rzresurrection Posted August 30, 2015 Report Share Posted August 30, 2015 The pressure test is to make sure you don't have any air leaks anywhere else - I don't get the feeling that the OP has ever leak down tested the engine. I didn't mean it as a test for the cooling system, just as an overall precaution afterwards Quote Link to comment Share on other sites More sharing options...
Zillaguy Posted August 30, 2015 Report Share Posted August 30, 2015 The pressure test is to make sure you don't have any air leaks anywhere else - I don't get the feeling that the OP has ever leak down tested the engine. I didn't mean it as a test for the cooling system, just as an overall precaution afterwardsRegistered User is on the rag again, don't pay attention to her. 1 Quote Link to comment Share on other sites More sharing options...
rzresurrection Posted August 30, 2015 Report Share Posted August 30, 2015 Registered User is on the rag again, don't pay attention to her.No problem. I know my way around these engines well enough. I don't know everything, but always willing to learn more. Quote Link to comment Share on other sites More sharing options...
registered user Posted August 30, 2015 Report Share Posted August 30, 2015 why is it everyone proclaims how they know their way around these engines but then go and pump up the crankcase to find a cooling system problem 6psi most likely wont be enough to detect a leak in the cooling section, thats if you werent too stupid to leave the piston above the ports, like i said before. if there is some kind of leak then chances are you wont know if its in the head, crank seals, reed area or mating surfaces of the crankcase. by pressuring the system at the radiator youve isolated the test to only the cooling system, as thats where your trying to test for leaks. FFS pump it to 15psi and wait a minute or so. if theres no drop your good. if it drops youll either see evidence on the exterior somewhere, otherwise it will be on the interior which meens the inner oring. pull the head and replace orings. DONE this is just common sense shit a kid could understand Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 30, 2015 Report Share Posted August 30, 2015 why is it everyone proclaims how they know their way around these engines but then go and pump up the crankcase to find a cooling system problem 6psi most likely wont be enough to detect a leak in the cooling section, thats if you werent too stupid to leave the piston above the ports, like i said before. if there is some kind of leak then chances are you wont know if its in the head, crank seals, reed area or mating surfaces of the crankcase. by pressuring the system at the radiator youve isolated the test to only the cooling system, as thats where your trying to test for leaks. FFS pump it to 15psi and wait a minute or so. if theres no drop your good. if it drops youll either see evidence on the exterior somewhere, otherwise it will be on the interior which meens the inner oring. pull the head and replace orings. DONE this is just common sense shit a kid could understand But what about the leak down BRO! Quote Link to comment Share on other sites More sharing options...
rzresurrection Posted August 30, 2015 Report Share Posted August 30, 2015 why is it everyone proclaims how they know their way around these engines but then go and pump up the crankcase to find a cooling system problem 6psi most likely wont be enough to detect a leak in the cooling section, thats if you werent too stupid to leave the piston above the ports, like i said before. if there is some kind of leak then chances are you wont know if its in the head, crank seals, reed area or mating surfaces of the crankcase. by pressuring the system at the radiator youve isolated the test to only the cooling system, as thats where your trying to test for leaks. FFS pump it to 15psi and wait a minute or so. if theres no drop your good. if it drops youll either see evidence on the exterior somewhere, otherwise it will be on the interior which meens the inner oring. pull the head and replace orings. DONE this is just common sense shit a kid could understand Holy crap. Who ever talked about pumping up the case to find a COOLANT leak? Read the post first instead of going off half cocked about what you THINK you read. Let me say it again incase you you mis read this one more time. Do an effin leakdown test after you do anything - to verify there is not an air leak anywhere. THIS IS NOT TO CHECK THE COOLANT SYSTEM fora leak. FFS Quote Link to comment Share on other sites More sharing options...
Ron Burgandy Posted August 30, 2015 Author Report Share Posted August 30, 2015 Took off the head. Inspected everything. Hard to tell but don't see any corrosion marks indicating leaking. Cleaned the heck out of the coolhead and Ordering oring set and put it back together and hopefully that fixes it. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted August 30, 2015 Report Share Posted August 30, 2015 Took off the head. Inspected everything. Hard to tell but don't see any corrosion marks indicating leaking. Cleaned the heck out of the coolhead and Ordering oring set and put it back together and hopefully that fixes it. Sent from my iPhone using Tapatalk Ha! All this is just does what he wants. You can lead a horse to water. Quote Link to comment Share on other sites More sharing options...
Ron Burgandy Posted August 31, 2015 Author Report Share Posted August 31, 2015 Ha! All this is just does what he wants. You can lead a horse to water. So you have a answer? One thing at a time or should I do everything all at once? Mulitiple people said it could be a faulty oring so.... Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted August 31, 2015 Report Share Posted August 31, 2015 So you have a answer? One thing at a time or should I do everything all at once? Mulitiple people said it could be a faulty oring so.... Sent from my iPhone using Tapatalk You should have done a leak down. Then pressure test the coolant system. I don't just throw parts at things anymore. It's more labor and money that sometimes isn't needed. As much shit as RU gets he was right in saying test the cooling side. A good tester will also be able to check the cap. Quote Link to comment Share on other sites More sharing options...
Ron Burgandy Posted August 31, 2015 Author Report Share Posted August 31, 2015 Just to be clear an air leak will cause my motor to overheat within 10 minutes of hard riding and not perform any differently? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 31, 2015 Report Share Posted August 31, 2015 Just to be clear an air leak will cause my motor to overheat within 10 minutes of hard riding and not perform any differently? Sent from my iPhone using Tapatalk Yep, possibly a melt down. Quote Link to comment Share on other sites More sharing options...
registered user Posted September 1, 2015 Report Share Posted September 1, 2015 unless the engine is new and never ran, youll see it spooging gas from the suspect leak area along with dirt collecting. if the flywheel seal is leaking youll see gas sitting in the bottom of the stator housing when you pull the cover off. why over complicate a simple thing Quote Link to comment Share on other sites More sharing options...
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