an RX8er's rebuild thread
05-26-2012, 12:29 AM
#751
ok, just doubled the miles on the car. I think I am up to 60ish and a 1/2 a tank of gas left....ugh...cant wait to get rid of this gas.
I am also a bit hesitant to put the nose, undertray and wheel well liners until I figure this starting thing out.
I am also a bit hesitant to put the nose, undertray and wheel well liners until I figure this starting thing out.
05-26-2012, 07:59 AM
#752
if you have 60 miles on it and it is still not cranking---more miles is not going to change anything.
Time to put a good load on the engine?
what are the vacuum readings?
Its not the trans or anything to do with the trans.
Its not the gas.
Does it act likes it wants to start?
double check the purge valve--it may be a factor.
The purge valve has the ability to cause difficult starting by loading the intake with gas fumes from the tank.
Just for kicks --just unplug the purge and see if it will crank.
Time to put a good load on the engine?
what are the vacuum readings?
Its not the trans or anything to do with the trans.
Its not the gas.
Does it act likes it wants to start?
double check the purge valve--it may be a factor.
The purge valve has the ability to cause difficult starting by loading the intake with gas fumes from the tank.
Just for kicks --just unplug the purge and see if it will crank.
05-26-2012, 08:18 AM
#753
if you have 60 miles on it and it is still not cranking---more miles is not going to change anything.
Time to put a good load on the engine?
what are the vacuum readings?
Its not the trans or anything to do with the trans.
Its not the gas.
Does it act likes it wants to start?
double check the purge valve--it may be a factor.
The purge valve has the ability to cause difficult starting by loading the intake with gas fumes from the tank.
Just for kicks --just unplug the purge and see if it will crank.
Time to put a good load on the engine?
what are the vacuum readings?
Its not the trans or anything to do with the trans.
Its not the gas.
Does it act likes it wants to start?
double check the purge valve--it may be a factor.
The purge valve has the ability to cause difficult starting by loading the intake with gas fumes from the tank.
Just for kicks --just unplug the purge and see if it will crank.
I can check the purge
it sounds like it wants to but its not quite there. would adding 2-cycle oil or I guess AT Fluid like someone else mentioned?
05-26-2012, 01:52 PM
#762
yea --putting a load on it means giving it a good bit of throttle. Of course have the rpms up too. Dont give it a lot of throttle below 3K rpm.
Like RG/myself was speaking off earlier.
Try the purge valve thing first---just unplug the connector. ( OOPS JUST SAW ADDITIONAL POSTS __CHARLES METHOD IS BETTER)
If that doesnt help--just pull the leading plugs and squirt some ATF into each rotor face. It will smoke to high heaven but if it is compression related then that will help.
Now IF it cranks after the atf-that doesnt mean it has low compression from a bad build--it just means that the compression is not there yet and continual driving could increase the sealing as it wears in.
x fingers.
Like RG/myself was speaking off earlier.
Try the purge valve thing first---just unplug the connector. ( OOPS JUST SAW ADDITIONAL POSTS __CHARLES METHOD IS BETTER)
If that doesnt help--just pull the leading plugs and squirt some ATF into each rotor face. It will smoke to high heaven but if it is compression related then that will help.
Now IF it cranks after the atf-that doesnt mean it has low compression from a bad build--it just means that the compression is not there yet and continual driving could increase the sealing as it wears in.
x fingers.
Last edited by olddragger; 05-26-2012 at 01:55 PM.
05-26-2012, 07:22 PM
#763
well shady came out today and after a little bit of tinkering the son of a bitch started. all shady did was cycle the alarm but it was a 1 time thing....lmao
I went ahead and drove some more, got a new battery and it just wont do it. but damnit it is soooooooooo close. guess I will go get some ATF.
I went ahead and drove some more, got a new battery and it just wont do it. but damnit it is soooooooooo close. guess I will go get some ATF.
