R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road > Onroad Nitro Engine Zone

Thread Tools Search this Thread
Old 05-11-2004, 11:12 AM   #1
Tech Fanatic
Join Date: Jan 2004
Location: Alexandria, VA
Posts: 756
Send a message via AIM to Proteus
Default RB V12 5 port turbo problems

My friend of mine recently purchased a V12 5 port. After breaking in the motor, he proceeded to finish the break in on the track. He was having a hell of a time trying to get the motor running. He was running still very rich, but he said that after 2-3 minutes the power just seemed to disappear. He also said that it sounded like the motor was leaning out. He was running Byron's 30% with stock .3 shim and #7 plug. He kept blowing plugs and he had also told me that the plugs would still be shiny. I think he went through three of them. He gave up and I told him to run my V12 5 port turbo instead. He was still having problems with that motor so he called it quits for the day. Anyways...later on that night I was spinning the crank by hand without the glow plug in and noticed that there was no compression. He had at the most 1 qt of fuel through it. I also noticed that the turbo head looked very suspicious. It didn't have the nice smooth surface, but looked very rough, and browned, almost to the point of pitting. It didnt' have the classic pitting that I'm used to seeing but more of just very rough. So any thoughts, suggestions, criticisms?


Proteus is offline   Reply With Quote
Old 05-13-2004, 07:00 AM   #2
Tech Fanatic
rjl's Avatar
Join Date: Jun 2002
Location: OZ
Posts: 848

Sounds like detonation, add head shims .1mm minimum.
rjl is offline   Reply With Quote
Old 05-13-2004, 08:04 AM   #3
Tech Elite
suntok2's Avatar
Join Date: Mar 2003
Location: Manila Philippines
Posts: 2,412
Send a message via ICQ to suntok2 Send a message via AIM to suntok2 Send a message via Yahoo to suntok2

I think factory defect.
suntok2 is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Novarossi 21+5, 21BF 3-port, & GO Tech .21 7-port Turbo!!! $110 shipped!! HoustonAreaRC R/C Items: For Sale/Trade 5 08-05-2008 10:30 AM
NEW IN BOX CE Turbo 30 with Turbo Flex and printer Port ap714 R/C Items: For Sale/Trade 0 12-29-2005 01:54 PM
Differences between 3port vs 5 port, Turbo vs Non turbo nikkor Onroad Nitro Engine Zone 2 09-28-2005 06:24 PM
Rb 5-port Turbo V Novamega Ms 5-port Turbo deanspoors Nitro On-Road 53 02-06-2003 05:55 AM
Is there competion between a Jp Modify 3 port turbo vs Rb 5 port turbo? Raytrix Nitro On-Road 8 03-13-2002 10:11 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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 On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 02:47 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net