944 Turbo Wossner Ring Gap
02-17-2017, 12:55 AM
#16
I believe you are over thinking it, you are talking .001". The engine block will have a max temp of 240 F. I have gapped in a cold garage (50 F) and summer temps (upper 90s) in Houston and have not had any problems.
Of course you can be like a lot of members on this site and move your motor into the living room so you can work on it and watch YV at the same time.
Of course you can be like a lot of members on this site and move your motor into the living room so you can work on it and watch YV at the same time.
02-17-2017, 07:39 AM
#17
Addict
Rennlist Member
Rennlist Member
I Had block in the car at about -15°C outside temp, brought it in the garage and tried to put pistons that were inside the house on the shelf above the radiator and were probably at about +40°C. They didn't fit inside the cylinder. 
Once the temp equalised they went in easy. So it does affect tolerances a bit.
The most important is that everything is at about equal temp.
Once the temp equalised they went in easy. So it does affect tolerances a bit.The most important is that everything is at about equal temp.
02-20-2017, 02:20 PM
#18
Drifting
There is no ambient temp requirement for gaping rings. Having said that I believe there is an unwritten assumption that you are working in a comfortable environment and not outside in Serbia during the winter. lol