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Could HDEO be the cause of Valve out of spec? #4526577
09/26/17 09:16 AM
09/26/17 09:16 AM
Joined: Nov 2016
Posts: 10
Singapore
Brandonysz Offline OP
Brandonysz  Offline OP
Joined: Nov 2016
Posts: 10
Singapore
Hey guys, I just noticed that my valves tick halfway while riding. Could it be that changing to HDEO from 4T be the cause of it? Like the detergents washing away the dirt/sludge on the engine internals and causing a change in valve height etc?

Didn't really notice whether the tick was gradually getting louder because I usually ride with music, and only happened to notice it today.

Re: Could HDEO be the cause of Valve out of spec? [Re: Brandonysz] #4526671
09/26/17 10:48 AM
09/26/17 10:48 AM
Joined: Jun 2003
Posts: 17,842
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,842
Deplorable in apple valley, ca
no


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Could HDEO be the cause of Valve out of spec? [Re: Brandonysz] #4526834
09/26/17 02:22 PM
09/26/17 02:22 PM
Joined: Jan 2012
Posts: 422
hawthorne, Ca.
46Harry Offline
46Harry  Offline
Joined: Jan 2012
Posts: 422
hawthorne, Ca.
Valve height doesn't change unless there is valve seat recession or a valve job is performed at which time the machinist doing the work should check for installed height. A hydraulic lifter could get a piece of dirt in it causing it to collapse or something is starting to fail internally which will cause a tick, the HDEO didn't cause the problem.

Re: Could HDEO be the cause of Valve out of spec? [Re: Brandonysz] #4526885
09/26/17 03:52 PM
09/26/17 03:52 PM
Joined: Jul 2007
Posts: 4,342
Midwest USA
LoneRanger Offline
LoneRanger  Offline
Joined: Jul 2007
Posts: 4,342
Midwest USA
Originally Posted By: Brandonysz
Hey guys, I just noticed that my valves tick halfway while riding. Could it be that changing to HDEO from 4T be the cause of it? Like the detergents washing away the dirt/sludge on the engine internals and causing a change in valve height etc?

Didn't really notice whether the tick was gradually getting louder because I usually ride with music, and only happened to notice it today.


What brand of bike? If a Moto Guzzi, just spend the ten minutes per cylinder and adjust the valve lash back to spec. Easy peasy !!



'09 Subaru Forester ...................(QS HM 5W30)
'16 Moto Guzzi Stelvio 1200 .....(ENI i-Ride PG 10W60)
Re: Could HDEO be the cause of Valve out of spec? [Re: Brandonysz] #4526991
09/26/17 05:45 PM
09/26/17 05:45 PM
Joined: Dec 2009
Posts: 5,653
Central IA
Robenstein Offline
Robenstein  Offline
Joined: Dec 2009
Posts: 5,653
Central IA
Valves tend to get tighter not looser on modern engines with modern oils. When I had my Triumph checked that was the case as the valves had hammered a bit into the seat from taking it to 7k RPM from time to time.

Now as some mentioned if it is looser the things that cause that is a hydraulic lifter needing adjusted or you wear. Heck my bike was louder after being properly adjusted. Kind of annoying but better a little sloppy than too tight.


2011 Triumph Speedmaster
1986 Chevy Monte Carlo SS
1970 Chevy Nova
2006 Scion TC
Re: Could HDEO be the cause of Valve out of spec? [Re: Brandonysz] #4527134
09/26/17 08:20 PM
09/26/17 08:20 PM
Joined: Nov 2016
Posts: 10
Singapore
Brandonysz Offline OP
Brandonysz  Offline OP
Joined: Nov 2016
Posts: 10
Singapore
Thanks for the replies, that means I can continue using it hahaha! Gonna go get it checked by my mech today and see if it valve adjustments.

@Loneranger & Robenstein: Not a triumph, CBR150R DOHC 4 Valve hahaha


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