We decide we will open the engine against the advice of the engine builder and at least check the valve gaskets and all wear parts in the upper area. Depending on what we find, it may be fine or we may have to consider a complete overhaul. There are only a few steps left to get to the upper part of the engine. It would be foolish not to check here. I have asked two other engine builders here in my area. Both of them only disassembly the engine for overhaul. They also say if you have no problems then leave it closed. If the engine could be removed quickly and disassembly wasn't so time-consuming, I would certainly agree. I'm sure Murphy's Law will kick in if I don't do it.
You need to be patient if you want see what condition we find as the Engine will be the last we touch. First we will go on with the front axle.
I like to hear you recommondations for this
The usual around i have in my mind like gaskets, lifters, ARP Studs, maybe ventils grinding
I rule out a warped or cracked cylinder head for the time being.
The planning of a cylinder head may entail further steps. I once had the pleasure of having to overhaul a warped cylinder head on a 4-cylinder gasoline engine of my Volvo 745 16V...
All this want i give to the enginebuilder as it is timeconsuming - anyway now we do it ourself and the money we spare will go in tuning.
The Rebuild of our 6.2 Dieselengine by the enginebuilder with all recommondated improvements was complete bill 15382 Euro. 10882 for all parts (only block used, all other new) and 4500 Euro for wage. The Duramax build had taken more wage as it is much more work on disambling.
All said it was very expensive but we only take high quality pistons, bearings, gaskets and the special wish for ARP Studs, Main stud girdle, Valve cover girdle, Serpentinenbelt with 2 alternators (Military Truck), Fluiddamper, High Volume Oilpump, Balance Waterpump... a lot of expensive Parts - but we want this and the costs was ok for us. The Enginebuilder does a great job.
The same will be with the Duramax. I may wait some months longer but at the end i have a renew, reliable engine. First intention was driving until the first failure but this is not our way to handle a Vehicle for daily use.
