Serious help needed!
#441
Burning Brakes
Thread Starter
Looks Good! Make sure you give it a thorough clean down. Hopefully it won't have an oil leak, but a clean engine makes finding leaks easier.
Also, there's a coolant temperature sensor that's different between the Auto and the Manual engines. I'm not sure if you swapped that yet, but it's near the cam gears I think.
Also, there's a coolant temperature sensor that's different between the Auto and the Manual engines. I'm not sure if you swapped that yet, but it's near the cam gears I think.
#442
Burning Brakes
Thread Starter
Question, this harness that I am pointing to doesn't exist on the j32a2 engine, do I just let it hang here? Not sure exactly what it does but it looks like it goes somewhere behind the cam gear but it didn't have anything to do with the cam gear sensors as I remembered when I swapped them.
#443
Suzuka Master
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The only 'Thermo' sensor I could find '...near the cam gears...' is shown as #10; 37773-P8E-A01 on the link below; however, it is a shared part # between the CL-S6 manual J32 and the MDX auto J35.
https://www.oemacuraparts.com/auto-p...er-head-1-scat
https://www.oemacuraparts.com/auto-p...k-oil-pan-scat
#444
Suzuka Master
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Question, this harness that I am pointing to doesn't exist on the j32a2 engine, do I just let it hang here? Not sure exactly what it does but it looks like it goes somewhere behind the cam gear but it didn't have anything to do with the cam gear sensors as I remembered when I swapped them.
#445
Burning Brakes
Thread Starter
Found it! That harness that I'm holding in the previous pic screws in the head where that freeze plug is at on the j32a2. Now I remember, that's why I left that harness on the j35 because what's the difference from keeping that there or putting a freeze plug there. So the pic below is from the j32a2
Last edited by 2ndgentl; 10-28-2017 at 07:03 PM.
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zeta (10-28-2017)
#446
Unregistered Member
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Question, this harness that I am pointing to doesn't exist on the j32a2 engine, do I just let it hang here? Not sure exactly what it does but it looks like it goes somewhere behind the cam gear but it didn't have anything to do with the cam gear sensors as I remembered when I swapped them.
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zeta (10-28-2017)
#448
Burning Brakes
Thread Starter
Good, so just leaving the coolant temp sensor in the J35 (with that harness dangling) instead of just blocking it off is also fine. Which that is what I did. Would of looked cleaner if I just blocked it off using the block off plate from j32a2 but no big deal, I can hide that little harness
#449
Suzuka Master
iTrader: (1)
I searched 'high and low' in the PDF Helms for #8; 'Thermo Switch' and could not find it anywhere. Talking about a wild goose chase, Acura. Would you know the proper name for it in the Helms by any chance?
6-speed:
https://www.oemacuraparts.com/auto-p...nder-head-scat
Auto:
https://www.oemacuraparts.com/auto-p...nder-head-scat
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TheMightyQuinn (10-30-2017)
#451
Suzuka Master
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Nice!
That's not your 3.7 IM?
That's not your 3.7 IM?
Last edited by zeta; 10-28-2017 at 09:08 PM.
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teh CL (10-28-2017)
#452
Burning Brakes
Thread Starter
#453
Suzuka Master
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teh CL (10-28-2017)
#455
I see the spacer - is it there to increase the speed of the air (increasing the volume of the charge), and take more fuel with it? Or, is it something else?
Anyway, it looks like it's coming along, nicely!
Anyway, it looks like it's coming along, nicely!
#456
Burning Brakes
Thread Starter
Thanks Beak14! I believe the spacer adds a little more bottom end but you lose some top end. The P2R spacer which I believe is about 3/4" thick might perform different than the last spacer I had on which was from a Ridgeline at about 1 3/4" thick. I have a lot of parts I can play around with, but putting it on the dyno will only tell me exactly how they perform.
#457
Suzuka Master
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Found it! That harness that I'm holding in the previous pic screws in the head where that freeze plug is at on the j32a2. Now I remember, that's why I left that harness on the j35 because what's the difference from keeping that there or putting a freeze plug there. So the pic below is from the j32a2
O.K; 2ndgentl, for posterity's sake I'm going to document this here because until Karanx7 mentioned it, I can't recall ever having seen it specifically discussed on any of the other recent 'swap' threads, so here goes.
The 'sensor' name that would normally occupy that 'block-off plate' is called 'Radiator Fan Switch B' per the Helms. As Karanx7 stated it is on the auto '02 MDX J35 and auto '03 CL-S' J32 and excluded on the CL-S 6-speed J32 as your excellent picture depicts above.
