Broken valve cover bolt


Information and questions on GL1100 Goldwings (1980-1983)
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pschweitzer
Posts: 74
Joined: Mon Jun 10, 2013 6:03 pm
Location: Warrenton, Virginia
Motorcycle: 1983 Goldwing Interstate GL1100I

Broken valve cover bolt

Post by pschweitzer »



Well there goes a really beautiful day to ride here in Houston. My buddy let me use his garage to replace an o-ring in my lower hose connection to the water pump and also change my oil. We were going to go for a ride to lunch. Got all that done in an hour and the last job was to replace the left side valve cover gasket which was seeping a bit while riding. I took the cover bolts off and looked down at the back one and realized it had broken off inside the block. Never felt it snap. Good news is that the bolts and seals are still available, but would like suggestions on the best way to back out the broken piece. It is about 1/16" below the surface so I can't get pliers on it. I am thinking easy-out but anyone have better suggestions (including which extractors work best). It is a small bolt, but maybe big enough to drill for an easy-out.



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RBGERSON
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had every year from 75 to 83

Re: Broken valve cover bolt

Post by RBGERSON »

try left hand drill 1st, then easy out but if the easy out breaks you are toast
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

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RB

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Dusty Boots
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Re: Broken valve cover bolt

Post by Dusty Boots »

I've had good luck with one of the Irwin extractor sets, which includes the Cobalt drill bits.
Make sure you drill the broken bolt as close as possible to it's centre

pschweitzer
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Location: Warrenton, Virginia
Motorcycle: 1983 Goldwing Interstate GL1100I

Re: Broken valve cover bolt

Post by pschweitzer »

Thanks for the info. I got a #1 extractor from Sears Hardware, but I'm with you Robert, if it breaks I guess I get to change the head gasket on that side as I'll have to remove and get to a machine shop. I'll either go to Harbor Freight or Auto Zone as get a set of left hand bits. Even if the bit just drills it will be in the right direction instead of tightening.

Am I right that these bolts tighten against the seal on the cover and the collar on the bottom? If that's the case then after it broke off there should not be any tension on the bolt and it should back right out. I wish it was just a bigger bolt. It will be very careful centering the bit even with a punch and very slow starting.

pschweitzer
Posts: 74
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Location: Warrenton, Virginia
Motorcycle: 1983 Goldwing Interstate GL1100I

Re: Broken valve cover bolt

Post by pschweitzer »

Reverse bit was the way to go. Loosened and drew the broken part up flush with the head and then I used an easy out to remove the rest of the way.

T-Rat
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Location: knoxville tn
Motorcycle: 1983 GL1100a & 2000 Sportster 1200

Re: Broken valve cover bolt

Post by T-Rat »

pschweitzer wrote:Reverse bit was the way to go. Loosened and drew the broken part up flush with the head and then I used an easy out to remove the rest of the way.
I got the same problem.....where did you get the left handed bit?....I can't seem to find one in my area!

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maintainer
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Location: Houston, Texas
Motorcycle: 1977 GL 1000
1982 GL 1100 Interstate (Sold)

Re: Broken valve cover bolt

Post by maintainer »

Curious question,
How did the valve cover bolt break?
From overtightening?
The torque spec is only around 9 ft. lbs.
My guess is from overtorquing bolts to seal an old hardened gasket.
1982 GL 1100 Interstate SOLD
1977 GL 1000 Standard (naked can be good, who knew?)

pschweitzer
Posts: 74
Joined: Mon Jun 10, 2013 6:03 pm
Location: Warrenton, Virginia
Motorcycle: 1983 Goldwing Interstate GL1100I

Re: Broken valve cover bolt

Post by pschweitzer »

T-Rat...I got a set of easy-outs with reverse bits from my local O'Reilly auto parts store. I think it was $21 for the whole set. They had individual bits but the set wasn't all that expensive and something I didn't have in my toolbox. Harbor Freight has them as well and I think Sears Hardware has them. Definitely a lot of places online. Make sure you are on the center of the bolt and start small and work your way up in size as needed and go slow at first.

