Club 80-90 Forums

can anyone tell me who has done the conversion if they used a standard sump gasket or if they used the same baffled type that comes with the 1y?

also the rocker cover is different on mine so did you keep the 1y cover or did you some how manage to use the 1.6 one.was just wondering because of the breather pipe is different....cheers...dave

I used the original style 1.9 one. It has the windage tray in it [helps to keep the oil near the oil pump pickup] and the seal is vastly superior than the older ones. Can even be reused if taken off carefully. valve cover gaskets are not the same .you will have to use the 1.9. Replace the seals at the studs also, they get crushed after a short time, and with the way the motor leans over they will leak otherwise.

thanks alot caveman..your a star...did you use the 1.9 dipstick or did you replace it with the t25 style one?

Okay now the dipstick has been a problem. I had to use the 1.7 one, but for some reason it isn't accurate. With 4.75 liters [or whatever the spec is] the oil is only touching the bottom line of the stick, as if it was still missing 1 liter. In the future i plan on changing my oil pump and pan and will check to see how far it runs into the sump. I'm not sure why there is such a difference between using the same dipstick and tube on what looked like the same block, but i have a feeling the 1.9 block is thicker at the bottom [stronger bearing girdles] and so doesn't reach as far. Perhaps before taking the old tube out, drain your oil, put in the exact amount that is specified and see where it comes to on the dipstick . If it doesn't show or doesn't show on the stick at the right spot, extend it ,or find a longer one at the wrecker's.

yes i will check that on mine too...think i read somewhere on here about extending it to suit,the 1.9 tube is a real good fit too so might stick with that one for now...right i have all the info i need now to finish the swap..just waiting for some parts from brickwerks and hopefully itll be in at the weekend....then its brown trouser time

Yes the mod is in wiki under T25 alternative engine. It also shows the mod for the intake manifold.

cripes..just seen this on the brick-yard
Don't use the windage tray. It increases the width of the gasket as it were, then when you try to get the bottom bolts from bellhousing to sump they won't line up.
Leaving the sump loose while fitting the engine, I don't see how that would work as the sump is still that little bit further away from the engine.
If you insist on fitting it then you will have to modify it to fit the pick up pipe, then increase the diameter of the holes in the bellhousing that the mounting bolts pass through.
If you don't then I should imagine that it will crack the sump when tightening and putting unnecesary stress onto the sump.

I'm not the only one to have done this on a T25 . The trick is to tighten everything evenly, don't torque down one bolt at a time. But use the older one if you don't want to take a chance.

well the engine is in and running very well ,took it for a spin this aftr noon and very impressed.only thing is i couldnt get the sump to bell housing bolts to go in,they were at the wrong angle and could have done as it said on the brickyard....soooo...im thinking of trimming the bolts shafts down a couple of mm so they go in lined up.
are these required anyway as the seat engine didnt have them?

the Seat was never fitted with the Angled Sump. Ok you are fitting the 1Y into a T25 to the replace the shagged 1.6 CS. therefore its not a direct replacement engine its a conversion, basicly you are just using the engine (lump or block) to get it work as functionly as possible you use all the bits from the 1.6. engine and all tinware, you use the flywheel and clutch 215mm, keep fuel pump & injectors + injector pipes from the 1Y,
You should have ditched the windage tray and original sump pan from the 1Y.
as you said you should have taken the advice from Simon Baxter (brikyard) thats whats its there for ??
If you reem down the bottom 2 sump bolts and get them to fit properly what do you think might happen when you tighten them up,? As the sump will be drawn into the Bell housing casing, in your case I think you will finnish up with a cracked sump, as everything else is sealed up, sump pan will not be able to move.-----------------------

You should have ditched the windage tray and original sump pan from the 1Y.
as you said you should have taken the advice from Simon Baxter (brikyard) thats whats its there for ??
If you reem down the bottom 2 sump bolts and get them to fit properly what do you think might happen when you tighten them up,? As the sump will be drawn into the Bell housing casing, in your case I think you will finnish up with a cracked sump, as everything else is sealed up, sump pan will not be able to move.-----------------------

How come i had no problem with mine and i know of one other person with an AAZ and he didn't have any issues either. I had it on the lift last week and checked just this issue after it was brought up, just to make sure and eveything's fine. no leaks, no cracks. You just have to tighten up everything evenly.

well i think ill just leave them out for now and buy a t25 gasket and fit it when i can....was worth a try.it only seemed about 2mm out but i suppose 2mm is everything when it will or wont fit.from what i can tell you can get in to undo it in situ maybe have to remove a couple of things out the way but no biggy