Recent Topics
AC Delco CF188
by K20FA5 - 01/20/20 05:00 PM
Wix WL10255 6,254 miles
by K20FA5 - 01/20/20 04:56 PM
when did handsfree and bluetooth
by WhyMe - 01/20/20 04:50 PM
2020 Dodge Durango GT
by parshisa - 01/20/20 04:18 PM
F1 filters
by Bettez88 - 01/20/20 04:10 PM
Limitations on bluetooth OBDII scanners?
by jayjr1105 - 01/20/20 03:27 PM
Quaker state 5w20 $1.50
by Villalobos - 01/20/20 02:00 PM
Heavy Calibers
by rrretiree7 - 01/20/20 01:09 PM
Filter Efficiency Specs
by Talent_Keyhole - 01/20/20 01:05 PM
Larger filter for 19 Ram
by Schwifty - 01/20/20 12:52 PM
Duralast Max Ceramic Pads Photos!
by NASTI - 01/20/20 11:23 AM
expensive rotors
by Donald - 01/20/20 11:19 AM
3 Fram Ultra's Cut Open
by jetman - 01/20/20 10:31 AM
Standard Cab Commercial
by Duffyjr - 01/20/20 10:17 AM
The thin grease for firearms
by fnbrowning - 01/20/20 10:07 AM
Replace coil packs with spark plugs?
by jayjr1105 - 01/20/20 09:34 AM
Michelin Premier LTX Different Tread
by chuck wood - 01/20/20 08:49 AM
Best ear plugs for concerts,clubs?
by aquariuscsm - 01/20/20 07:47 AM
Newest Members
ckinch1, EAC1, Kronguy, jamespeter26, RSH
70491 Registered Users
Who's Online Now
104 registered members (Astro_Guy, 06_lx, AndyB, A_User55555, atikovi, 9 invisible), 2,753 guests, and 22 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics300,359
Posts5,174,141
Members70,491
Most Online4,538
3 hours ago
Donate to BITOG
Print Thread
Hop To
Is valve lash adjustment included with piston r&r? #5283401 12/02/19 08:40 PM
Joined: Feb 2011
Posts: 54
L
ljbrandt Offline OP
OP Offline
L
Joined: Feb 2011
Posts: 54
My 2011 MDX has been approved by Acura for a warranty repair to remedy excessive oil consumption. The repair includes replacing all six pistons and rings.

Question is, would this procedure necessitate a valve adjustment when reassembling the head? Wanting to know before the dealer tries to double dip by selling me the "additional" service.

Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283408 12/02/19 08:45 PM
Joined: Jun 2004
Posts: 717
C
ctechbob Offline
Offline
C
Joined: Jun 2004
Posts: 717
Hard to say. You'd have to ask them, but I doubt it.

Pretty good job getting them to cover something that far out of warranty.


2008 Acura TL Type S-165k
2003 Honda Accord V6-222k
Oil-Havoline HM 5W20
Filter-Partsmaster 61334
Trans-Idemitsu H+
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283452 12/02/19 09:36 PM
Joined: Jun 2014
Posts: 2,651
U
UncleDave Online Content
Online Content
U
Joined: Jun 2014
Posts: 2,651
Originally Posted by ljbrandt
My 2011 MDX has been approved by Acura for a warranty repair to remedy excessive oil consumption. The repair includes replacing all six pistons and rings.

Question is, would this procedure necessitate a valve adjustment when reassembling the head? Wanting to know before the dealer tries to double dip by selling me the "additional" service.


Why would the heads come apart?

Off - yes, apart no.

Pistons and rings are the bottom end and heads are the top end.


UD


Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283469 12/02/19 09:55 PM
Joined: Jun 2012
Posts: 2,354
O
oldhp Offline
Offline
O
Joined: Jun 2012
Posts: 2,354
Heads have to come off to remove the pistons. Different head gasket thickness will make readjusting the valves a for sure at no extra charge. The only way this would not be right is if the engine is a overhead valve type. Then the heads would just be remove and replace with new head gaskets. Depending on the miles and what your going to do with it (keep or sell it) maybe a valve job too, but that's up to you.


"None of us are getting out here alive.....drink that beer.....eat that pizza......drive that Hot Rod"
"When others cut you down, remember where they came from."
"I don't run...........I just wait"
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283494 12/02/19 10:27 PM
Joined: Feb 2019
Posts: 220
V
vw7674 Offline
Offline
V
Joined: Feb 2019
Posts: 220

those look like screw-type adjusters, & Honda usually calls for clearance check at every 17,500 miles on non-hydraulic camshafts.
If it were mine, I suppose head re-install time would also be clearance check time before the covers go back on......but it isn't 'required'.
Just a while-you-are-there type of service. YMMV.

Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283559 12/02/19 11:51 PM
Joined: Mar 2008
Posts: 709
B
berniedd Offline
Offline
B
Joined: Mar 2008
Posts: 709
A new head gasket (and therefore valve lash check/adjust) is mandatory after the piston and ring work because the standard way is to access the pistons from above after the head is removed. One does not reuse the old head gasket.

