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  1. #1
    FZS Monty's Avatar
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    Question Installation of... Intake Manifold Isolator

    Good day everyone, Ill be doing some more modifications of my ski tomorrow and the isolator is one of them. http://www.4-tecperformance.com/inde...oducts_id=1755

    Since this part arrives in the mail with no instructions what so ever, I am looking for installation advice or tips from folks who have installed, attempted to install, and had trouble with installation of this part.

    All input is greatly appreciated.


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  3. #3
    FZS Monty's Avatar
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    Question

    Thank you philip, i have read that thread a few times over and seems that people had some difficulty installing the isolator as the bolts become too short with it on. Nobody ever followed up if their install was completed or they decided to give up or modify.
    I got the impression that some.. had a successful install, and some ran into major obstacles.

    Simply from the FZ platform point of view, is the installation as simple as removal of intake manifold, install of isolator to the block, return manifold with gasket to isolator and bolt up to head with xx ft/lb as per service manual???

  4. #4
    FZS Monty's Avatar
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    ****UPDATE, follow up on isolator installation: While i had the manifold removed also did the riva ribbon removal, drilled out the manifold and tapped both ends for BOV and Boost gauge attachments.
    In stock form the isolator will not install. The head studs are just too short. Period. See pictures:

    Click image for larger version. 

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    Here is what i did, using a "two nut" technique, i backed out the head studs just enough for the nut to grab the stud fully. Installed the Isolator with seals facing the head, then the gasket, then manifold.
    Click image for larger version. 

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    Two round isolator washers go between the block and the manifold support brackets seen above.

    Torqued down the manifold in a Riva recommended manner found in the ribbon removal instructions. Used an inch-pound torque wrench, read Newton meters.

    Oil Dipstick needed some gentle tweaking to bolt up, no problem. After all was installed, ran the ski for 10 minutes on hose, variable RPM's, and this is the result: I can hold my finger tips on the manifold by the isolator, and can not even touch the head.
    On the water, i ran around for an hour, took the seat off and both the manifold and the head were not touchable. Without an accurate thermometer i can say its just about the same temp. Manifold AIR temp gauge will be installed this weekend, infrared thermometer on the way.
    Click image for larger version. 

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    BOV sounds fantastic, AFR read out is problem free. Boost gauge..... I installed the boost gauge sensor in the back of the manifold, just like Jerry in his build, but... instructions clearly say do not install into manifold. Yeah, not sure about Jerry, but mine failed after two minutes or so.. actually caught it on VIDEO: Boost sensor failure @ 0:31 seconds of the video: AFR Gauge is very visible, but not on GO Pro cam.


    Relocated the NEW boost sensor to the R&D Multi pressure Port Adapter:
    Click image for larger version. 

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ID:	247576 REMEMBER this is a 2010 adapter and cannot be Installed on 2011 models without modification, but i wanted the threaded ports. So, i made a bracket on the electrical box. see pic.

    Click image for larger version. 

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    Gages Almost Complete, Manifold air temp gauge will be installed this weekend. Went with Pet Tach 2500, fits perfectly over the stock gauge.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  5. #5
    FZS Monty's Avatar
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    Click image for larger version. 

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    Pet Tach 2500 setting P :41 is what shows most accurate RPMs. is anybody else using this?

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