Vacuum Leak at fuel injectors. 1.8 NB Head, NA Manifold, NA 315cc injectors - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to   Members

Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

LinkBack Thread Tools Search this Thread
Old 12-20-2012, 09:29 PM   #1
Junior Member
Thread Starter
Join Date: Jan 2012
Location: Sacramento CA
Posts: 102
Total Cats: 0
Default Vacuum Leak at fuel injectors. 1.8 NB Head, NA Manifold, NA 315cc injectors

Hey guys. I've got a vacuum leak at my fuel injectors at the isolator where the injector goes into the head. I've had this leak before. I replaced all the isolators and it went away for awhile, but now it's back.

I'm running a 1.8. NB BP4W Head, 1.8 NA Manifold with 1.8 NA Fuel Rail. Aftermarket 315cc injectors.

Do I have to use a special isolator for different injectors or the BP4W head?
Mysticle31 is offline   Reply With Quote
Old 12-23-2012, 04:34 PM   #2
Hittin' Boost & Cones
iTrader: (2)
240_to_miata's Avatar
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,572
Total Cats: 11

You are running an NA intake manifold on a NB head?

That won't work. Bolts line up but the ports aren't even close. That is your problem.
240_to_miata is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
91 1.6l turbo complete part out. Tony the Tiger Miata parts for sale/trade 63 12-29-2016 03:23 AM
Partial Turbo kit for a 1.6 and dual headlight kit. Andifer Miata parts for sale/trade 8 09-23-2015 06:43 PM
1991 Turbo Miata partout tottestad Miata parts for sale/trade 18 09-14-2015 08:52 PM
Mystery Engine Trouble. Halp,! vehicular General Miata Chat 12 09-14-2015 04:17 PM
FM 1.8 Mani, Test Pipe, HP+, Injectors Chooofoojoo Miata parts for sale/trade 6 09-13-2015 11:01 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 03:27 PM.