On Jan 14, 2018, at 10:41 AM, CLIVE SHERRIFF csherriff99@gmail.com [mg-tabc] wrote: Boring a late TD XPAG out to 1500cc OK, I have acquired a competition XPAG block with casting number 168421. 168421 was used for the Wolseley 4/44, later TD, & TF cylinder block, (see below) so it has no Octagon cast in, and has round water holes on the block cylinder head face(blanked off on this competition block). Annoyingly, It does not have it's brass engine number plate to help matters. It has had a new rebore to 71mm, and has not been linered, so as a TF 1500 block is 72mm bore, I deduce this must be a 1250 TD/TF bored out. My question is therefore whether the 168421 block casting was the one used for the 1500 TF, or was there another, thicker walled block used for this, and how far I might be able to bore this block 168421 out before the pistons become water cooled ! If anyone knows, or has a TF 1500 handy to check their casting number, I'd be pleased to hera from them. Clive For interest, these are the block and head casting numbers I am aware of for the MG/Wolseley/Morris engines: [b]Model/Item Casting Number[/b][b][/b][b]Cylinder blocks[/b]Early Morris/Wolseley 10 1140cc X cylinder block, oval water holes 22500Later post war 1140cc cylinder block, oval water holes 24144Very early 1250cc cylinder vblock with no timing chain tensioner 24001Early MG 1250cc X cylinder block, octagon cast in, oval water holes 24142 & 24146Later post war 1250cc MG cylinder block, octagon cast in, oval holes 244454/44, later TD, & TF cylinder block, no octagon, round water holes 168421 [b]Cylinder-heads[/b]Early 1140cc cylinder-head, no centre oil drain, oval water holes 22812Later postwar 1140cc cylinder-head, same as early 'T' type, oval holes 22952Later TD, & Y oval hole cylinder head, short reach plug 229524/44, TD & TF cylinder-head, round water holes, long reach plugs 168422Late 4/44 cylinder-head, round water holes 168425 m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm [img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1522511968&sig=F6oaEXqQ_YBI9YGnVVObHw--~D[/img]Virus-free. www.avast.com
Clive 168421 is a 1250 cc block , no MG cast in, round water holes originally, with water passage between #1 and 2 bores and #3 and 4 bores. XPEG 72 mm 1500 block has no MG and number AEF117 cast on the left side of the block. In this block, cylinders 1 and 2 are siamized with no watwr passage between. Same for Cylinders 3 and 4 are siamized. So totally different blocks. BTW, TF 1500 heads are stamped AEF118 and are of course round hole and 3.022 thick . Hard to say when you will hit water, but 71 mm seems on the edge to me. However if you hit water, or a too thin wall thickness, you can liner the engine to 72 mm. Now for sure you will hit water with the liner bore. Bob Bob Grunau 150 Pinewood Trail, Mississauga, Ontario Canada, L5G-2L1 905-274-4136 From: mg-tabc@yahoogroups.com [mg-tabc@yahoogroups.com] On Behalf Of CLIVE SHERRIFF csherriff99@gmail.com [mg-tabc] Sent: Sunday, January 14, 2018 1:42 PM To: yahoogroups Subject: [mg-tabc] Boring a late TD XPAG out to 1500cc with block casting number 168421 Boring a late TD XPAG out to 1500cc OK, I have acquired a competition XPAG block with casting number 168421. 168421 was used for the Wolseley 4/44, later TD, & TF cylinder block, (see below) so it has no Octagon cast in, and has round water holes on the block cylinder head face(blanked off on this competition block). Annoyingly, It does not have it's brass engine number plate to help matters. It has had a new rebore to 71mm, and has not been linered, so as a TF 1500 block is 72mm bore, I deduce this must be a 1250 TD/TF bored out. My question is therefore whether the 168421 block casting was the one used for the 1500 TF, or was there another, thicker walled block used for this, and how far I might be able to bore this block 168421 out before the pistons become water cooled ! If anyone knows, or has a TF 1500 handy to check their casting number, I'd be pleased to hera from them. Clive For interest, these are the block and head casting numbers I am aware of for the MG/Wolseley/Morris engines: Model/Item Casting Number Cylinder blocks Early Morris/Wolseley 10 1140cc X cylinder block, oval water holes 22500 Later post war 1140cc cylinder block, oval water holes 24144 Very early 1250cc cylinder vblock with no timing chain tensioner 24001 Early MG 1250cc X cylinder block, octagon cast in, oval water holes 24142 & 24146 Later post war 1250cc MG cylinder block, octagon cast in, oval holes 24445 4/44, later TD, & TF cylinder block, no octagon, round water holes 168421 Cylinder-heads Early 1140cc cylinder-head, no centre oil drain, oval water holes 22812 Later postwar 1140cc cylinder-head, same as early 'T' type, oval holes 22952 Later TD, & Y oval hole cylinder head, short reach plug 22952 4/44, TD & TF cylinder-head, round water holes, long reach plugs 168422 Late 4/44 cylinder-head, round water holes 168425 m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm Virus-free. www.avast.com
