Amazon Black Friday deals
IPD sale XeMODeX - Experts in Volvo Electronics

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

Question regarding both the CVVT and VVT Hubs.

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
Paulz
Posts: 10
Joined: Tue Aug 11, 2020 4:19 pm
Year and Model: 2004 Volvo Xc90
Location: New Jersey
Has thanked: 1 time

Volvo Repair Database Question regarding both the CVVT and VVT Hubs.

Post by Paulz »

Quick question for you all since I can’t seem to find any info online or on the forum. Are both hubs spring loaded? I know the exhaust hub is spring loaded but is the intake hub also spring loaded? I need to replace my exhaust hub since it doesn’t spring back, but is the intake hub also supposed to spring back into place?

Quick edit: it’s on a 2.5l 2004 xc90
cn90
Posts: 6916
Joined: Wed Mar 31, 2010 9:54 am
Year and Model: 2004 V70 2.5T
Location: Omaha NE
Been thanked: 163 times

Re: Question regarding both the CVVT and VVT Hubs.

Post by cn90 »

You can search for recent posts by "jimmy57"...
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
User avatar
abscate
MVS Moderator
Posts: 23205
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 412 times
Been thanked: 1270 times

Re: Question regarding both the CVVT and VVT Hubs.

Post by abscate »

Both spring type and non-spring type were used by Volvo

Pull your part numbers and we can try reference them

jimmy57 did recently cover the exact breakdown on this in a recent post, as noted above.

here it is!!


viewtopic.php?f=9&t=94821#p551036
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
Paulz
Posts: 10
Joined: Tue Aug 11, 2020 4:19 pm
Year and Model: 2004 Volvo Xc90
Location: New Jersey
Has thanked: 1 time

Re: Question regarding both the CVVT and VVT Hubs.

Post by Paulz »

The exhaust I know if spring loaded the intake side is part# 8642282 that is the one I’m not sure is spring loaded it has no lateral wiggle and spins about 1-2 teeth back and forth just unsure if it’s spring loaded
jimmy57
Posts: 6670
Joined: Fri Nov 12, 2010 9:25 am
Year and Model: 2004 V70R GT, et al
Location: Ponder Texas
Has thanked: 4 times
Been thanked: 275 times

Re: Question regarding both the CVVT and VVT Hubs.

Post by jimmy57 »

Intake are not spring loaded. If it is spring loaded then you have to exert some force to turn it one way and when you let go it springs back.
User avatar
ggleavitt
Posts: 428
Joined: Sun Jun 04, 2006 11:33 pm
Year and Model: XC90 05-2.5T, 08-V8S
Location: Seattle
Been thanked: 61 times

Re: Question regarding both the CVVT and VVT Hubs.

Post by ggleavitt »

My Exhaust hub PN 9497786 was not spring loaded when I replaced it ('05 2.5T) in 2014 due to too much in/out play causing the front seal to leak.
2005 2.5T AWD-201k
2008 V8 AWD Sport-134k
Paulz
Posts: 10
Joined: Tue Aug 11, 2020 4:19 pm
Year and Model: 2004 Volvo Xc90
Location: New Jersey
Has thanked: 1 time

Re: Question regarding both the CVVT and VVT Hubs.

Post by Paulz »

ggleavitt wrote: Wed Aug 12, 2020 1:31 pm My Exhaust hub PN 9497786 was not spring loaded when I replaced it ('05 2.5T) in 2014 due to too much in/out play causing the front seal to leak.
So I was just thinking I may not get a spring loaded one, I found both the exhaust and intake on eBay attached to the crankshafts for $240 together , I bought them. Might as well just replace both but my exhaust hub was leaking terribly blew my turbo.
User avatar
oragex
Posts: 5111
Joined: Fri May 24, 2013 6:20 am
Year and Model: S60 2003
Location: Canada
Has thanked: 100 times
Been thanked: 308 times
Contact:

Re: Question regarding both the CVVT and VVT Hubs.

Post by oragex »

Just careful to mark everything after locking the cams. Look up on Youtube
User avatar
SuperHerman
Posts: 1600
Joined: Mon Dec 01, 2014 1:28 pm
Year and Model: 2004 & 2016 XC90
Location: Minnesota
Been thanked: 174 times

Re: Question regarding both the CVVT and VVT Hubs.

Post by SuperHerman »

Man oh man - what did you buy? The hubs are attached to the crankshafts? Never have seen anything like that before.

A couple of thoughts: It may be difficult to remove the hubs from the camshafts, just be careful you don't damage any of the lobs when removing them. While attached and locked down it is semi-easy, but when detached it is not so simple. I would imagine if you swap the hubs and cams as a unit they should be timed correctly (assuming factory set). If you go this route you can slide the front cam seals on from the rear. You may want to keep your current cams as they are worn to the head and valve cover.
Paulz
Posts: 10
Joined: Tue Aug 11, 2020 4:19 pm
Year and Model: 2004 Volvo Xc90
Location: New Jersey
Has thanked: 1 time

Re: Question regarding both the CVVT and VVT Hubs.

Post by Paulz »

@SuperHerman , so I plan on actually removing them from the cranks that came with it. I ensured that part numbers matched before purchasing , I never seen anything like either found it on eBay. I just don’t have the money to buy both hubs brand new $300-$350 a piece plus all the labor already put into the car is too much for me to spend
Post Reply
  • Similar Topics
    Replies
    Views
    Last post