2.25 Engine. Fitting the head
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- Опубликовано: 15 окт 2021
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Britannica Restorations Ltd
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Sherbrooke
Quebec
J1M2A3
Canada 
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I thought I knew a fair bit about Land Rovers and engines and gearboxes and tell I watched your videos thanks😁👍
Great to hear!
Now that was extremely satisfying.
Thanks Mike. 👍🏻😉
Glad you enjoyed it
Good video when I've done head bolts in the past I Mark them with a piece of chalk so i know I've done them😁👍
Good tip!
Thanks for going over my question on porting and polishing!
No worries!
Hi Mike, I have still got the same valve compressor as you have that I bought in the 60s, just had the alter it to fit the 200/300 Tdi heads. I hope that you have better luck with those valve springs than you had last time, there are some real crap ones knocking about. AGAIN!!! a great video with loads of information that leaves no room for doubt. Best wishes from Yorkshire Rob.
Pays dividends to get good sturdy tools! Was expensive when I got it back in the day, but still very handy!
Mike, good tip about using old head bolts as guides.
The 2.25 does have a dowel or at least what I would call it (247965). You can see the hole in the block and gasket.
The dowel stays in the head. Unfortunately, machine shops just machine it off instead of removing it.
That is a blanking plug for the oil way drilling - mine was recessed way down in the block
Coming on nicely 👍
Thanks 👍
Mike, where I did my apprenticeship, if we didn't have a torque wrench, the boss would say, "turn them up until they crack, then back them off half a turn".
Not heard that before!
@@BritannicaRestorations Shear and back one
That engine looks too nice to use
I guess I'll have to look at casting technics.
Believe it or not, I have the exact same valve spring compressor as you have.. I got it here in NZ fron a second hand tool dealer... probably about 30-40 years ago...
Yes, good tool!
Great vid Mike as always. I beat you to the rebuild, just! I finished my defender 2.25 a few weeks ago. Great to see a little engine like this being rebuilt. They’re one of the best in a defender i think. By the way I think your thermostat top is on the wrong way. Yours just out to the manifold side whereas mine points the opposite way?
Thanks
Tristan
there were are few different thermostat housing on these engines
I don't remember a breather baffle on my 1982 series. was it a later addition?
According to the parts book it should have one on an S3
Interesting they put a breather baffle on these but didn't carry the idea over to the Tdi.
Probably saved 5p!
Hi Mike - what are those little caps for that sit between the top of the valve stem and the rocker that I see some people using?
Only fitted on 2.5 Naturally Aspirated diesel onwards - to increase the surface area of the top of the valve, where the rocker pushes the valve down - prevents the rockers from getting a groove in them
There’s 9.8 Newton’s per Kilogram……if you can be bothered doing the calculations.
Nah! Just stick to good old foot pounds!
Hi Mike, can I ask a quick question on your last video the oil leak from the oil thermostat, I was waiting to stop the leak from the filter at the next oil change and as you said it was the o ring, O ring ordered but I noticed between the brass thermostat and spring there are two thick washers they don't look right to me have you seen this before, engine is a 300 tdi, thanks in advance Mike.
This is normal - 2 x thick washers between the spring and thermostat
@@BritannicaRestorations Thanks Mike where would we be without you.
Guess I will have to do everything you did to this 2.25 on my 17H that has been standing still for the last 10 years... How similar is 17H to the 2.25 5-bearing engine?
Almost identical except it may have a different tensioner on
@@BritannicaRestorations great, thanks Mike, your videos are really invaluable!!!
Mike, are core plugs the same as Welsh plugs? (non mechanically minded asker lol).
Technically no, but they serve the same purpose - Welsh plugs are like penny washers and when tapped in the centre they expand a bit to make a seal - however a lot of core plugs are named Welsh plugs - depends where you live
@@BritannicaRestorations Cheers Mike, I remember dad restoring an engine out of a 1965 Humber Super Snipe, he called them Welsh plugs.
Wouldn't oiling the headbolts lead to an over torque situation? My understanding is torque specs are all presumed unlubricated unless stated otherwise.
I think you'll find "torque" is all about rotation" and "helix angle" therefore smooth rotation of a fastener is essential. I used to build and maintain Power station steam turbines, threads were always lubricated before assembly/tensioning, using special lube, part of that was to stop thread "galling" on future disassembly.
Indeed - many a rusty blind tapped thread, can give a premature click on the torque wrench