Dressing top of cylinder block
Posted: Fri Dec 17, 2010 8:09 am
Hi
I see that some folk have had cylinder head problems, and after a replacement head, the next one fails.
This failure of new heads is sometimes put down to the fact that the block surface was not dressed. I am querying this, as unless the head gasket has failed between cylinders, and caused burning across the top of the block, surely a new head gasket is all that is necessary, and new bolts with the new head.
I presume that the block is dressed with a stone and carborundum paste, so this means removing the whole engine, or carborundum will get into the oilways...if this is the case, is it not better to machine the surface until trued?
The reason for my asking, is that I have had some silicon hoses failing, and , hopefully, changing the hoses will cure the problem....if it is the head, getting the block dressed over here would be about as easy as catching wind in a butterfly net!...there are very limited skills here, and it would be daft to get a new head fitted if dressing is a must!....it would mean that the Bongo would have an appointment with a disc cutter!, and sold as scrap metal...
Thanks in anticipation of any pointers!
Cheers
Helen
I see that some folk have had cylinder head problems, and after a replacement head, the next one fails.
This failure of new heads is sometimes put down to the fact that the block surface was not dressed. I am querying this, as unless the head gasket has failed between cylinders, and caused burning across the top of the block, surely a new head gasket is all that is necessary, and new bolts with the new head.
I presume that the block is dressed with a stone and carborundum paste, so this means removing the whole engine, or carborundum will get into the oilways...if this is the case, is it not better to machine the surface until trued?
The reason for my asking, is that I have had some silicon hoses failing, and , hopefully, changing the hoses will cure the problem....if it is the head, getting the block dressed over here would be about as easy as catching wind in a butterfly net!...there are very limited skills here, and it would be daft to get a new head fitted if dressing is a must!....it would mean that the Bongo would have an appointment with a disc cutter!, and sold as scrap metal...
Thanks in anticipation of any pointers!
Cheers
Helen