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Just recieved my dipricol gauges and was wondering how hard it is to drill the manifold, a little nervous about doing this ( and I work and jet aircraft and drill into parts that can cost $100,000 ) as I don't want to screw up my warranty and manifold. how hard is it to remove manifold.
Drilling the manifold is not hard. Make sure that you have a sharp bit. When I did mine I did not use grease on the bit like some say to, but I did shop vac'd the hole after I tapped it. The one thing to remember if you are tapping the hole is to make sure that you get the tap centered and square, then take your time. If you remove the tap to check your progress, it is really easy to cross threat the tap that you just did. So watch out for that. I installed mine on the driver side manifold. As fas as removing the manifold, that looks like more work than just drilling and tapping the hole. Diesel Manor has instruction on their web site for installing guages. They may be a good reference for you.
Just recieved my dipricol gauges and was wondering how hard it is to drill the manifold, a little nervous about doing this ( and I work and jet aircraft and drill into parts that can cost $100,000 ) as I don't want to screw up my warranty and manifold. how hard is it to remove manifold.
There's a few pics of one of my installs in my gallery.. An 'easy' place to drill and tap.. And for wire/lead routing as well.. Somewhat vertical drilling, and most chips drop out of the manifold while drilling in this position.. You 'can' drill with the engine idling or some use a vacuum as well to help keep small bits from droping in.. Hard for them to fall upwards though, and I didn't find it necessary.. Graduate the drill bit sizes on up to reduce the size of the particles.. I checked the hole after drilling with a wire probe with a tack strip...Nothing.. Make sure when you tap, to tap 'shallow' and re-check as the manifolds are fairly thin and an over tapped pipe thread hole won't taper tighten, and may shoulder bottom out before tightening..
No need to pull the manifold if done carefully..
...............HP...............
Last edited by Hayapower!; May 26, 2006 at 12:52 AM.
Drilled mine beginning with an 1/8 inch bit and move up in two or three increments till you get to the size you need. Works alot easier than starting with the bit size you need to finish.
WB6ANP, do an "advanced search" in this forum for post titles only that have "gauge install". I wrote up a pretty good write up of the whole process, and my input. MOST IMPORTANT: Be sure to drill at the same angle as your manifold goes- at an angle, and NOT straight up. This is a mistake that I made, an you can learn from. Also, I would NOT drill with the engine running- that sounds crazy, as that sucks the shavings into your turbo!!! I drilled a smaller hole (at an angle!), then another larger hole with the correct sized bit. Then I vacuumed it with a shop vac. The I tapped it, then vacuumed it again. Search for, and read my detailed post for more tips on the wiring, etc...
Thanks to all who sent a response I bit the bullit tonight and drill and tapped the manifold wasn't that hard also isn't as thin as I thought fromreading the posts ( not whe your used to working with .020 to .050 sheetmetal.)