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why do the apv's get so gunked up?
When I recently took my lim off(engine in the car lol) the apv's were really gunked up with oily/carbon residue. Is that blow back doing that, is it normal, it is side seals-- wtf???
On recip engines i know it would be the valves. My primarys and secondarys look really, really good. olddragger |
you have a catch can? even if you have a catch can, is it still routed back into the intake?
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yea have a catch can--no route back to the intake..
I have seen pics of other engines that have the same gunked up apv's. why just the apv's? olddragger |
The APV does get pretty gunked-up, but so does the SSV (at least the couple I've seen).
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Cause they are often closed...must be reversion carrying fuel/OMP residue in there and then it gets cooked to the walls
Funny thing is that my engine at 93K Km was really clean in the APV...likely from all the hot track time and the water cleaning I did every now and then |
well i do track........... and i have a water meth system.........................
guess i am not hot or wet enough? damn --did i say that?:) OD |
/\ yes you did - wash your mouth out
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Silly question here, would there be a need to clean the ssv and apv? I've always cleaned the throttle body (and plenum chamber) on all the cars l've had, keeps the car running smoothly l believe.
EDIT: Anyone want to do a DIY if there is??? :) |
Originally Posted by 2SeeKU
(Post 3149895)
would there be a need to clean the ssv and apv
I've seen this occur on the SSV valve.
Originally Posted by 2SeeKU
(Post 3149895)
Anyone want to do a DIY if there is??? :)
The APV is a different story, OD managed to get the APV valves out without removing the intake manifold or engine, but it required a lot of work (and patience) and I probably wouldn't recommend this as a DIY for the basic user. Might be easier to just remove the intake manifold to reach the APV valves. |
Uh --i think you meant that i gotr the lim off(and the apvs) without pulling the engine. And yep--it was work. If you dont have a little experience-- dont try it. You have to know a LOT of cuss words.
OD |
Originally Posted by Jon316G
(Post 3149958)
If too much carbon/sludge builds-up, it can seize the valves.
I've seen this occur on the SSV valve. I thought about making one for the SSV since that can be removed without pulling the motor/intake manifold. The APV is a different story, OD managed to get the APV valves out without removing the intake manifold or engine, but it required a lot of work (and patience) and I probably wouldn't recommend this as a DIY for the basic user. Might be easier to just remove the intake manifold to reach the APV valves.
Originally Posted by olddragger
(Post 3150183)
Uh --i think you meant that i gotr the lim off(and the apvs) without pulling the engine. And yep--it was work. If you dont have a little experience-- dont try it. You have to know a LOT of cuss words.
OD |
this has been a problem with auxiliary ports since 1983.
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well if it hasnt been solved in 26 yrs--i probably wont do it this month.
OD |
I bet that is why they have an electric motor to move them also.
Bumped your old thread looking for a pic of your LIM :rolleyes: |
Originally Posted by arghx7
(Post 3150812)
this has been a problem with auxiliary ports since 1983.
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try this http://www.vimeo.com/7093611
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But thanks for linking my video anyway. |
5 Attachment(s)
Originally Posted by Nemesis8
(Post 3373989)
Bumped your old thread looking for a pic of your LIM :rolleyes:
Attachment 150008 Attachment 150009 Attachment 150010 Attachment 150011 Attachment 150012 |
^Dang thats nasty
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Originally Posted by Jon316G
(Post 3374574)
Are you referring to these pics?
Attachment 150008 Attachment 150009 Attachment 150010 Attachment 150011 Attachment 150012 |
Originally Posted by olddragger
(Post 3150183)
Uh --i think you meant that i gotr the lim off(and the apvs) without pulling the engine. And yep--it was work. If you dont have a little experience-- dont try it. You have to know a LOT of cuss words.
OD |
Originally Posted by MrVei
(Post 3861659)
wow, can the lim be broken down any then that?? do the tubes come out of the lim?
You can see a tiny 8mm bolt securing each one to the rack gear. Then you can remove the rack and pinion gear... but not much else other than that. |
Originally Posted by MrVei
(Post 3861662)
im taking this one sunday/monday, any tips that would save me some time would be great! did you have to lift on side of the motor to slid it out?
The motor will need to be pushed all the way towards the driver's side to a unbolt the LIM. Getting the tiny 8mm bolts, practically blinded, will be a PITA because the APV barrels need to be removed first. I'm sure OD can tell you more from his personal experience... but it'll be easier to just remove the whole motor. |
bad seals, bad seals
whatcha gonna do? whatcha gonna do when they fail on you? https://web.pa.msu.edu/people/nila/wavs/badboys.wav . |
if i had to do it over again---i would unhook the ppf/driveshaft/exhaust/gasline.motor mounts and with a lift just swig the engine forward enought to get it straight off.
You shouldnt have to move much wiring? Only needs to come forward about 6 inches or so. All renny street driven engines must have bad seals at some point. I have never seen a clean set of apv barrels on an engine with over 20K. OD |
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