Duratec 2.5 crank

**Durescort** · 11-04-2016, 19:01

Hi out there; I need to know how far below the bottom of the block the crank and/or conn rod swept envelope is for both the 2.3 and the 2.5 engines. (I only have a 2.0l to play with at the moment)
If anyone has the bottom off one of these I'd appreciate if you could measure the worst (lowest) point.
Thanks.

**hansgti** · 12-04-2016, 21:20

2.3 l3 mazda. If you find a 2.3 Ranger crank it doesnt have that huge cog to drive the balance shafts.

**Durescort** · 13-04-2016, 18:21

Thanks so far. Ignoring the huge cog, what is the lowest most protruding part in a full rotation and by how much?
It looks like the counterweights may swing further out than the conn-rods.

**Cort500** · 15-04-2016, 08:29

is this for your long awaited cast wet sump Roger?

**Durescort** · 15-04-2016, 22:32

Originally Posted by Cort500

is this for your long awaited cast wet sump Roger?

For both wet and dry sumps.

**Leafy** · 08-06-2016, 02:44

Originally Posted by Durescort

Thanks so far. Ignoring the huge cog, what is the lowest most protruding part in a full rotation and by how much?
It looks like the counterweights may swing further out than the conn-rods.

Neither swing out as far as the oil pump. If this question hasnt been answered by the next time I have the oil pan off my 2.5 I'll measure it for you. That damn oil pump is the devil for for fitment with a wet sump pan. I ended up moving my rack forward, using a tubular subframe, and was able to get away with the miata pan and having the 10° tilt the motor has in the miata. The tilt did have the nice benefit of making the miata intake fit better, and getting enough room to fit a 3.5" downpipe if I felt like it.

**Durescort** · 08-06-2016, 19:24

Originally Posted by Leafy

Neither swing out as far as the oil pump. If this question hasnt been answered by the next time I have the oil pan off my 2.5 I'll measure it for you. That damn oil pump is the devil for for fitment with a wet sump pan. I ended up moving my rack forward, using a tubular subframe, and was able to get away with the miata pan and having the 10° tilt the motor has in the miata. The tilt did have the nice benefit of making the miata intake fit better, and getting enough room to fit a 3.5" downpipe if I felt like it.

Thanks for that, but the oil pump is not the issue, I clear that OK.
It is the lowest swept arc or radius of the rotating bits of the crank I was after to make sure the windage tray doesn't foul.