Thread: Tatra V8 engine tear down project

Originally Posted by NCArcher

The build you linked looks and sounds awesome. Looks a bit tricky to ride though.

Alan Millyard installed an 8 litre V10 into a bike frame and ran over 200 mph (320 kph) so this one should be a doddle in comparison.

https://www.youtube.com/watch?v=ZtRnAI1jHao

Originally Posted by Gavin Newman

Alan Millyard installed an 8 litre V10 into a bike frame and ran over 200 mph (320 kph) so this one should be a doddle in comparison.

https://www.youtube.com/watch?v=ZtRnAI1jHao

Yeah have watch Alan Millyards videos, i really like the flying Millyard bike i have a couple of P&W cylinders and pistons Mmmmm maybe when i retire from work could be a new project

Just got a spare engine block this one is the H block, all i know at the moment about the H block is the tappets are different and i think the cam is to Will look into more tomorrow so far looks to be in good shape. LOL it only took about 6 months to get here

IMG_20220812_175511.jpgIMG_20220812_175535.jpgIMG_20220812_175557.jpgIMG_20220812_175650.jpg

Remove the tappets and cam shaft,they are the same as in the first engine i strip down. My thinking it will look like this one in the photo,anyway the tappets look to be in good shape and so those the cam shaft all good for spares Did a mock up of the block and goldwing frame,will need to stretch the frame a bit but i think it's doable Just purchase Moto Guzzi gearbox housing for mock ups and measurements purposes as well.
Tatra parts 001.jpgTatra parts 003.jpgs-l1600.jpgTatra parts 005.jpgTatra parts 006.jpga39211-1-2.jpg_t_1639524025.jpga39211-5-2.jpg_t_1639524025.jpg

Started media blasting the heads with walnut shells, not good need high pressure so change over to glass beads and WOW!! cleans up very nicely I found on 3 of the heads so far there is a split,hole on the inlet side there is a shim that is place over that area which may seal it the split hole the hole breaks thru the push rod hole.

Tatra parts 013.jpgTatra parts 014.jpgTatra parts 015.jpgTatra parts 016.jpgTatra parts 008.jpgTatra parts 009.jpg

i don't think those holes really need to be sealed as the rocker area and the pushrod tube are both common to the oily side of the engine. probably a bit of core shift + soviet quality.

Originally Posted by snapatap

i don't think those holes really need to be sealed as the rocker area and the pushrod tube are both common to the oily side of the engine. probably a bit of core shift + soviet quality.

Yeah you right there on closer inspection of the heads the inlet port is sealed and what i see is that oil will leak into the push rod hole and back into the block, all the heads are like that just how they are design.

After about 6 months i finally received my Tatra motor and block with crank,cam shaft, oil pan and timing chain cover plus some other bits. The motor has 50 hours run time on it, this type of motor is use on gen sets and has a bit more higher compression uses a single carburetor and a mechanical speed controller which has been remove.

tatra 100.jpgtatra 099.jpgtatra 098.jpgtatra 097.jpgtatra 096.jpgtatra 095.jpg