If one takes the J32 CL-S6 heads, in mass, and transfer's them to the J35, then the issue of that 'extra' harness would not be noticed, because obviously the sensor is not on the CL-S6 front head.
If one only takes the CL-S6 cams and supporting nomenclature and transfers them TO the J35 heads then the presence of that 'extra' harness would present itself on the J35, (possibly turning into a WTF moment) as it did during your Type-S J32 cam swap process. I only say that (a WTF moment) because no one putting in all that work for a 'swap' wants to have some unknown extra harness flopping around potentially confusing things, at least I would not.
P.S.
I stumbled upon the Mugen T-stat/fan switch part #'s while researching the above:
THERMOSTAT 19301-XGMR-0000
FAN SWITCH 37760-XK5-00N0
RADIATOR CAP 19045-XGER-0000
Last edited by zeta; 10-29-2017 at 07:56 AM.
#458
Unregistered Member
iTrader: (2)
Acura screwed up on that "Radiator Fan Switch B" diagram for the 03-CLS6 engine. It just shows the fan switch, but doesn't provide a part number for the "freeze plug." Not a big deal, but it's a bit strange since Acura's diagrams have usually been flawless.
I guess it's considered part of the cylinder head.
I guess it's considered part of the cylinder head.
Last edited by Karanx7; 10-29-2017 at 03:12 PM.
#459
Suzuka Master
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Acura screwed up on that "Radiator Fan Switch B" diagram for the 03-CLS6 engine. It just shows the fan switch, but doesn't provide a part number for the "freeze plug." Not a big deal, but it's a bit strange since Acura's diagrams have usually been flawless.
I guess it's considered part of the cylinder head.
I guess it's considered part of the cylinder head.
I referred to my hard copy of the helms, because I didn't want to look at a computer screen all day, and thought 'the dam thing has to be here somewhere because it is on the Auto CL'.
Started paging through and the first place it shows up is in the Engine Cooling; subsection Fan Controls; Radiator Fan Switch Replacement; pg 10-32. Go figure.
Last edited by zeta; 10-29-2017 at 03:36 PM.
#460
Burning Brakes
Thread Starter
Got her in with the tranny attached. Honesty, went in easier than I thought. Still have to attach the wiring harness on all the sensors, ect. Also I need to siphon out all the fuel from the tank and lines. Been 9 months since last used.
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teh CL (10-30-2017)
#462
Burning Brakes
Thread Starter
As far as the S\C, I am curious to see how this j35a3 compares to my j32a2 all motor first, and I am planning on keeping it N\A for the time being until I feel confident enough to move forward with the S\C. Definitely putting the S/C back on again sooner than later, but just want to make sure everything is perfect this time.
Last edited by 2ndgentl; 10-30-2017 at 10:23 PM.
#463
Burning Brakes
Thread Starter
So I'm really close to firing up this engine. Question, what kind of spark plugs would you guys recommend I use on the J35A3? I'm getting really nervous on firing up this engine, I just hope it purrs like a kitten.
#464
Suzuka Master
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2002 ACURA MDX 3.5L V6 Spark Plug | RockAuto
#465
Burning Brakes
Thread Starter
Thanks Zeta, I also put the stock injectors from the j32a2 on the j35a3 assuming they are the same. I also just noticed I am missing the coolant hose that connects on the top of the radiator which is probably on that coolant housing that I am missing. Oh well, I'll have to get one today as well with those spark plugs. I'm going to stick with NGK
#466
Suzuka Master
iTrader: (1)
Thanks Zeta, I also put the stock injectors from the j32a2 on the j35a3 assuming they are the same. I also just noticed I am missing the coolant hose that connects on the top of the radiator which is probably on that coolant housing that I am missing. Oh well, I'll have to get one today as well with those spark plugs. I'm going to stick with NGK
Hopefully you can find the spark plugs you need locally. You changed the oil and filter as well?
#467
Burning Brakes
Thread Starter
Actually I haven't change the oil and filter just yet. There was maybe a quart in the oil pan when I purchased the engine, and it didn't look bad so I just added the rest just to fire up the engine and hear how it sounds. Once I fire it up and make sure everything is okay the first thing I'll do is change the oil and filter. Unless you think otherwise.
#468
Suzuka Master
iTrader: (1)
Did the paper work that came with the engine from the salvage yard give any indication as to how long the motor sat around?
If not, then it might be prudent to do a quick oil and filter change. I don't know what to tell you. Even some cheap new oil/filter from Walmart is better to play it safe. You've gotten this far and I can see that you are anxious to finally get your engine going and such, it's your call. I don't want to spend your money indiscriminately, he he.
