you go with the wing bolts scrooge? I might have got on to a half set here in oz

Member for

15 years 1 month

Posts: 104

I want your shelves! how did you go with the wing bolts scrooge? I might have got on to a half set here in oz
Plenty if you want new ones. I've found one large one that I think is u/s but not the smaller ones. We've got a lot of 4U252 in a box marked as 4U253, what's the difference?
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Member for

6 years 1 month

Posts: 155

Will have a look in the spares catalog tonight scrooge. I will keep looking here for wing bolts, with some luck you might be able to chuck some in with a "bigger" parcel later in the year.

Member for

15 years 1 month

Posts: 104

Varsity, turns out there are no 4U 252 bolts listed in the parts book, so the box has been mislabelled. These are not a standard bolt- I'll try to upload a picture in a few hours. Dan, I think I found a second u/s large bolt, will need to ferret a bit more for the smaller ones.

Member for

10 years 6 months

Posts: 300

Thanks for looking we need the bolts at the top of the main leg at the bottom of the diagram if we can find the thread and length it would help.

Member for

15 years 1 month

Posts: 104

Varsity, righto, I think I'm with you now, those are 4U 251. See pictures, it's the one covered in grease. [ATTACH=CONFIG]237939[/ATTACH] [ATTACH=CONFIG]237941[/ATTACH] [ATTACH=CONFIG]237942[/ATTACH] 4U 251- 3" 5/16" total length, threaded section is 7/8", rounded end part with lockwire holes is 5/16" as is the hex. Can't tell you the actual thread right now, but if I remember I can get it checked.
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4U 253 (2 small).jpg 24.4 KB
4U 253 (1 small).jpg 25.73 KB
4U 251 (small).jpg 71.73 KB

Member for

15 years 1 month

Posts: 104

7/16 BSF, 1'' 27/32'' clear, 0.8'' thread