05-26-2012, 09:43 PM
#765
well after injecting some 2-cycle oil in the service port it fires up like a champ. I hope that doesnt mean something is jacked up....professionals?
just put another 30miles on it. it is just soooo freaking close to starting on its own
just put another 30miles on it. it is just soooo freaking close to starting on its own
05-26-2012, 11:15 PM
#766
My guess is compression.. It has happen before to some of our engines we just drive it like normal ( you dont want to know whats normal is for us ) we push started a few times then is good to go from their on . But Most of the time we just add oil to rotOrs and fires right up.. Try it let it sit for a day , oil the rotors , check battery is full , clean spark plugs, and it should start up and smoke out and then you will know for sure is just compression and your seals haven't seals right, needs a good drive.( speed aka Rpms ) just my little experience around roTories
05-27-2012, 12:59 AM
#769
I didn't get a chance to put the vacuum gauge on during startup though. It seems to just be a starting issue, I think it has to do with all the new parts but cannot be for certain.
05-27-2012, 07:36 AM
#770
yea that is kind of where I am at hoping everything is new and has just not finished seating.
I am not sure that even after 100 miles this is a "bad thing" but it certainly leaves a room for concern.
going to get some fresh gas today, then going for a cruise. hell maybe I will just carry around 2-cycle oil and inject it to the service ports each time I need to start up if I cant park on a hill
I am not sure that even after 100 miles this is a "bad thing" but it certainly leaves a room for concern.
going to get some fresh gas today, then going for a cruise. hell maybe I will just carry around 2-cycle oil and inject it to the service ports each time I need to start up if I cant park on a hill
05-27-2012, 09:30 AM
#773
glad that worked.
14 of vacuum is low for a fresh engine--but more miles/heat cycles and increasing load may do the trick.
It may not... but to early to tell.
You are ported but no change in the timing of the ports so that doesnt really affect anything.
At least now you know what you are dealing with.
If it was me--i would take it out and do a couple full throttle runs in 2nd and 3nd gears with a redline of 7.5rpms. If it doesnt seal after a few of those--then there is a problem and a compression check will be needed. I dont like how it cranked so well to begin with then died. If it wasnt starting from the beginning........
It may be wise to premix at 1 oz to the gallon to start with--just a hunch on my part.
Xing fingers for you man.
14 of vacuum is low for a fresh engine--but more miles/heat cycles and increasing load may do the trick.
It may not... but to early to tell.
You are ported but no change in the timing of the ports so that doesnt really affect anything.
At least now you know what you are dealing with.
If it was me--i would take it out and do a couple full throttle runs in 2nd and 3nd gears with a redline of 7.5rpms. If it doesnt seal after a few of those--then there is a problem and a compression check will be needed. I dont like how it cranked so well to begin with then died. If it wasnt starting from the beginning........
It may be wise to premix at 1 oz to the gallon to start with--just a hunch on my part.
Xing fingers for you man.
05-27-2012, 09:40 AM
#774
but his is already assembled
glad that worked.
14 of vacuum is low for a fresh engine--but more miles/heat cycles and increasing load may do the trick.
It may not... but to early to tell.
You are ported but no change in the timing of the ports so that doesnt really affect anything.
At least now you know what you are dealing with.
If it was me--i would take it out and do a couple full throttle runs in 2nd and 3nd gears with a redline of 7.5rpms. If it doesnt seal after a few of those--then there is a problem and a compression check will be needed. I dont like how it cranked so well to begin with then died. If it wasnt starting from the beginning........
It may be wise to premix at 1 oz to the gallon to start with--just a hunch on my part.
Xing fingers for you man.
14 of vacuum is low for a fresh engine--but more miles/heat cycles and increasing load may do the trick.
It may not... but to early to tell.
You are ported but no change in the timing of the ports so that doesnt really affect anything.
At least now you know what you are dealing with.
If it was me--i would take it out and do a couple full throttle runs in 2nd and 3nd gears with a redline of 7.5rpms. If it doesnt seal after a few of those--then there is a problem and a compression check will be needed. I dont like how it cranked so well to begin with then died. If it wasnt starting from the beginning........
It may be wise to premix at 1 oz to the gallon to start with--just a hunch on my part.
Xing fingers for you man.