Maintainer...If it was over torque at some point it wasn't by me. I have had these covers off at least 5 times over the last year for valve adjustments or the top end job I did last winter. Always torqued the bolts to spec. I had this happen with my fuel pump as well. It snapped before I even had any real pressure on the wrench. This valve cover bolt did not feel any different then the other three on that side when I broke them loose, so it was a surprise when I found it snapped. I actually only noticed it when I was putting the cover back on and couldn't engage that one. I am wondering if age, heat, vibration, an unseen factory flaw or any combination of the above was the culprit to the failure of a 30+ year old bolt. Either way it's fixed and I am happy about that.

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maintainer
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Location: Houston, Texas
Motorcycle: 1977 GL 1000
1982 GL 1100 Interstate (Sold)

Re: Broken valve cover bolt

Post by maintainer »

I see, that is worrysome.
Must be a very poor grade of bolts to fail under such a small torque load.
It caught my attention because I just had my valve covers off for a clearance check.
1982 GL 1100 Interstate SOLD
1977 GL 1000 Standard (naked can be good, who knew?)

T-Rat
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Location: knoxville tn
Motorcycle: 1983 GL1100a & 2000 Sportster 1200

Re: Broken valve cover bolt

Post by T-Rat »

pschweitzer wrote:T-Rat...I got a set of easy-outs with reverse bits from my local O'Reilly auto parts store. I think it was $21 for the whole set. They had individual bits but the set wasn't all that expensive and something I didn't have in my toolbox. Harbor Freight has them as well and I think Sears Hardware has them. Definitely a lot of places online. Make sure you are on the center of the bolt and start small and work your way up in size as needed and go slow at first.

Maintainer...If it was over torque at some point it wasn't by me. I have had these covers off at least 5 times over the last year for valve adjustments or the top end job I did last winter. Always torqued the bolts to spec. I had this happen with my fuel pump as well. It snapped before I even had any real pressure on the wrench. This valve cover bolt did not feel any different then the other three on that side when I broke them loose, so it was a surprise when I found it snapped. I actually only noticed it when I was putting the cover back on and couldn't engage that one. I am wondering if age, heat, vibration, an unseen factory flaw or any combination of the above was the culprit to the failure of a 30+ year old bolt. Either way it's fixed and I am happy about that.
Thanks I'll check with O'reilly. Got a friend that works there. Mine broke as I was installing it. Didn't seem like I was tightening it any more than I have always done it just snapped..........assumed it to be a combination of age and many heat cycles!

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Wilcoy02
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1983 GL1100I frame with an 80 engine. poor boy installed with C-5 ignition--DIED in Grande Prairie Alberta Canada 8/15


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Re: Broken valve cover bolt

Post by Wilcoy02 »

My 1100 broke one bolt while riding and my friend behind me got sprayed all over with oil.

I got my reverse drill bit at napa.

4wred
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Re: Broken valve cover bolt

Post by 4wred »

What type of torque wrench have you been using? I use a inch pound wrench when torquing values that low on the foot pound scale.Some ft. pound wrenches aren't very accurate at settings that low.BTW 9 foot pounds=108 inch pounds.

pschweitzer
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Location: Warrenton, Virginia
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Re: Broken valve cover bolt

Post by pschweitzer »

Beam type on anything less than 15 lbs. I never can trust the click type on the low torques.

Rambo3536
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Motorcycle: 1980 goldwing 1100

Re: Broken valve cover bolt

Post by Rambo3536 »

Had same thing happen, spent alot of time and money, ect. Finally took the head to a machine shop and for 20.00 had it the next day.

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DCoxson1969
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Motorcycle: 1981 GL1100 Interstate

Re: Broken valve cover bolt

Post by DCoxson1969 »

If anyone has this problem in the future, be very careful if you try an easy out. I was laying on my side, not wearing my glasses and the drilled for the easy out. Well it got into the threads and snapped. I thought I would have to replace the head but a friend of mine drilled it out and installed a helicoil. Worked great. But it was a learning experience. WEAR YOUR GLASSES DUMMY! lol
FIREFIGHTER: Busting mine to save yours!