If not, then it might be prudent to do a quick oil and filter change. I don't know what to tell you. Even some cheap new oil/filter from Walmart is better to play it safe. You've gotten this far and I can see that you are anxious to finally get your engine going and such, it's your call. I don't want to spend your money indiscriminately, he he.
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teh CL (11-01-2017)
#469
Burning Brakes
Thread Starter
Did the paper work that came with the engine from the salvage yard give any indication as to how long the motor sat around?
If not, then it might be prudent to do a quick oil and filter change. I don't know what to tell you. Even some cheap new oil/filter from Walmart is better to play it safe. You've gotten this far and I can see that you are anxious to finally get your engine going and such, it's your call. I don't want to spend your money indiscriminately, he he.
If not, then it might be prudent to do a quick oil and filter change. I don't know what to tell you. Even some cheap new oil/filter from Walmart is better to play it safe. You've gotten this far and I can see that you are anxious to finally get your engine going and such, it's your call. I don't want to spend your money indiscriminately, he he.
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zeta (11-01-2017)
#471
Suzuka Master
iTrader: (1)
I don't think I've ever read if the J32 ones have any advantage over other coil packs as far as performance goes; however, I've been wrong before, lol.
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zeta (11-02-2017)
#473
Burning Brakes
Thread Starter
Ugh....ok, fired it up and won't idle. If I keep the throttle down a little bit it stays running and sounds fine, but once I take my foot off the pedal it sounds kinda like a Subaru as it tries to idle then dies. No check engine lights on (yet). Not sure what to think of just yet. I can't find a vacuum line diagram anywhere just to make sure I hooked them all up right. I tried siphoning the tank yesterday and honestly, the gas still looked and smelled good for sitting for 9 months, but I took as much as I could get out of there. I think there might have been a little less than a gallon still in the tank, but I just put in 3 gallons of fresh 93 octane. But I know there's still the last of the old fuel still in the lines, but I don't think it's the fuel. Sounded really good when I revved it a few times, but dies as soon as you let off the throttle. I can't imagine it having something to do with the j35a3 coils, but I can try swapping them out
#474
Suzuka Master
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Just throwing a couple things out there to check:
Could the thin metal upper intake manifold gasket be flipped? The little 'tab' that protrudes from the 'round' area toward the throttle body should be located toward the 'rear' or firewall side.
Take a look at the Map Sensor and Throttle Position Sensor connections on the throttle body. They both share a confusing 'round' type connector that could be switched. I believe the TPS harness connector is 'grey'.
Could the thin metal upper intake manifold gasket be flipped? The little 'tab' that protrudes from the 'round' area toward the throttle body should be located toward the 'rear' or firewall side.
Take a look at the Map Sensor and Throttle Position Sensor connections on the throttle body. They both share a confusing 'round' type connector that could be switched. I believe the TPS harness connector is 'grey'.
Last edited by zeta; 11-01-2017 at 08:44 PM.
#476
Unregistered Member
iTrader: (2)
It sounds like the IACV is unplugged or clogged, so this is a good call. If the engine is running strong while giving it throttle, then your idle problem is limited to the IACV.
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zeta (11-01-2017)
#477
Burning Brakes
Thread Starter
I've checked all connections at least a couple dozen times and everything is exactly where it should be. I'll check that metal gasket tomorrow morning just in case, but pretty sure it's fine. I still have that big red fuel pressure regulator hooked up, but I believe it's set around stock psi so I doubt it's that. I swapped out the coils to the j32a2 and it made no difference. The only way I got it to idle with some surging going on was to disconnect some vacuum lines from the IM. That is why I think and hope I just have some lines mixed up, but take a look at these new plugs already with only 5 min of run time. Also, when I swapped the j32a2 cams to the j35a3 I also swapped the j32a2 roller rockers as well which bolt right over the cams. Not sure if I had to.
Also, on the next pic does anyone know what hose connects to that big nipple with the red cap on it? I only capped it for the pic
Also, on the next pic does anyone know what hose connects to that big nipple with the red cap on it? I only capped it for the pic
#478
Burning Brakes
Thread Starter
Thanks Karanx7, I'll end up swapping the coils tomorrow to the j32a2 ones. These are the spark plugs I went with. They are for the j35a3
#479
Suzuka Master
iTrader: (1)
2ndgentl, I just checked my car and the hose coming off the 'Air assist valve assembly,' red capped inlet/outlet, goes to one of the two 'nips' on the inflow elbow to the throttle body.
#480
Suzuka Master
iTrader: (1)
I should of said one of the two ports on the air inflow elbow coming from the CT Ice box connecting to the throttle body. The other port would take a hose coming from the front valve cover for crankcase ventilation near the EGR.