TC Bonnet Catches

[tud1.t21@btinternet.com]

Hi Listers, Can anyone tell me the style/type and thread size of machine screws that hold the bonnet catches on the TC bonnet? Also, I need to replace a broken ADMEL spring. This is the one which is in the sliding section of the catch channel. If any can help it would be much appreciated. Must be original not repro. Regards Mike Bate, TC10200 - Summer in Cornwall, UK.

[Joe Curto]

I suspect the screws are Brass 2 BA, as for spring they are probably Handed but the latch spring assembly is probably the same as TD and is probably easier to change the full assembly than trying to remove the springs Joe Curto 718-762-7878 www.joecurto.com -----Original Message----- From: mailbox@tudorstudios.co.uk [mg-tabc] mg-tabc-noreply@yahoogroups.com> To: mg-tabc mg-tabc@yahoogroups.com> Sent: Sun, Jul 22, 2018 3:25 am Subject: [mg-tabc] TC Bonnet Catches   Hi Listers, Can anyone tell me the style/type and thread size of machine screws that hold the bonnet catches on the TC bonnet? Also, I need to replace a broken ADMEL spring. This is the one which is in the sliding section of the catch channel. If any can help it would be much appreciated. Must be original not repro. Regards Mike Bate, TC10200 - Summer in Cornwall, UK. #ygrps-yiv-890777196 #ygrps-yiv-890777196AOLMsgPart_2_d6a7258d-5a79-47d1-801c-0cf2846a75f4 td{color:black;}#ygrps-yiv-890777196 .ygrps-yiv-890777196aolReplacedBody #ygrps-yiv-890777196aolmail_ygrp-mkp {border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#ygrps-yiv-890777196 .ygrps-yiv-890777196aolReplacedBody #ygrps-yiv-890777196aolmail_ygrp-mkp hr {border:1px solid #d8d8d8;}#ygrps-yiv-890777196 .ygrps-yiv-890777196aolReplacedBody #ygrps-yiv-890777196aolmail_ygrp-mkp #ygrps-yiv-890777196aolmail_hd {color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;}#ygrps-yiv-890777196 .ygrps-yiv-890777196aolReplacedBody #ygrps-yiv-890777196aolmail_ygrp-mkp #ygrps-yiv-890777196aolmail_ads {margin-bottom:10px;}#ygrps-yiv-890777196 .ygrps-yiv-890777196aolReplacedBody #ygrps-yiv-890777196aolmail_ygrp-mkp .ygrps-yiv-890777196aolmail_ad {padding:0 0;}#ygrps-yiv-890777196 .ygrps-yiv-890777196aolReplacedBody 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[Roger Furneaux]

hi Mike - they are slotted round head 0BA: the same as M6, which I probably have in stainless. cheers Roger (watching German GP, Vettel has just crashed out!!!)

On Sun, Jul 22, 2018 at 8:25 AM, mailbox@tudorstudios.co.uk [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] Hi Listers, Can anyone tell me the style/type and thread size of machine screws that hold the bonnet catches on the TC bonnet? Also, I need to replace a broken ADMEL spring. This is the one which is in the sliding section of the catch channel. If any can help it would be much appreciated. Must be original not repro. Regards Mike Bate, TC10200 - Summer in Cornwall, UK.

[Benny Grumer]

The spring on the AMAL letch is made of carbon steel if you re plate the unit it should go through a de hydrogen process

to reduce the brittleness (heating the part after the plating) otherwise it will brake like glass.

Regards

Benny

__________ Information from ESET NOD32 Antivirus, version of detection engine 17759 (20180723) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com

[jan johnson]

Hydrogen embrittlement is caused by plating too fast; if you slow down the process, you can virtually eliminate it,

but most Job-Shop platers want to speed things up, ergo: brittle parts that then must be subjected to high heat to

allow the hydrogen to escape before it does damage to the steel/metal. I often wonder when I see chromed wheels

for sale, just what was done, if anything (think: China) to deal with this! Jan/Fairfield, Ohio

 

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