engine swap or repair/emissions/long
Our 88.5 Sami had not been able to test for emissions (Illinois) because it was "grossly underpowered" and/or did not produce enough exhaust. After multiple attempts, it occurred to me that a) the Sami is too light to drive the huge dyno rollers and b)the tail pipe is too small to accomodate the big funnel shaped exhaust collector. I dropped the pressure in the rear tires, added a whole lot of weight to the rear and had my heavy duty wife sit in the passenger seat during the test and insisted that they fiddle with the exhuast until they got a decent fit.
Now it was testable, but failed! My wife and I were notified that our driver's licenses will be suspended effective 1-20-05! Hydrocarbons too high. Timing is at 8 BTDC, idles perfectly at 800 rpm and runs very strong.
However, I remember that compression was more than 10% different in cyl. #2. I'm thinking bad exhaust valve. How difficult is it to get parts and fix? Am I better off upgrading engine? What is the easiest and affordable fix?
Is it possible that there is something else I can look at to reduce high hydrocarbon output? This thing runs smooth, I had premium and "emissions passer" stuff in the tank at the time.
Am I wrong in assuming that weak compression will kick up hydrocarbons to the point that I really should not bother with anything else until it is fixed? Affordable engine upgrade suggestions?
I'll do a leakdown Thursday or Friday to get more info but time is running out and we're getting 10" of snow tomorrow! TIA, Charlie