Jonathan wrote: > I'm new and currently interested at buying a KR-2 and I was wondering 2 > things. The compressions are 58, 71, 73, 75 is this good?
These numbers are the result of a differential compression test, with 80 being perfect, 0 being "dead hole". The rule of thumb is if there's more than a 20% difference in compression, something needs to be fixed. 80/58=1.38, so you've got a 38% difference in that one cylinder, so it needs fixing. It may be something as simple as a tight exhaust valve on a VW. To give you a clue of how that stacks up, the worst compression I've seen on my engine in the last 330 hours has been 78/80 on one cylinder. Most of the rest at 80/80. Mark Langford ML at N56ML.com website www.n56ml.com
