Well now Ive really done it.

Got questions about your Infiniti? We're here to help, and it's FREE!
User avatar
Fridge
Posts: 174
Joined: Sat Feb 25, 2006 4:54 am
Car: 1991 Q45 (Obammatized) 2008 G35

Post

I finally pulled the intake from my 91 Q to service the injectors. They still ohm out ok but something must be plugged up since there is a dead miss. I will box them up and send them off for testing.

Now for the good part. I forgot to loosen the gas cap and it trickled gas into the intake last night when I checked it this morning there was gas up to the top of the runners OPPS!

I am putting paper towels down the runners to soak up the gas what else must I do? I guess I should pull the plugs and spin the motor to blow out the fuel and change the oil. I hope it did not get into the exhaust system that would be interesting to say the least.


maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

Post

Yep, pull the fuel pump plug first and let it dle until it dies, then undo the gas cap.

I think your rememdy is correct. Deatschwerks does a great job.

Tell them you are a NICO member and get some extra test data.
Modified by maxnix at 2:34 PM 10/13/2008

User avatar
Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Post

I think you're on the right track with what you describe... remove the plugs and spin the engine. Exhaust should be fun if much got in there... no idea how to handle that if you did short of pulling the exhaust from the pre-cats back so that you can blow as much gas out as possible in the first couple of exhaust strokes.

Heath

User avatar
Fridge
Posts: 174
Joined: Sat Feb 25, 2006 4:54 am
Car: 1991 Q45 (Obammatized) 2008 G35

Post

Thanks for the replies, I`m pulling the valve covers off while I am at it to repair a oil leak since I have everything apart. Question, is the nissan brand silicone really that much better than the auto parts brand? The last time I used the oem stuff and it still started leaking after 10k mile or so.

User avatar
Unnatural1
Posts: 192
Joined: Wed Mar 07, 2007 4:58 pm
Car: 1994 Infiniti Q45

Post

I used OEM RTV silicone, but I've had good luck with Permatex Grey or Black in the past on other things. You only need a small amount of RTV silicone at the front and back cam plugs. My new rubber valve cover gaskets are doing good so far but now I've got to do the oil pan!

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

Post

If you are ordering the VC gaskets from Joe, throw in some RTV and the white lithium aerosol is nice also. Filters and touch up paint are always good.

jimbyjimb
Posts: 492
Joined: Thu Apr 03, 2008 8:57 pm
Car: 1992 Infiniti Q45

Post

Infiniti silicone isn;t any different than permatex, or any other decent RTV. Infiniti labeled goods are just another brand with the Infiniti name on them. Their silicone could very well be Permatex, just as their new oil filters are Fram, or at least dead copies of a POS Fram. Sad. So very sad.

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

Post

Don't know who makes it, but I do know it works well and has the correct curing properties. I used the almost burnt orange one.

User avatar
Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Post

I have used the Nissan burnt orange and Permatex Grey... I know the Permatex says that it meets Nissan specs. I think it is a little easier to work with. T3 uses a black colored BG sealant... or at least did in '03. I think any of it benefits greatly letting it cure for 12 hours or more before heating the engine up.

Heath

User avatar
Unnatural1
Posts: 192
Joined: Wed Mar 07, 2007 4:58 pm
Car: 1994 Infiniti Q45

Post

jimbyjimb wrote:Infiniti silicone isn;t any different than permatex, or any other decent RTV. Infiniti labeled goods are just another brand with the Infiniti name on them. Their silicone could very well be Permatex, just as their new oil filters are Fram, or at least dead copies of a POS Fram. Sad. So very sad.
This is not true. Having worked for a few dealerships I can say that is not the case. I never worked for Infiniti/Nissan but I can tell you that even if an OEM supplier (which I don't think Permatex or Fram are) make a product available after market it is not necessarily the same as the part or product they make for the OEM.

Brake pads for example. Just because you buy Wagner brake pads from a parts store for a car originally equipped with Wagner OEM brakes doesn't mean you are getting the same part. The pad materials are NOT the same and are usually made at a different plant altogether.

