11-03-2012, 04:31 PM
any engine with an alloy head thats overheated MUST be pressure tested for cracks, the skim is the final part of the engineering firms job.
dont re-use stretch bolts unless manufacturer allows it, some manus. say that you dab a certain coloured paint to show they have been used once only--------but not all garages are aware of this !! play safe and renew stretch bolts every time (i have snapped a ford cvh and a 1400 renault bolt so i wont be fking up for a 3rd time) no matter if your customer says they are skint !!!
dont use sealant, it was common In the previous millenium to use hylomar gasket sealant, but technology has moved on since then.
as advised already, make sure you bleed system---HEATER MUST BE PUT INTO THE HOT POSITION AS WELL, this gets more water circulating through haeter matrix.
dont re-use stretch bolts unless manufacturer allows it, some manus. say that you dab a certain coloured paint to show they have been used once only--------but not all garages are aware of this !! play safe and renew stretch bolts every time (i have snapped a ford cvh and a 1400 renault bolt so i wont be fking up for a 3rd time) no matter if your customer says they are skint !!!
dont use sealant, it was common In the previous millenium to use hylomar gasket sealant, but technology has moved on since then.
as advised already, make sure you bleed system---HEATER MUST BE PUT INTO THE HOT POSITION AS WELL, this gets more water circulating through haeter matrix.