User 122821

In reading the DIY (http://www.pcarworkshop.com/index.ph...re_Replacement) for replacing the spark plug wires, I knew I couldn't get my hands and arms in between the intake runners. After looking at the possible ways to get to the two wire blocks that have to be removed, I removed the lower throttle valve ('96) which gave me a large area for reaching the four screws hold down the wires under the intake.

viperbob

Easiest way is to lower the motor as much as possible on the engine mounts. Then simply (relative term) loosen the six clamps holding the intake to the rubber connectors to the fuel injector blocks. Now raise the intake. Use LOTS of whatever oil spray you have when reinserting the runners in the rubber connectors...

Robin 993DX

Bob,

I found using brake parts cleaner works well as a lub to disconnect rubber hose and connectors. Just pry open the rubber hose a little and spray a little BPC and then it comes off with ease.

Just sharing some tips.

viperbob

Yep Robin, just as long as you use something and it will come off and go on MUCH easier...

NP993

I wouldn't use a petroleum-based lubricant on rubber, which over the long term will rot the rubber. IMHO, silicone spray is much better.

User 122821

Humm, the two bolts on the throttle valve seems easier than lowering the motor and loosing six clamps. It shows there are so many ways to get this done.

Toddimus

FWIW, I believe I've read that silicone is really, really bad for catalytic converters so I wouldn't use it anywhere on the intake system, especially inside the rubber mating tubes. Just my $.02

User 122821

I believe it's the O2 sensors that fail with exposure to silicone.

http://www.picoauto.com/applications/lambda-sensor.html

Toddimus

You're absolutely right. That's what I was trying to remember. I basically filed away in my brain the idea that I shouldn't use silicone in/around the intake/exhaust.

In any event, you'd still be running the risk of having silicone being breathed in and exhausted out past the sensors. Lambda sensors aren't cheap and there would be four of them to replace!

JM993

In my experience the VRAM manifold can be lifted (and even removed and installed) without dropping the engine at all.

Deadeye

Armorall (or similar) or even just soapy water work well to lubricate rubber w/ no nasty side effects

chris walrod

I think Armorall has silicon in it -- How about good ole WD40?

NP993

Okay, if I ever have to do this, here's what I'm using:

viperbob

But it takes about 45 seconds to lower the motor a couple of inches. Those couple of inches make the job MUCH easier.

JM993

I agree, although without a lift, lowering the engine requires the always fun "suspend the car and support the engine" dance