BTW most import OEM's seem to be getting oil filters from Denso. And, Mazda, Toyota and Honda RTV silicone is definitely NOT Permatex. I believe Fram is an Allied Signal (now Honeywell) brand and Allied Signal/Honeywell is an OEM supplier. But, that goes back to what I said above. That doesn't mean the parts are the same.

That's not to say that Permatex won't work (since I suggested it above as an alternative).

User avatar
Fridge
Posts: 174
Joined: Sat Feb 25, 2006 4:54 am
Car: 1991 Q45 (Obammatized) 2008 G35

Post

Well bit the bullet and spent the extra $5. The fun part is trying to get the old stuff off. I sure am glad I dont work at the dealer cause 14 hrs cleaning gaskets probably would not cut it. Be nice if there was a spray that took it off

User avatar
Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Post

I hated that part too - especially on the covers themselves with the groove to clean out. Byron at T3 used a mini angle dye grinder with a head that looked like a heavy duty 3M scrubby pad to clean them up... made quick work of it.

Heath

jimbyjimb
Posts: 492
Joined: Thu Apr 03, 2008 8:57 pm
Car: 1992 Infiniti Q45

Post

Alot of companies that don't directly supply are owned by others that do, and my main point was decent silicone is decent silicone, and shouldn't need any cure time at all, in my experince of using silicone for almost ten years at home and professionally. The new Infiniti oil filter is a dead twin to a Fram, don't know that they buy it from them, but it is exactly the same, cardboard and all. The products are not necessarily the same, but in many cases are similar, or in many other cases, the suppliers self-labeled product is either superior or offers an option to purchase an item that is superior to OEM. Such as the case with brakes. You can buy the cheapies, the OEM, or the best ones which are all offered by the same manufacturer that made the ones on the car. Usually, not always. Two items in the same price bracket are usually similar in quality, just as anything with an OEM label is usually more expensive at the same quality. U-S-U-A-L-L-Y. Besides, who cares? Just use whatever silicone you find as long as it's a RESPECTABLE name. Car Quest, Napa, permatex, whatever. It all works the same and lasts for a similar length of time. I've never seen an OEM silicone any better than any of those three brands. The one thing I have seen, repeatedly, is OEM silicone costing more and delivering nothing more.

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

Post

Fridge wrote: The fun part is trying to get the old stuff off. I sure am glad I dont work at the dealer cause 14 hrs cleaning gaskets probably would not cut it.
Pick tools work really great and are quick. Not letting dirt fall in the spark plug holes, cleaning the valley under the plenum, checking for corrosion under the filter box, all this is why you do it yourself because the dealer tech can't take the time and beat teh book to make a living.

As far as RTV goes, mostly it goes on the same, but not all brands age the same. I buy from Joe, so it is a wash as far as price. it is more convenient for me as I go to automotive stores infrequently.

User avatar
Fridge
Posts: 174
Joined: Sat Feb 25, 2006 4:54 am
Car: 1991 Q45 (Obammatized) 2008 G35

Post

Just about ready to put the pass side cover back on, still waiting for the injectors. I pulled the upper chain cover off because of a leak. The head gasket appears to extend out to the chain cover and it is not sealing probably since doing the chain job.

So should I cut the old gasket off and use silicone? Or use another type of sealent?

User avatar
Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Post

If I recall correctly, Byron at T3 coated the gasket with RTV before putting everything back together. If the gasket is completely trashed, I would cut it off and reseal with RTV without it.

Good luck!

Heath

User avatar
Fridge
Posts: 174
Joined: Sat Feb 25, 2006 4:54 am
Car: 1991 Q45 (Obammatized) 2008 G35

Post

Well got it all sealed up. Dearchwerks called and said my injectors were all fine. Dang I hoped that would be the miss. I will change the plugs and check compression before I button it back up.

User avatar
Fridge
Posts: 174
Joined: Sat Feb 25, 2006 4:54 am
Car: 1991 Q45 (Obammatized) 2008 G35

Post

Has anyone tested the coil packs off the car? I see that there are 3 terminals marked + - and e. I could rig up a harness easy enough would the transisor have to be in the circuit? It would be nice to kknow if they are good before I put them in.

On a lighter note we won again last night so I am still the reigniing champ.


Return to “Infiniti Online Mechanic”