I got a 92 accord ex 5 speed. I did an egr port job this weekend and i need to clean Intake Manifold below those 4 holes. Can this be done by removing Plenum. Am assuming i can fit my little vacuum hose down there and suck all that crap up.
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Can i clean Intake manifold by removing Plenum?
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If you remove the plenum and butterfly plate, you will have reasonable access to the runners to stick a vacuum hose in there. Keep in mind that any cleaners you spray in there will tend to accumulate on top of the intake valves and drop into the cylinders when you start the engine. From my experience, the runners tend to be the dirtiest where they meet the head. If you really want it clean, remove the entire manifold.90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums
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Originally posted by fleetw00d View PostIf you remove the plenum and butterfly plate, you will have reasonable access to the runners to stick a vacuum hose in there. Keep in mind that any cleaners you spray in there will tend to accumulate on top of the intake valves and drop into the cylinders when you start the engine. From my experience, the runners tend to be the dirtiest where they meet the head. If you really want it clean, remove the entire manifold.
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Originally posted by fleetw00d View PostIf you remove the plenum and butterfly plate, you will have reasonable access to the runners to stick a vacuum hose in there. Keep in mind that any cleaners you spray in there will tend to accumulate on top of the intake valves and drop into the cylinders when you start the engine. From my experience, the runners tend to be the dirtiest where they meet the head. If you really want it clean, remove the entire manifold.
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IDK if this helps or not but I once pulled a whole A6 IM completely from the top, granted it was not fun yanking the runners + unbolting them from the angle brace but I got it done. It's hard to say where the plug rolled off too but I do know that it will stay in the EGR tract and not go anywhere else. Stupid question but have to ask, you only drilled through the first/top layer of aluminum right? You didn't drill right through into the 4 runners themselves right? I guess just make sure you do a wicked thorough job cleaning up ALL the metal chips and make sure the 1/8" holes are all clear where the exhaust gas enters the 4 runners. Oh and make sure your plugs aren't going down so far that they block the tract, in a way try to copy what the original brass ones did
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Originally posted by Granite CB7 View PostIDK if this helps or not but I once pulled a whole A6 IM completely from the top, granted it was not fun yanking the runners + unbolting them from the angle brace but I got it done. It's hard to say where the plug rolled off too but I do know that it will stay in the EGR tract and not go anywhere else. Stupid question but have to ask, you only drilled through the first/top layer of aluminum right? You didn't drill right through into the 4 runners themselves right? I guess just make sure you do a wicked thorough job cleaning up ALL the metal chips and make sure the 1/8" holes are all clear where the exhaust gas enters the 4 runners. Oh and make sure your plugs aren't going down so far that they block the tract, in a way try to copy what the original brass ones did
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You should be able to leave the throttle body on the plenum. I think the coolant hoses running to the throttle body and IACV and FITV on the plenum may be flexible enough to allow you to lift the plenum enough to get your small vacuum hose into the runners.90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums
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Originally posted by fleetw00d View PostYou should be able to leave the throttle body on the plenum. I think the coolant hoses running to the throttle body and IACV and FITV on the plenum may be flexible enough to allow you to lift the plenum enough to get your small vacuum hose into the runners.
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I recommend replacing any gasket or seal you disturb. Reusing them is asking for a vacuum leak. If the hoses are still original it is also a good idea to replace those while you have it apart. Include the horseshoe shaped bypass hose - I had this one split on me one the road once - I was lucky and able to cut the bad end off and reinstall it to get me home.90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums
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Originally posted by fleetw00d View PostI recommend replacing any gasket or seal you disturb. Reusing them is asking for a vacuum leak. If the hoses are still original it is also a good idea to replace those while you have it apart. Include the horseshoe shaped bypass hose - I had this one split on me one the road once - I was lucky and able to cut the bad end off and reinstall it to get me home.
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Yes, they are the same part number. Great resource for OEM parts (even just to verify what parts are interchangeable) is www.hondaautomotiveparts.com90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums
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Originally posted by fleetw00d View PostYes, they are the same part number. Great resource for OEM parts (even just to verify what parts are interchangeable) is www.hondaautomotiveparts.comLast edited by zedjr10; 05-17-2017, 11:34 PM.
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Sometimes they had two different suppliers for various parts. For those two, you could probably take a chance on reusing them since they aren't rubber and get significantly compressed upon installation (like the valve cover gasket). Worst case is you have to take it apart again. You could also put a very thin layer of gasket sealer on both sides, but that may make it messy if you ever have to take it apart again.90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums
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