Oh wow, I used to have one of those. Well, my ex did I should say. A Merkur XR4TI. That car leaked or burned every fluid it had other than brake fluid. I'm not that brave anymore but I hope you get it sorted out!
If its popping through the intake it may be a bent intake valve. Jumping timing can be disasterous. Need to run a compression check on all cylinders.
A piston most likely kissed a valve, when the timing belt or chain broke.you could do a leak down test or a compression test to see.
This.....
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