The following warnings occurred: | |||||||||||||||
Warning [2] Undefined property: MyLanguage::$archive_pages - Line: 2 - File: printthread.php(287) : eval()'d code PHP 8.1.31 (Linux)
|
Q - screw-in block core plug removal - Printable Version +- Austinsevenfriends (https://www.austinsevenfriends.co.uk/forum) +-- Forum: Austin Seven Friends Forum (https://www.austinsevenfriends.co.uk/forum/forumdisplay.php?fid=1) +--- Forum: Forum chat... (https://www.austinsevenfriends.co.uk/forum/forumdisplay.php?fid=14) +--- Thread: Q - screw-in block core plug removal (/showthread.php?tid=5696) |
RE: Q - screw-in block core plug removal - Austin in the Shed - 20-02-2021 Rear hub Puller thread is 1 3/8" RE: Q - screw-in block core plug removal - jr2766 - 20-02-2021 You will rarely remove the screwed in plugs in a block without drilling them out. I have just removed the plugs from 3 blocks. Drill or mill out the plugs to about 7/8" to 1" diameter then drill a series of holes in the remainder. Collapse the annulus with a hammer and chisel and retap M32 x 1.5 which has worked well. I can confirm the thread is 1 1/4" x 16 tpi however one of the blocks has a 1" thread Its important to get all the rust out of the area of the plug thread and for this I use Citric Acid, 1kg of crystals to 8 litres of water and after a couple of days you are left with a lovely clean grey surface. If you want quicker action just keep the solution warm. This is much nicer to use than molasses and Muriatic acid. I haven't had the new plugs made yet but they'll be in SS and have two dowell holes rather than a screw driver slot and sealing will be by o ring. If there was enough interest I may be able to supply some of these to third parties. Jim Runciman RE: Q - screw-in block core plug removal - Stuart Giles - 21-02-2021 (19-02-2021, 03:14 AM)David Grear Wrote: I remove the plugs by drilling a hole in the centre of the plug using drill bits increasing in size to 3/4 of an inch. (19-02-2021, 07:44 PM)Colin Wilks Wrote:(19-02-2021, 01:25 PM)Stuart Giles Wrote: David, That's interesting information about the thread of the large screw in core plug -@ 1 1/4" x 16 TPI it's the same as the rear axle hub thread. Does your car have the late "heavy" rear axle? These have bigger wheel bearings than earlier cars; ISTR that the hub thread on those is 1 3/8" RE: Q - screw-in block core plug removal - Colin Wilks - 21-02-2021 (21-02-2021, 10:24 AM)Stuart Giles wrote Wrote: Does your car have the late "heavy" rear axle? These have bigger wheel bearings than earlier cars; ISTR that the hub thread on those is 1 3/8" Just measured internal threads on my standard Austin hub puller and the 1 3/8" x 16 tpi die that I have for refreshing the hub threads. Both measure 1.298". RE: Q - screw-in block core plug removal - Stuart Giles - 21-02-2021 (21-02-2021, 06:08 PM)Colin Wilks Wrote:(21-02-2021, 10:24 AM)Stuart Giles wrote Wrote: Does your car have the late "heavy" rear axle? These have bigger wheel bearings than earlier cars; ISTR that the hub thread on those is 1 3/8" Hi Colin, Perhaps I should have been clearer; hub thread as in the rear hub nut; the one that retains the LJ 1 1/4 bearing on the rear casing on all the pre heavy rear axle cars. As you say, the hub puller thread is 1 3/8" x 16 TPI. RE: Q - screw-in block core plug removal - Colin Wilks - 21-02-2021 Assumptions, assumptions! Thanks for clarifying Stuart. |