BOV doesn't BO. - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 09-29-2008, 09:35 AM   #1
Hear me Meow
Thread Starter
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,994
Total Cats: 13
Default BOV doesn't BO.

I have an ebay RFL, and it's sticking. Is there a specific kind of oil I should use on it, or does it need to break it or something? It worked fine for about a week but now it sticks pretty badly.

If the ebay one is junk, are there any better ones that use the same flange or will I need to get a new flange welded in?
skidude is offline   Reply With Quote
Old 09-29-2008, 10:18 AM   #2
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Open it up, clean it out, and lube it. I usually use a little motor oil. You may need to adjust spring tension. The spring that came in mine was so long, the piston was unable to move. I cut about half the coils off, first one coil at a time, then a half coil at a time, until it finally would vent. But then it wouldn't seal at idle so I bought a second, long but weak spring from the hardware store. One spring sits inside the other. Valve works fine for several months, then needs to be opened and lubed again.
Ben is offline   Reply With Quote
Old 09-29-2008, 10:53 AM   #3
Senior Member
iTrader: (5)
 
Join Date: Dec 2007
Location: worcester ma
Posts: 1,124
Total Cats: 0
Default

just buy a real bov, i have the hks ssq, but im a ricer lol

u can go with the turbosmart series,

i had one of those and its nice, and they come in stealth models
urgaynknowit is offline   Reply With Quote
Old 09-29-2008, 11:30 AM   #4
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Lexington, SC
Posts: 2,084
Total Cats: 0
Default

no point in paying out the *** if Ben practically has a write-up for ebay ones to work
mazda/nissan is offline   Reply With Quote
Old 09-29-2008, 12:19 PM   #5
Elite Member
iTrader: (5)
 
akaryrye's Avatar
 
Join Date: Jul 2006
Location: Central California
Posts: 2,526
Total Cats: 0
Default

i have an ebay piston type and i could never get it to work right. I went as far as honing the bore out, but never changed the springs.
akaryrye is offline   Reply With Quote
Old 09-29-2008, 12:25 PM   #6
Elite Member
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default

I have an ebay piston type BOV and it has been working fine for months on a daily driver. Which one did you get?
ZX-Tex is offline   Reply With Quote
Old 09-29-2008, 12:31 PM   #7
Elite Member
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

I have the HKS SSQ also. Mine is about 8 years old and it works great. Never needs any attenion.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 09-29-2008, 01:51 PM   #8
Hear me Meow
Thread Starter
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,994
Total Cats: 13
Default

I have the ebay RFL, looks just like the Turbo XS RFL. It came with two springs inside, a long one and a short one. Also came with 3 pretty thick washers inside as shims. I took out the shorter spring but left all of the spacers and the long spring. What bugs me is that it worked great for a few days, then slowly started working less and less, and now it doesn't blow off at all. I just get this obnoxious turkey-sound.

Gobble Gobble.
skidude is offline   Reply With Quote
Old 09-29-2008, 06:33 PM   #9
Senior Member
iTrader: (5)
 
Join Date: Dec 2007
Location: worcester ma
Posts: 1,124
Total Cats: 0
Default

my friend has his hks on his car for 2 years, then sold it to me for pennies, and its been working on mine great, mind u im maf and vta
urgaynknowit is offline   Reply With Quote
Old 09-29-2008, 07:14 PM   #10
Junior Member
 
Join Date: May 2007
Location: San Diego
Posts: 383
Total Cats: 0
Default

on my wrx, my forge bov required graphite lubricant for it to work properly.
jobambo is offline   Reply With Quote
Old 09-29-2008, 09:48 PM   #11
Hear me Meow
Thread Starter
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,994
Total Cats: 13
Default

Quote:
Originally Posted by jobambo View Post
on my wrx, my forge bov required graphite lubricant for it to work properly.
Oh, there's an idea. Sounds like there isn't much that works on the same little nipple, so I'll try every kind of lube out there before I give up and buy a new style.
skidude is offline   Reply With Quote
Old 09-29-2008, 10:16 PM   #12
Elite Member
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default

I'll ask the obvious question. No offense but are you sure it is connected correctly?
ZX-Tex is offline   Reply With Quote
Old 09-29-2008, 10:51 PM   #13
Hear me Meow
Thread Starter
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,994
Total Cats: 13
Default

Quote:
Originally Posted by ZX-Tex View Post
I'll ask the obvious question. No offense but are you sure it is connected correctly?
I'm pretty sure, yeah. I've got it attached to the charge piping about 18" in front of the throttle body, and I've got the little fitting on top T'd off the same tube as my MS. There aren't any other connections on it, so it should be pretty straight forward.
skidude is offline   Reply With Quote
Old 09-30-2008, 12:06 AM   #14
Elite Member
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default

I use brake caliper grease on my Forge Motorsport Bov.
Bryce is offline   Reply With Quote
Old 09-30-2008, 12:11 AM   #15
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,797
Total Cats: 248
Default

Ky.
patsmx5 is offline   Reply With Quote
Old 09-30-2008, 12:30 AM   #16
Senior Member
iTrader: (14)
 
Join Date: Aug 2008
Location: Tinley Park, IL
Posts: 1,488
Total Cats: 0
Default

I love my HKS ssqv. Got it used and it works great.

I like the KY idea though!
lordrigamus is offline   Reply With Quote
Old 09-30-2008, 12:04 PM   #17
Junior Member
iTrader: (1)
 
Join Date: Dec 2007
Location: Charlotte, NC
Posts: 47
Total Cats: 0
Default

Graphite lubricant is the best thing to use but you can also use white lithium in a pinch. Standard motor oil wont last long and wd40 is even worse.
borkap is offline   Reply With Quote
Old 09-30-2008, 02:15 PM   #18
Elite Member
 
Join Date: Jan 2005
Location: vancouver canada
Posts: 1,618
Total Cats: 0
Default

The proper lube to use on a piston type BOV is sewing machine oil or hydraulic fluid.
spike is offline   Reply With Quote
Old 09-30-2008, 06:50 PM   #19
Elite Member
iTrader: (11)
 
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,382
Total Cats: 43
Default

I've had a fake Greddy Type-S on my MS6 for 10,000 miles. Works perfect.
elesjuan is offline   Reply With Quote
Old 10-02-2008, 07:08 PM   #20
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,327
Total Cats: 1,926
Default

Quote:
Originally Posted by elesjuan View Post
I've had a fake Greddy Type-S on my MS6 for 10,000 miles. Works perfect.
+1.

Well, except the MS6 part.

But I just really prefer the diaphragm design over the piston design in general. It lacks the potential for failure due to contamination or lubrication failure that plagues many piston-type valves. Keeping the sealing part separate from the flowing part makes a lot of sense from a design-reliability standpoint.
Joe Perez is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM


Thread Tools

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 08:19 AM.