Some time ago Brown and Gammons here in Olde England announced production of new 1500cc blocks, then it all went quiet! The last time I spoke to Malcolm (a year ago) he said they were "imminent". Well, having just broused their website, there they are: 1500cc. blocks, p/n AEG22, for a mere [b]3000GBP[/b] (exc. VAT). I have not seen any mention of them in their [b][i]Safety Fast! [/i][/b]adverts, so don't know if they actually have any, and if so, how good they are...they also have sumps (395GBP), camshafts (various, over 400GBP for a cross-drilled one) and of course cranks (about 2000GBP), all exc. VAT. I remember a few years ago a somebody in Australia also announced new blocks able to use MGB 5-bearing cranks and rear main seals, but looking like XPAG/XPEG externally: whatever happened to those? oc[b]T[/b]agonally Roger On 14/01/2018 19:11, 'Bob Grunau' grunau.garage@sympatico.ca [mg-tabc] wrote: Clive 168421 is a 1250 cc block , no MG cast in, round water holes originally, with water passage between #1 and 2 bores and #3 and 4 bores. XPEG 72 mm 1500 block has no MG and number AEF117 cast on the left side of the block. In this block, cylinders 1 and 2 are siamized with no watwr passage between. Same for Cylinders 3 and 4 are siamized. So totally different blocks. BTW, TF 1500 heads are stamped AEF118 and are of course round hole and 3.022 thick . Hard to say when you will hit water, but 71 mm seems on the edge to me. However if you hit water, or a too thin wall thickness, you can liner the engine to 72 mm. Now for sure you will hit water with the liner bore. Bob Bob Grunau 150 Pinewood Trail, Mississauga, Ontario Canada, L5G-2L1 905-274-4136 From: mg-tabc@yahoogroups.com [mg-tabc@yahoogroups.com] On Behalf Of CLIVE SHERRIFF csherriff99@gmail.com [mg-tabc] Sent: Sunday, January 14, 2018 1:42 PM To: yahoogroups Subject: [mg-tabc] Boring a late TD XPAG out to 1500cc with block casting number 168421 Boring a late TD XPAG out to 1500cc OK, I have acquired a competition XPAG block with casting number 168421. 168421 was used for the Wolseley 4/44, later TD, & TF cylinder block, (see below) so it has no Octagon cast in, and has round water holes on the block cylinder head face(blanked off on this competition block). Annoyingly, It does not have it's brass engine number plate to help matters. It has had a new rebore to 71mm, and has not been linered, so as a TF 1500 block is 72mm bore, I deduce this must be a 1250 TD/TF bored out. My question is therefore whether the 168421 block casting was the one used for the 1500 TF, or was there another, thicker walled block used for this, and how far I might be able to bore this block 168421 out before the pistons become water cooled ! If anyone knows, or has a TF 1500 handy to check their casting number, I'd be pleased to hera from them. Clive For interest, these are the block and head casting numbers I am aware of for the MG/Wolseley/Morris engines: Model/Item Casting Number Cylinder blocks Early Morris/Wolseley 10 1140cc X cylinder block, oval water holes 22500 Later post war 1140cc cylinder block, oval water holes 24144 Very early 1250cc cylinder vblock with no timing chain tensioner 24001 Early MG 1250cc X cylinder block, octagon cast in, oval water holes 24142 & 24146 Later post war 1250cc MG cylinder block, octagon cast in, oval holes 24445 4/44, later TD, & TF cylinder block, no octagon, round water holes 168421 Cylinder-heads Early 1140cc cylinder-head, no centre oil drain, oval water holes 22812 Later postwar 1140cc cylinder-head, same as early 'T' type, oval holes 22952 Later TD, & Y oval hole cylinder head, short reach plug 22952 4/44, TD & TF cylinder-head, round water holes, long reach plugs 168422 Late 4/44 cylinder-head, round water holes 168425 m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm Virus-free. www.avast.comOn Monday, January 15, 2018, 9:05:45 AM EST, Roger Furneaux roger.46tc@gmail.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote:
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