Under Plenum Work

[pabs324]

I'm planning on getting under the plenum very soon to replace my KS. Along the way I read that i should also do other work while I'm there. I have since bought PCV valve, both KS, EGR valve gasket, plenum gasket and throttle body gasket. I'm also planning on cleaning both the MAF and throttle body.

I want to also OHM all the injectors to see if I need to replace any.

What else should I buy to fully complete this job such as hoses or other parts? Where can I get a KS harness ?

[maxnix]

All hoses.

http://www.infinitipartsusa.com

All gaskets also.

[pabs324]

I understand but can someone be more specific as to which ones

[superuber]

There is a list of all you need somewhere-search-or call Joe, he will tell you anything you need to know and get you EVERY item you need. If you are doing the job do it right. When you call if Joe is not there leave a message or call back. No offense, but others there were not helpful, in fact they had no idea what was going on! And I deal with parts counters all day every day. Talk to Joe!

[maxnix]

Look for Wes' spreadsheet. it might even be inarticles. Slight differences between early and later VH45DE.

[qship96]

Why not order the complete under plenum kit from Joe at I.O.S., runs about $850-900.

[pabs324]

thanks guys. all roads lead to Joe. I'm goin to give him a call soon thanks again, and does he also sell the KS harness

[superuber]

Yes, he does. When I did my under plenum at 85K I also did KS's and harness. Tell Joe Wes sent ya! Boy, it's come to me telling folks what wes should! Darn that BM'er site!

[Haitian_King]

Why not order the complete under plenum kit from Joe at I.O.S., runs about $850-900.

The underplenum hose kit? $850? Whoa. I don't have the total figure here in front of me, but I paid a fraction of that price for the kit.

[maxnix]

Tell Joe Wes sent ya! Boy, it's come to me telling folks what wes should! Darn that BM'er site!

I bet he has to.

[qship96]

[QUOTE=Haitian_King]

The underplenum hose kit? $850? Whoa. I don't have the total figure here in front of me, but I paid a fraction of that price for the kit.

[/QUOTe

ULTI-HOSE Each $1,312.54 retail$984.44 your priceUltimate Engine Hose Kit - Q45 ('90-'93, w/o TCS) This is the ultimate engine hose kit for teh G50! Kit includes *under plenum air hoses**underplenum water hoses**EGR vent hoses**plenum gaskets**(2) knock sensors**knock sensor harness**injector harness**3 ft. of OEM fuel line**. It is truely everything you'll need to overhaul the engine of the Q45.

Here it is, slightly more than $850 for the 90-93 Q models-copied right off joes site for you.

[Haitian_King]

The underplenum hose kit? $850? Whoa. I don't have the total figure here in front of me, but I paid a fraction of that price for the kit.

[/QUOTe

ULTI-HOSE Each $1,312.54 retail$984.44 your priceUltimate Engine Hose Kit - Q45 ('90-'93, w/o TCS) This is the ultimate engine hose kit for teh G50! Kit includes *under plenum air hoses**underplenum water hoses**EGR vent hoses**plenum gaskets**(2) knock sensors**knock sensor harness**injector harness**3 ft. of OEM fuel line**. It is truely everything you'll need to overhaul the engine of the Q45.

Here it is, slightly more than $850 for the 90-93 Q models-copied right off joes site for you.

Under Plenum Hose Kit - '90-'93 Q45

Kit includes parts numbers: 11823-60U60 - $44.64 11823-60U61 - $40.25 11823-60U62 - $7.71 11823-60U63 - $17.87 11826-60U65 - $18.96 11826-60U66 - $4.48 11826-60U67 - $17.16 11826-60U68 - $6.69 11826-60U69 - $21.58 (Qty. 2) 11826-64U61 - $8.90 Plus all 8 plenum gaskets (not listed in illustration): 14032-60U01 - $4.29 Ea.

$244.14 on the site, less directly from Joe. I sort of purchased it.

The kit that you're describing is the complete engine hose kit. And it looks to be the one for 90-93's without TCS.

[qship96]

I ordered and had T3 install "the ultimate hose kit" compilation {855$$ for the 94-96q} every hose in kit was for "under the plenum", there is about 25-30 hoses under there! Double check with joe, but the kit you are referring to seems to be missing quite a few of the hoses under there!

