Engine GA000099, An early GA engine rebuild thread Options

[Superhawk996]

Last week I bought engine GA000099 from Freezing914 in the hopes of picking up some spare parts to support rebuild of the engine that came with my vehicle.

During the teardown of my vehicles engine, it is quickly becoming clear that the engine was abused by some DAPO. Cooling flaps and thermostat had been removed. Rust in the sump. The crank was scored and already 0.010" undersized. The oil pump was torn up. This is just the tip of the iceberg on the engine that came with my vehicle. (IMG:style_emoticons/default/chair.gif)

14 hours of driving seems to have netted me an engine that might be worthy of a rebuild. (IMG:style_emoticons/default/piratenanner.gif)

This engine appears to be bone stock. D-jet mostly complete. As an added bonus I discovered upon teardown that none of the cooling tin fasteners have ever been disturbed. No screwdriver marks!

But . . . like any engine of this age and unknown origin, it absolutely needs to be gone though.

[Superhawk996]

Time has come to tear down the heads to see if they might be good. On my original engine the heads turned out to be a disaster. I'll post more on those heads under my vehicle build thread.

On these heads I used my homemade valve spring tool. Just a few simple bits turned up on the lathe and the mill to use a C-Clamp.

The slots allow me to fish out the keepers.



As usual, there were the typical seized exhaust studs. Ended up using one of my favorite tools to extract the studs.



This tool plus a little heat usually works. But, of course, there is always the one stud that someone broke off leaving no threads. Tried the usual tricks. . .penetrating oils . . . heat . . . vice grips. Finally resorted to the heavy artillery & welded on a nut.



And of course the inevitable occurred.




We temporarily interrupt this post -- Clear the children from the room.



Guess we'll save that project for later. Need to bead blast the carbon off the combustion chambers and ports to see if there is cracking. If there isn't, then I'll deal with the broken stud by drilling it out in the mill using a left hand drill bit. If necessary it could be inserted but I prefer not to do that.