SonOfSand Posted August 22, 2009 Report Share Posted August 22, 2009 Hey Guys, I just got my new crank, ported cylinders, and case back from HJR. Is there anything I should lookout for, or be aware of when reassembling the cases? I have read the section in the Clymer manual, but wanted to ask the guys who do this all the time. Thanks. Quote Link to comment Share on other sites More sharing options...
SonOfSand Posted August 28, 2009 Author Report Share Posted August 28, 2009 Quick question guys, I just installed my cylinders, and used a little permatex ultimate grey on top of the base gasket. Do I need to let the engine sit for 24 hours before I can ride it? Thanks. Quote Link to comment Share on other sites More sharing options...
00tbanshee Posted August 28, 2009 Report Share Posted August 28, 2009 some are goiong to say yes, but i have started right after i torgued the head studs and was fine Quote Link to comment Share on other sites More sharing options...
slopoke Posted August 29, 2009 Report Share Posted August 29, 2009 some are goiong to say yes, but i have started right after i torgued the head studs and was fine you wil be fine Quote Link to comment Share on other sites More sharing options...
bansheeseat$$ Posted August 29, 2009 Report Share Posted August 29, 2009 Pay attention while you are assymbling it and do a engine leak down test when it is together. Quote Link to comment Share on other sites More sharing options...
slopoke Posted August 29, 2009 Report Share Posted August 29, 2009 Pay attention while you are assymbling it and do a engine leak down test when it is together. GREAT advise. I learned the hard and costly way. Quote Link to comment Share on other sites More sharing options...
SonOfSand Posted August 29, 2009 Author Report Share Posted August 29, 2009 GREAT advise. I learned the hard and costly way. Thanks guys, why is the leakdown so important? If I have an airleak, wont it show up in the idle? Also, just started it and found out I am leaking coolant from my noss cool head, is there a good place to get the O-rings for cheap? Quote Link to comment Share on other sites More sharing options...
slopoke Posted August 29, 2009 Report Share Posted August 29, 2009 No it wont for sure. A small leak may not be noticable at idle but fatal at WOT. Its your bike do as you want but I leak test everytime I break it down. Quote Link to comment Share on other sites More sharing options...
Titan up Posted August 29, 2009 Report Share Posted August 29, 2009 Thanks guys, why is the leakdown so important? If I have an airleak, wont it show up in the idle? Also, just started it and found out I am leaking coolant from my noss cool head, is there a good place to get the O-rings for cheap? There's a ton of places that sell the o-ring kits. Try to purchase local or from somewhere in your region, so you don't have to wait more than 1-2 days. I also torque the cool heads down to 22ft lbs too. I've had mine dribble coolant at 20ft lbs. Quote Link to comment Share on other sites More sharing options...
pr0blumz Posted August 29, 2009 Report Share Posted August 29, 2009 Thanks guys, why is the leakdown so important? If I have an airleak, wont it show up in the idle? Unless you want to do a back-to-back rebuild , I would suggest you do a leakdown test. Learning the hard way isn't fun! Quote Link to comment Share on other sites More sharing options...
dajogejr Posted August 29, 2009 Report Share Posted August 29, 2009 100X yes on the leak down test. I bought a leak down tester from RB Porting in MI. I've sold several of them for him to members. I've saved a few motors already by letting buddies borrow it. It could show at idle, it could do real funny things at high RPMs (not where you want to diagnose a problem). You can make your own or spend 50 bucks for the one I got. Three basic things every motor should have done before they are ever fired: Leak down test first Squish test next Compression test cold. If any of those are off, you just saved yourself a lot of headaches and more so money! Quote Link to comment Share on other sites More sharing options...
SonOfSand Posted August 29, 2009 Author Report Share Posted August 29, 2009 I wanted to thank everyone for their input, I didn't understand the importance of a leak down test, now I do. I will do it before I ride. Thanks. Quote Link to comment Share on other sites More sharing options...
bansheeseat$$ Posted August 29, 2009 Report Share Posted August 29, 2009 I wanted to thank everyone for their input, I didn't understand the importance of a leak down test, now I do. I will do it before I ride. Thanks. It's great to have someone actually listen to others input and grasp the importance of some things,For that I salute you and it may save you abit of money also.Not sure if you already installed the clutch cover and installed the stator and flywheel but Every one I build for myself or customers I leave that stuff off when I do the leak down test it makes it alot easier to check the crank seals and drive gear key for leaks as well. Quote Link to comment Share on other sites More sharing options...
SonOfSand Posted August 30, 2009 Author Report Share Posted August 30, 2009 Hey guys, will pro design o-rings work on a noss cool head? Quote Link to comment Share on other sites More sharing options...
Titan up Posted August 30, 2009 Report Share Posted August 30, 2009 Hey guys, will pro design o-rings work on a noss cool head? They sure will. Quote Link to comment Share on other sites More sharing options...
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