[Haitian_King]

I ordered and had T3 install "the ultimate hose kit" compilation {855$$ for the 94-96q} every hose in kit was for "under the plenum", there is about 25-30 hoses under there! Double check with joe, but the kit you are referring to seems to be missing quite a few of the hoses under there!

I believe I got the air hoses. The Ultimate kit seems to have air, water, and fuel lines. It seems that KS and harnesses are included as well. I wasn't looking to spend the $850 right now in either case. I purchased the other kit to have that done. If Keith deems it necessary for me to have the ultimate kit, then I can just nix the whole thing and postpone it. I just thought I'd be a doing some small lines and things. I was surprised at the girth of some of my new hoses.

This is the kit that Joe gave me over the phone and the one that I received.

[Q45tech]

Simple after 100k/7 years the hoses you don't change will be the hoses that fail.After 18 years I changed all hoses 2 times and 3/4 of those - 3 times.

Just part of $3,000 annual cost.

Many of hoses won't kill the car if they fail but coolant hose [heater/rad/under plenum] and gasoline hose can make it a challenge to drive.

Always keep a dry chemical extinguisher in trunk.

[Haitian_King]

Simple after 100k/7 years the hoses you don't change will be the hoses that fail.After 18 years I changed all hoses 2 times and 3/4 of those - 3 times.

Just part of $3,000 annual cost.

Many of hoses won't kill the car if they fail but coolant hose [heater/rad/under plenum] and gasoline hose can make it a challenge to drive.

Always keep a dry chemical extinguisher in trunk.

Damn.

I guess I can only blame my youthful ignorance. I did not plan for the complete hose replacement. In fact, the smaller kit that I purchased was purchased as an afterthought. My main focus was on the chain guide replacement kit.

I'm glad that you and qship96 have helped me to see where I have erred. I'm in a spot of trouble now though. Out of the budgeted $3000 for 2008, I've already spend $711 on parts and I'm going to spend another $1900 on the chain guides and valve cover reseal. I'd gladly pay half of that for the time and ability to do it myself.

Given the hoses that I DO have now, hopefully they'll suffice until May/early June where I'll purchase the non-HICAS "Summerize" kit and the remaining hoses.

Damnit. It'll mean having to pull up to plenum again. Would it be best to just nix the current hose replacement and not pull the plenum now and wait until I have all of the hoses? I only thought to include these hoses because the front cover and stuff would be off and so it would have been easier to just do that during the guide replacement.

What do you guys think? Honestly, I've stretched myself a bit thin and the current month of March isn't the best for Wireless phone sales.

It looks like I'm going TOTALLY over budget this year. $3k - $2611 = $389 left over. Maybe enough for a professional detail.

After the engine, I'll have to focus my attentions on the vibrating driveline and suspension.

Unless one has the patience of a saint, owning a Q and keeping it in good condition as a college student is a real PITA. If I wasn't so narcissistic, I'd have considered a different car. Vanity has its downfalls I guess.

[qship96]

I suggest returning the partial hose kit for a refund, get the guides and valve covers/sparkplugs done NOW, and when funding is comfortable, reorder the complete under-plenum kit and install it, not cost/time effective to do some hoses now,some later-remove plenum ONCE and do everything under there as one operation.

[Haitian_King]

I suggest returning the partial hose kit for a refund, get the guides and valve covers/sparkplugs done NOW, and when funding is comfortable, reorder the complete under-plenum kit and install it, not cost/time effective to do some hoses now,some later-remove plenum ONCE and do everything under there as one operation.

Ok. That's what I was thinking. Damn, I didn't think about sparkplugs. I can do those in the driveway right? No need to remove the plenum, pretty straightforward right? I don't think the plugs and such will get here before Tuesday morning. I'm dropping the Q off as soon as the shop opens and I'll be around there until a little after lunch. I'll be waiting for my ride then.

Hmm. I'll have to go through the return procedure and take a 20% restocking fee. Maybe I should just hold on to the hoses I have now, not get them installed, and order the new kit later and have Joe just take out the ones I already have and prorate it.

