# Heating Up New Pistons? **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [August 7, 2007, 11:46pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587 "2007-08-07T23:46:32Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![RPS13\_180SX](https://avatars.discourse-cdn.com/v4/letter/r/c77e96/32.png) [@RPS13\_180SX](https://forums.speedlife.net/u/RPS13_180SX)\ **Post date:** [August 7, 2007, 11:46pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/1 "2007-08-07T23:46:32Z")
Hey guys I just bought new JE pistons and eagle rods for my car and I heard that you have to heat up the pistons before you assemble them. I was wondering if this is necessary or true. Any info on assembling these would help. Thanks ---
**Author:** ![nismokutz](https://avatars.discourse-cdn.com/v4/letter/n/977dab/32.png) [@nismokutz](https://forums.speedlife.net/u/nismokutz)\ **Post date:** [August 8, 2007, 9:52am UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/2 "2007-08-08T09:52:37Z")
shouldn’t ur boss know at sub racing? ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [August 8, 2007, 12:40pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/3 "2007-08-08T12:40:27Z")
Ummm if you have to ask maybe you should be getting someone else to build you a motor. ---
**Author:** ![RPS13\_180SX](https://avatars.discourse-cdn.com/v4/letter/r/c77e96/32.png) [@RPS13\_180SX](https://forums.speedlife.net/u/RPS13_180SX)\ **Post date:** [August 8, 2007, 1:49pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/4 "2007-08-08T13:49:30Z")
well i just want to make sure… and everyone starts from somewhere… if someone knows something i dont im gonna ask till i know… ---
**Author:** ![Jason\_Lange](https://avatars.discourse-cdn.com/v4/letter/j/65b543/32.png) [@Jason\_Lange](https://forums.speedlife.net/u/Jason_Lange)\ **Post date:** [August 8, 2007, 8:34pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/5 "2007-08-08T20:34:15Z")
Well if you had machining done at a reputable shop and gave them the JE spec sheet you should be fine. Make sure to install the rings properly and fit them properly aswell. ---
**Author:** ![ohsoslo](https://avatars.discourse-cdn.com/v4/letter/o/cab0a1/32.png) [@ohsoslo](https://forums.speedlife.net/u/ohsoslo)\ **Post date:** [August 8, 2007, 9:48pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/6 "2007-08-08T21:48:06Z")
> [@RS13](#): > > Ummm if you have to ask maybe you should be getting someone else to build you a motor. agreed. if you want to start somewhere…ask if you can watch the process…they have to be heated to like 70-80 degrees celcius with a piston heater…this isn’t something you want to try yourself first time. ---
**Author:** ![Jason\_Lange](https://avatars.discourse-cdn.com/v4/letter/j/65b543/32.png) [@Jason\_Lange](https://forums.speedlife.net/u/Jason_Lange)\ **Post date:** [August 8, 2007, 11:05pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/7 "2007-08-08T23:05:40Z")
> [@Jason Lange](#): > > Well if you had machining done at a reputable shop and gave them the JE spec sheet you should be fine (they will have all the tools necesarry to check the clearances and heat your pistons). Make sure to install the rings properly and fit them properly aswell. ---
**Author:** ![ohsoslo](https://avatars.discourse-cdn.com/v4/letter/o/cab0a1/32.png) [@ohsoslo](https://forums.speedlife.net/u/ohsoslo)\ **Post date:** [August 9, 2007, 10:08am UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/8 "2007-08-09T10:08:26Z")
maybe i should have read the rest of the thread 😛 ---
**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\ **Post date:** [August 9, 2007, 3:14pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/9 "2007-08-09T15:14:39Z")
Any of the engines I took part in rebuilding didn’t involve heating the pistons up. The only thing that required heat to install was the con-rods, but they weren’t full floating rods and the rod to pin was what needed heat. Full floating you don’t need any heat as they are held together with snap rings. I don’t know if this is what you were referring to or not but I hope it helps. ---
**Author:** ![RPS13\_180SX](https://avatars.discourse-cdn.com/v4/letter/r/c77e96/32.png) [@RPS13\_180SX](https://forums.speedlife.net/u/RPS13_180SX)\ **Post date:** [August 9, 2007, 9:11pm UTC](https://forums.speedlife.net/t/heating-up-new-pistons/147587/10 "2007-08-09T21:11:10Z")
ya the rods i have are held in by rings… i read in the factory service that you had to heat them up to 70-80 but my journey tech at work said you only have to do that for certain types… im taking it all to my rebuild place and asking them