drilling fuel rails
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
drilling fuel rails
anybody drilled fuel rails w/ 17/32 bit? seems to be alittle loose to me. works good for the intake side but don't think it will hold the fuel pressure. just dont want to ruin my rail stock.
17/32
or 13,5 mm will do just fine , in fact that is the correct size.
But you have to have a good surface finish and also make a 45 degree chamfer dia 14,5 mm so the part will be easy to enter.
Heribert
But you have to have a good surface finish and also make a 45 degree chamfer dia 14,5 mm so the part will be easy to enter.
Heribert
If it is not understood , it will not work!
-
SDConcepts
- MegaSquirt Newbie
- Posts: 4
- Joined: Thu Jul 20, 2006 4:14 am
- Location: warren
- Contact:
you really nee da reamer. you need to predrill the hole to .313 with a drill and then finish drill to .500, then ream to .535-.540. oh yeah then chamfer the end. this will give you a nice sealing surface.
Check out my website:
Http://www.superiordesignconcepts.com
we specialize in custom efi fabrication as well small scale cnc and prototype design.
Http://www.superiordesignconcepts.com
we specialize in custom efi fabrication as well small scale cnc and prototype design.
-
wildwestsydney
- MegaSquirt Newbie
- Posts: 18
- Joined: Sat Dec 30, 2006 9:17 am
I have a drill press and that is it, the last set I did I made from scratch out of round stock, for the injector holes I drilled to 1/2 inch and then reamed slowly with a cut down spade bit, ghetto I know but it worked and never leaked. this time I bought the fuel rail stock and just need to drill the injector fittings out, I'm thinking about just grinding a few thousandths off of my 17/32 bit to tighten the fit some and then first drilling to 1/2. if I had the proper equipment I would use it believe me but I do all my own work.
