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I thought I would start a thread on the engine rebuild of serial #10
So far these are the specs I have for the engine, it does not look like the original engine as I have not found any green paint on the long block so far, (there is green paint on the engine tin), only the two desert colors, the tan and that hideous salmon color that the FAV was painted last.
You could eat off of the inside, the engine appears to not have too many miles on it, would probably have run just fine but after sitting for 20 years I thought it would be prudent to at least do a refresh.
So the stated engine size of 2L is correct, at least in this case.
Bore 90MM, these are no longer manufactured but the case and heads are clearanced at 96MM for the case and 98MM for the head which means the now available 90.5 and thin wall 92MM piston/cylinder sets will fit.
Stroke 78MM, this is a modded German crank, possibly made by DPR, it clearly has the counterweights welded onto the crank, DPR has a rep for building the best cranks out there. Waiting to split the cases to see if it is marked.
Total CC 1985
Rods, Japanese made J331 clearanced for stroker,, said to be really good rods.
Cam, 260 deg @ .050",, total lift at valve .375"
Deck height 2.4MM, shim under cylinder .25MM (0.010")
Head (Brazilian casting 040) combustion chamber (taken from published data not yet confirmed) 52CC
Calculated compression ratio 8.4:1
Engine cases, Brazilian magnesium single relief clearanced for stroker and big bore cylinders.
I am waiting on some little clips that will allow me to split the cases without dropping the high side lifters, it is important to keep them in the same order they have been run in because I will likely run the original cam and lifters if they are as good as they look so far.
So far these are the specs I have for the engine, it does not look like the original engine as I have not found any green paint on the long block so far, (there is green paint on the engine tin), only the two desert colors, the tan and that hideous salmon color that the FAV was painted last.
You could eat off of the inside, the engine appears to not have too many miles on it, would probably have run just fine but after sitting for 20 years I thought it would be prudent to at least do a refresh.
So the stated engine size of 2L is correct, at least in this case.
Bore 90MM, these are no longer manufactured but the case and heads are clearanced at 96MM for the case and 98MM for the head which means the now available 90.5 and thin wall 92MM piston/cylinder sets will fit.
Stroke 78MM, this is a modded German crank, possibly made by DPR, it clearly has the counterweights welded onto the crank, DPR has a rep for building the best cranks out there. Waiting to split the cases to see if it is marked.
Total CC 1985
Rods, Japanese made J331 clearanced for stroker,, said to be really good rods.
Cam, 260 deg @ .050",, total lift at valve .375"
Deck height 2.4MM, shim under cylinder .25MM (0.010")
Head (Brazilian casting 040) combustion chamber (taken from published data not yet confirmed) 52CC
Calculated compression ratio 8.4:1
Engine cases, Brazilian magnesium single relief clearanced for stroker and big bore cylinders.
I am waiting on some little clips that will allow me to split the cases without dropping the high side lifters, it is important to keep them in the same order they have been run in because I will likely run the original cam and lifters if they are as good as they look so far.
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