intake and exhaust valve replacement.


Technical information and Q&A applicable to all years and models of Goldwings
  • Sponsored Links
User avatar
1stTimeWinger
Posts: 13
Joined: Thu Mar 12, 2015 10:22 am
Location: Ardmore, Oklahoma
Motorcycle: 1992 gl1500 interstate

intake and exhaust valve replacement.

Postby 1stTimeWinger » Sat Apr 11, 2015 1:18 pm



I'm looking into purchasing an 86 aspencade 1200 . My question does anybody have feedback as to the What , When , Where , Why , and how come the valves need replacing, and cost and headache in taking on This project. For I'm a first timer when it comes to WINGS .. Any help is greatly appreciated. Thank you



User avatar
auctioneeral
Posts: 300
Joined: Thu Sep 25, 2014 8:05 pm
Location: shamong, New Jersey
Motorcycle: 1981 GL1100 nake
1981 GL1100 full dresser
Both getting restored

Re: intake and exhaust valve replacement.

Postby auctioneeral » Sun Apr 12, 2015 6:54 am

How do you know valve's need replacing. If timing belts break, it will cause valves bent. If you need valves, I brought a used head of ebay with the valves and used them valves.

User avatar
dingdong
Posts: 2864
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: intake and exhaust valve replacement.

Postby dingdong » Sun Apr 12, 2015 7:11 am

Yep! just about the only reason for bent valves is a broken timing belt. If so, there is a slight possibility there is piston damage also.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

User avatar
littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: intake and exhaust valve replacement.

Postby littlebeaver » Sun Apr 12, 2015 11:16 am

Well , the head gasket has to be replaced, that could cost $50 or so for the set, each valve may cost around $17.00 or more, You are going to need a torque wrench to torque down the head bolts ect. So your looking at around $136 for all new valves, and $50 for head gaskets...$186.00 then factor in shipping and tax..$225.00 Now gasket sets may cost more like 80-100 dollars those come with valve cover rubber gaskets and O rings..Well you get the idea..Oh your going need to replace the valves oil stems, another $25.00 Maybe $300.00 total.. :shock: I'm not a good estimator... :lol: But that should cover it.. :shock:

User avatar
Rob H
Posts: 296
Joined: Sat Dec 13, 2014 7:41 am
Location: Muscat Oman
Motorcycle: 2000 1500 SE, XR 650, CBR 600, Harley FB, KLR 650, CBX 750 Cafe Racer, Z1000 Eddie Lawson.

Re: intake and exhaust valve replacement.

Postby Rob H » Sun Apr 12, 2015 12:30 pm

Why do you want to replace the valves?

User avatar
Overdog
Posts: 173
Joined: Sat Oct 12, 2013 7:00 am
Location: Pittsburgh, Pennsylvania
Motorcycle: 83 Goldwing Interstate

74 BMW R90/6

Re: intake and exhaust valve replacement.

Postby Overdog » Sun Apr 12, 2015 1:42 pm

dingdong wrote:Yep! just about the only reason for bent valves is a broken timing belt. If so, there is a slight possibility there is piston damage also.



.....or being stupid and dropping a screw into the intake port while the carbs are off. (Don't ask me how I know! :shock: )

User avatar
Overdog
Posts: 173
Joined: Sat Oct 12, 2013 7:00 am
Location: Pittsburgh, Pennsylvania
Motorcycle: 83 Goldwing Interstate

74 BMW R90/6

Re: intake and exhaust valve replacement.

Postby Overdog » Sun Apr 12, 2015 1:45 pm

If you're looking at buying that bike and the owner is telling you he knows that the valves need replacing (and like the others said, probably a broken timing belt) the bike may very well have piston damage as well...I'd be VERY cautious about that bike!

f1xrupr
Posts: 396
Joined: Mon Jan 13, 2014 6:13 am
Location: Triplet Va
Motorcycle: 1980 gl 1100 Std. Vetter

Re: intake and exhaust valve replacement.

Postby f1xrupr » Sun Apr 12, 2015 3:02 pm

If someone worked on the engine, and installed the belts wrong, and bent the valves with the starter, it's probably ok to buy...but, if the belt broke while running, I would shy away. FYI...if it has bent valves, all of the valve springs must be released and check all valves for damage. Sometimes spring tention can hold a slightly bent valve closed, but, that valve will bend every time it opens and closes, and will probably break over time, and ruin the engine.
My exercise bike is a goldwing.

User avatar
Hoosier Jack
Posts: 139
Joined: Thu Oct 02, 2014 4:21 am
Location: Terre Haute, IN
Motorcycle: 1982 GL1100 Interstate

Re: intake and exhaust valve replacement.

Postby Hoosier Jack » Sun Apr 12, 2015 7:58 pm

Man, there are a lot of bikes out there that doesn't have this kind of problem to deal with. Maybe it's an exceptional deal and you like to do this kind of stuff.

User avatar
1stTimeWinger
Posts: 13
Joined: Thu Mar 12, 2015 10:22 am
Location: Ardmore, Oklahoma
Motorcycle: 1992 gl1500 interstate

Re: intake and exhaust valve replacement.

Postby 1stTimeWinger » Fri Apr 17, 2015 10:57 am

I want to Thank everyone for the information and replies. Was very helpful in making a decision as to whether to buy the bike or not. I decided noto to buy it cause it would be my luck and I would need a new motor instead of jus replacement of valves. Again thank you for your help .

User avatar
redial
Posts: 1993
Joined: Mon Jan 03, 2011 1:17 am
Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: intake and exhaust valve replacement.

Postby redial » Fri Apr 17, 2015 8:23 pm

Keep looking, Firstimer, you will find a GW to your liking without too many hassles.


Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.


Return to “Tech Talk”




Who is online

Users browsing this forum: No registered users and 1 guest