View Full Version : manifold problem
when i start my car cold it seems to have a blow from the manifold but when i put my hand over the tail pipe it dont seem to be leaking any ideas please? also when reved it sounds verry ticky but quiets down after a while iv had the pre cat changed
Try nipping the bolts up a little tighter.
i was thinking this its going back to the mechanik sunday and have gave him a new gasket if this one is no good but thought id ask if anyone had ever had the same prob thank you tho ill try that first
Yeah always have this problem with these engines.... I think sometimes its just their nature...
andys sri-t
30-10-2008, 19:19
they are common for cracked manifolds if its blowing from the gasket where it meets the head you normally see black soot on the head id say prob cracked manifold but might be wrong.
andys sri-t
30-10-2008, 19:20
are you sure its not blowing where the precat meets the turbo
heard they can crack where about do they crack? iv heard of the turbo gasket to pre-cat it didnt have one but is it worth getting one? how much? ond where from? ony ideas please?
Check the manifold gasket near the thermostat, the studs sheer off there and can blow when cold....I know this as mine does.
wot happens when they shear off can you get them out?
andys sri-t
31-10-2008, 21:53
they can srack around the no3 area common on al vx manifolds not just turbos you can some times weld them my mate gas welded his and its been fine also the face of the manifold where it meets the head can warp if the studs shear off you can get in with a 90degree air drill mine came out as i was drilling cos i have some lefthanded drill bits but you can use an easyout
My gasket near the thermostat went on my old manifold and used to make a ticking/knocking sound until it warmed up and expanded, the seals went in the turbo too so I ended up leaving it till I replaced the turbo before doing the gasket.
Its not an easy job to get to the gasket so if it aint bothering you then I would leave it for the time being.