Last edited by berniedd; 12/02/19 11:54 PM.
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283577 12/03/19 01:28 AM
Joined: Nov 2017
Posts: 672
K
KneeGrinder Offline
Offline
K
Joined: Nov 2017
Posts: 672
Well, some don't know how dealer mechanics operate. If you don't have the cam or any rockers in the way of removing the head bolts, the mechanic will set the cams to T.D.C. and remove the heads. Won't ever touch the valves unless he got paid flag time to adjust valves, or there is a ticker. Valves should be adjusted, and new timing belt too if its anywhere past 60/70k on timing belt.


08 Tribeca 90k PUP 5w30
06 Accord 137k PP 0w20
03 Acura CL-S 90k M1 AP 5W20
02 Acura TL-S 241k ST 5W30
02 Accord EX 155k PP 0W20
02 K3500 99k M 1 ESP 5w40
00 F350 139k M 1300 15w40
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283636 12/03/19 05:52 AM
Joined: Sep 2016
Posts: 233
T
Tman220 Offline
Offline
T
Joined: Sep 2016
Posts: 233
Not a mechanic, but some of you must think they are some sort of charity, or like doing work they wont be paid for? If the head just needs to come off, then tossed back on, there is no way those valves will be adjusted unless its in the work order and they are paid their deserved shop time to do it. If rockers need to be removed to get to a couple head bolts, then those are probably the only ones that will be adjusted.

additionally, being an overhead cam engine, head gaskets or otherwise R&R'ing the head will in no way affect the lash adjustments

Mechanics aren't like a DIY'er that thinks like... huh, while im in there I might as well as take care of this, this, and this... If mechanics did that they would find themselves working 50 hours a week and only getting paid for 35, and quickly out of a job, not sure how many of you would be ok with that?

Last edited by Tman220; 12/03/19 05:59 AM.

2012 Regal GS Turbo PP 5w30 90k
1994 Camaro Z28 LT1 355 CI, 430 RWHP PP 5W30 165k
2005 GMC Sierra 1500 5.3 166k
2004 Civic LX M5 186k
2007 Camry 2.4 245k
2016 Victory Vegas
Re: Is valve lash adjustment included with piston r&r? [Re: Tman220] #5283679 12/03/19 07:33 AM
Joined: Jan 2015
Posts: 1,510
R
ragtoplvr Offline
Offline
R
Joined: Jan 2015
Posts: 1,510
This.

On the other hand, if the book says 3 hours to adjust valves and replace timing belt, but with everything already exposed by the piston and valve job, it will take 1 hour additional, it is not fair to charge for the entire 3 hours, but most all of the mechanics do.
I see the mechanics point, they often have to repair a broken stuck bolt and flat rate does not pay for that either. But this was not MY broken stuck bolt. The system is not ideal.

Rod

Last edited by ragtoplvr; 12/03/19 07:50 AM.
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5283741 12/03/19 08:37 AM
Joined: Jun 2014
Posts: 2,651
U
UncleDave Online Content
Online Content
U
Joined: Jun 2014
Posts: 2,651
The op can expect to have ONLY the warranted parts replaced and nothing will be touched that isnt a part of that- and he is getting an awesome deal at that.

Once that engine is open that is the time for him to update anything else - new timing belt water pump valve adjustment plugs etcetera.

With any kind of good relationship the dealer will give him a smoking deal on all that and he can drive away with as fresh an engine as can be had.

If he and the dealer "had at it" up until this point maybe the deal won't be so great.


UD


Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5284138 12/03/19 03:53 PM
Joined: Aug 2004
Posts: 21,474
The Critic Online Crying
Online Crying
Joined: Aug 2004
Posts: 21,474
https://static.nhtsa.gov/odi/tsbs/2019/MC-10153886-0001.pdf

Valve Adjustment is mentioned under the procedure list, but whether it'll be followed is anyone's guess.


2011 Toyota Prius 1.8L - 202K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 143K - Valvoline Premium Blue Restore 10W-30
Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5284420 12/03/19 08:21 PM
Joined: Feb 2011
Posts: 54
L
ljbrandt Offline OP
OP Offline
L
Joined: Feb 2011
Posts: 54
Thanks to all for the info. From the responses, it seems as though the answer is: the valve adjustment should be done, but probably won't be (unless paid for).

The link "the Critic" posted doesn't mention anything explicitly about adjusting the valves.

With over 200k on the engine, I guess I can't complain.

Re: Is valve lash adjustment included with piston r&r? [Re: ljbrandt] #5284498 12/03/19 10:10 PM
Joined: Sep 2004
Posts: 8,614
A
andyd Offline
Offline
A
Joined: Sep 2004
Posts: 8,614
OHC? solid lifters? With a a head R+R, the valve lash should be checked. grin2


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™