MPJG rebuild

[Mick bibby]

Hi guys looking for any advise on the rebuild of my MPJG . I had all white metal bearings a redone and a couple of conrods straightened, I bought it as seized and as you may see the thing had a lucky escape, car was in a very poor state hench the new everything
I can’t find a schematic for how it all goes together
I can remember how it does but I am just aware of falling into that trap just because it was on/in the engine doesn’t mean it should be there, looks like it’s been raced. I found bill Davis site which is superb but no detail , also it’s very tight to turn over and needs a short bar to move , I’ve read somewhere this is correct
Help
Regards Mick

[Rob Reilly]

I wonder do you have the manual written by WE Blower and published first by Motor Racing Publications and later by Bentley? It covers M to TF and has lots of pictures of the MPJG engine. I found two copies on ebay. There is also the Autobook manual by Kenneth Ball covering TA to TF.

Unfortunately my TA lost it's MPJG engine 65 years ago, so I only have acquaintance with the MGA 1500 engine it acquired then.

[Mick bibby]

Hi Bob that’s great I do have,I am pretty sure I could put it together without the manual and I’ve took loads of pictures and marked accordingly on de construction, it’s just that I found a medium sized brass nut (bsp)in the sump which puzzled me ! Starting to think it could of been off an oil temperature sensor
I’ve made a start on my steel bits but sadly I am on light duties until new year , the Docs told me I can’t play out till then!!!mmm I’ve got other stuff to post sadly not many of them interesting. May be worth doing a thread on the build let’s see

[Jret]

https://1drv.ms/i/s!Au568aZ0tKvsipFKQ8P ... A?e=Aj5ZKU
This link is to a picture from Chris Harvey's book 'The Immortal T Series' and shows a cut away diagram of an MPJG engine.
An important point in building one is to ensure to remove the crank studs on the oil gallery side and clean the well beneath them and it can be full of old gunk and stops the oil getting to the main bearings.

[Mick bibby]

Thanks Jret
sounds like good advise ill check it out when i am fit to go in my garage hopefully
In January .when i had the white metal bearings done it was spotless when it came
back the lads told me i could build straight on it . I did do a few checks in oil ways etc
Found no gunge at all.
Many thanks

[Mick bibby]

Hi Jret
Just sneaked into my garage see picture, I’ve took the small bolts out in the area of the plugs on the gallery, do you know how they come out ? Are they screwed in , or just secured with the small bolts.
Looks like this engine has had an hard life !