24-11-2017, 11:15 AM
Hi David,
Is it leaking from the top of the stud or around the base? As long as the bottom of the manifold is sound and flat a new gasket may do the trick (if not, you could replace the manifold, or you could try lapping this face on some abrasive paper on a flat surface). If leaking from the top, perhaps some gasket goo (heat resistant) or a fibre washer. Like the side manifold, I'd be careful of the temptation to tighten the nut, unless you know the stud is screwed into sound metal.
As an aside, I have never used anti-freeze in my car, I simply drain it when not in use. This is partly to avoid getting a faceful of anti-freeze when I brake (recently discussed on the forum) but also because glycol is a less efficient coolant than water and your engine will run hotter; fine if your cooling system is in good shape, less fine if it isn't.
Is it leaking from the top of the stud or around the base? As long as the bottom of the manifold is sound and flat a new gasket may do the trick (if not, you could replace the manifold, or you could try lapping this face on some abrasive paper on a flat surface). If leaking from the top, perhaps some gasket goo (heat resistant) or a fibre washer. Like the side manifold, I'd be careful of the temptation to tighten the nut, unless you know the stud is screwed into sound metal.
As an aside, I have never used anti-freeze in my car, I simply drain it when not in use. This is partly to avoid getting a faceful of anti-freeze when I brake (recently discussed on the forum) but also because glycol is a less efficient coolant than water and your engine will run hotter; fine if your cooling system is in good shape, less fine if it isn't.