Thanks for the info. What do you think about my plan?

[qship96]

If you are paying to get your valve covers resealed, plugs go in at the same time for just a few seconds each, as all the stuff comes off in order to replace the valve cover seals- write down part number of plugs and get them locally at an auto parts store or local infiniti/nissan dealer if necessary=this will save YOU from doing it yourself later{many first time q plug changers need 4-6 hours to do plug change}, or paying a shop 4-5 hours labor to do it for you TRUST ME,GET THE PLUGS DONE WITH VALVE COVER RESEAL JOB!!!!!

AS far as returning the hoses, call joe and explain your concern regarding returning what you got now and reordering THE COMPLETE kit at a later date, you may be surprised{hint,hint} that he may be willing to waive the restocking fee in good faith for earning your repeat business in the future

If you strike out with waiving the restocking fee{I doubt it if you handle the call professionally}, your backup plan of keeping what you got and ordering the remaining parts at a later date when you are ready to do the plenum job seems a wise decision.

Good luck with your project next week, and drive the crap out of it once you are secure with the new guides!

[oldmako]

Can't speak to a '92 but I did the plugs on my 99 in about 3-4 hours and that included general messing around (various connectors, intake cleaning etc) and a time out to run to advance auto. I can't imagine that a 4.5 is that much worse, but the 'heads will let you know.

Keep the bits you have and add the rest eventually. When you get it all dig in. This thing is too much of a PITA to selectively repair (from what I can tell).

Worst case scenario, you lose a fuel line and the car catches on fire, taking you with it in an impressive conflagration augmented by 20 gallons of 93 octane.

Second worst case, you lose a hose and spew hot coolant all over. The engine overheats and cooks it's innards to the point of failure. Your Q dies an agonizing death. Molten aluminum and melted plastic drips to the pavement and forever memorializes the location of your cars death. You walk home in the rain. The EPA declares the site a superfund location and you are hounded until you die by the courts trying to collect fines and clean up costs.

Possible, but how likely really??

Next worst case, you lose an important vacuum line and the car merely starts to run ratty. Which is pretty much a given eventually anyway. It's an old car and all the rubber vacuum stuff, and heated electrical wiring are really important. You limp home and obtain "all the parts from Joe" and start wrenching. Just depends, "Are ya feeling lucky punk?" (name that movie)

[Haitian_King]

If you are paying to get your valve covers resealed, plugs go in at the same time for just a few seconds each, as all the stuff comes off in order to replace the valve cover seals- write down part number of plugs and get them locally at an auto parts store or local infiniti/nissan dealer if necessary=this will save YOU from doing it yourself later{many first time q plug changers need 4-6 hours to do plug change}, or paying a shop 4-5 hours labor to do it for you TRUST ME,GET THE PLUGS DONE WITH VALVE COVER RESEAL JOB!!!!!

AS far as returning the hoses, call joe and explain your concern regarding returning what you got now and reordering THE COMPLETE kit at a later date, you may be surprised{hint,hint} that he may be willing to waive the restocking fee in good faith for earning your repeat business in the future

If you strike out with waiving the restocking fee{I doubt it if you handle the call professionally}, your backup plan of keeping what you got and ordering the remaining parts at a later date when you are ready to do the plenum job seems a wise decision.

Good luck with your project next week, and drive the crap out of it once you are secure with the new guides!

Ok. I'll definitely get the plugs then. Idk, I'd rather not have to deal with the returning and all. I guess I'll just keep the hoses I have now and when I'm ready to do them all, get the ultimate kit - the hoses I already have. Thanks for the input.

Oldmako - I am now frightened and have almost evacuated my bowels. Thank you.

I think that I may have to replace another injector as well. I've been noticing an intermittent rough idling. This is about the time of the year that my #8 one went last year. I'll go along with my box of injectors and pray that it's the #1 or 2. If it's any of the underplenum ones, I'll have to hold off on it for about 2 months and while the plenum is off, change that and the hoses.

Goddamn this car. I swear, it's like I'm cheating on someone with it. All the secrecy about how much I'm actually spending on it makes me feel like Governor Spitzer. Wish I had a slush fund.