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randall_l_davis
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Location: Southside, AL
Motorcycle: 1983 Honda Goldwing GL1100I Interstate

Re: Broken valve cover bolt

Post by randall_l_davis »

If you're referring to the cylinder cover or valve cover add everyone, including me, likes to call it, the torque spec is 8ft-lb
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42kDraven
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1982 GL1100 <Helena>

Re: Broken valve cover bolt

Post by 42kDraven »

I know this is an old thread, hoping I can revive it for my question... I had taken my left side valve cover off to look at the gasket (same story as OP, slow drip of oil during riding) and when I tightened it back up, one of the bolts snapped. I don't have a torque wrench (still a rookie, it's on the list now) and was just using a 3/8" ratchet. Where do you GET another one of those bolts? And a gasket? My goal was to seal it up with RTV Black as a temp fix 'til I could find a gasket. Now I need a gasket AND a bolt... I tried oldbikebarn.com and jpcycles.com as well as my local Napa, Autozone, etc., all with no luck. Maybe I need to get a whole new valve cover to obtain the other bits? Wouldn't be heartbroken, kinda wanna replace them anyway as they're really worn. Thanks for the assist y'all!

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DenverWinger
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Re: Broken valve cover bolt

Post by DenverWinger »

Cyclemax can get them, a price listed other than 0.00 means they are still available from Honda. For that matter your local Honda dealer might have some on hand.

Part #4 in the picture should be replaced if it's the valve cover leaking, these rubber parts are what transfer the force from the bolts to the valve cover to hold it tightly. Replace any that are in degraded condition.

You might find though that the real culprit is actually the shaft seal on the gearshift lever that's been oiling your shoe, that's a $5 part that's also still available from Honda or Cyclemax.

https://partsfinder.onlinemicrofiche.co ... AD%20COVER


♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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Rambozo
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Re: Broken valve cover bolt

Post by Rambozo »

Another good option for old Honda parts is Partzilla.

https://www.partzilla.com/catalog/honda ... head-cover

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Lucky07
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Location: Ottawa, ON Canada
Motorcycle: 1983 GL1100A Aspencade, 1984 CB550SC

Re: Broken valve cover bolt

Post by Lucky07 »

DenverWinger wrote:
Thu May 21, 2020 7:02 am
Cyclemax can get them, a price listed other than 0.00 means they are still available from Honda. For that matter your local Honda dealer might have some on hand.

Part #4 in the picture should be replaced if it's the valve cover leaking, these rubber parts are what transfer the force from the bolts to the valve cover to hold it tightly. Replace any that are in degraded condition.

You might find though that the real culprit is actually the shaft seal on the gearshift lever that's been oiling your shoe, that's a $5 part that's also still available from Honda or Cyclemax.

https://partsfinder.onlinemicrofiche.co ... AD%20COVER
Capture.JPG
I changed all those #4 grommet thingys on my '83 last summer, rubber got hard and they were all weeping a little, along with the valve cover gaskets. Got them from Mother Honda, expensive little things. My advice would be if they all look the same (none obviously looking much newer), change them all while you're at it.

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42kDraven
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1982 GL1100 <Helena>

Re: Broken valve cover bolt

Post by 42kDraven »

Lucky07 wrote:
Thu May 21, 2020 10:52 pm
I changed all those #4 grommet thingys on my '83 last summer, rubber got hard and they were all weeping a little, along with the valve cover gaskets. Got them from Mother Honda, expensive little things. My advice would be if they all look the same (none obviously looking much newer), change them all while you're at it.
I'm going to order new gaskets for both sides, as well as new bolts and boots. Just to make sure I'm well sealed. Partzilla has them for relatively inexpensive. Thanks for the advice everyone!

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DenverWinger
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Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Broken valve cover bolt

Post by DenverWinger »

Still betting the majority of the oily left shoe is caused by the shifter seal... :o


♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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