Loose cylinder head bolt - Page 2

mtbdrew · 10-04-2015, 04:27 PM

Quote:

Originally Posted by Water Warrior 2

A couple drops of Blue Loktite would solve the problem.

Not sure the blue Locktite would stand up to the heat?

Water Warrior 2 · 10-04-2015, 08:17 PM

Quote:

Originally Posted by mtbdrew

Not sure the blue Locktite would stand up to the heat?

Give it the benefit of the doubt, nothing ventured nothing gained.

onna · 10-08-2015, 09:56 PM

I've got blue loctite on the other set of bolts. Red you have to take a blowtorch to heat it hot enough to break loose. So far since tightening the last bolt it hasn't leaked. Also noticed that it started running better.

Water Warrior 2 · 10-08-2015, 11:12 PM

Quote:

Originally Posted by onna

I've got blue loctite on the other set of bolts. Red you have to take a blowtorch to heat it hot enough to break loose. So far since tightening the last bolt it hasn't leaked. Also noticed that it started running better.

You could likely build a battleship with red stuff. No welding needed.

onna · 05-20-2017, 08:22 PM

Thought I'd give an update on my leak. Looks like my issue wasn't the bolts being loose but the valve cover gasket was needing redone. Hopefully fixing that will work. The old gasket could be wiped off with a paper towel.

spldart · 05-20-2017, 09:07 PM

It's called SUZUKI BOND. I went with some sort of SILICONE GREY i got at the autoparts store and used it very sparingly.
So far so good.

PS: I've used the blue stuff too on these motors.

onna · 05-20-2017, 09:52 PM

The blue stuff works, the bolts that were lose haven't since so that's good. I used the silicone black gasket stuff since gray said not to use around gas. Looking like it had been done before but they didn't wait for the stuff to set.

alantf · 05-21-2017, 07:21 AM

I've got 30,000 km on my GZ. In that time I've noticed oil on the fins twice. The bike shop mechanic tightened the head bolts both times, and cured the problem. Seems like loose head bolts is a common Suzuki problem.

Water Warrior 2 · 05-21-2017, 06:38 PM

I wonder if it might be a case of unequal expansion and contraction of the head and cylinder that might have a bearing on the head bolts coming loose. A little Loktite on the bolts may help. Just a guess from me since we never had a problem with Lynda's bike.

An air cooled engine may exceed optimal operating temps while a liquid cooled engine upper operating temp is governed by the thermostat. Food for thought.

Vegas Street Rider · 05-21-2017, 09:17 PM

When the weather gets hot here in Las Vegas, I switch to 20/50 weight oil. I have right at 16,000 miles on my bike with no leaks so far and when I checked my head bolts after detailing my bike recently, everything looked good. Just changed to the heavier oil this week as it will be 100 degrees + this week. Trying to stretch my baby's life out as far as possible.

10-08-2015, 09:56 PM	#13
onna Junior Member Join Date: May 2015 Posts: 8	I've got blue loctite on the other set of bolts. Red you have to take a blowtorch to heat it hot enough to break loose. So far since tightening the last bolt it hasn't leaked. Also noticed that it started running better. Login or Register to Remove Ads
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05-21-2017, 07:21 AM	#18
alantf Senior Member Join Date: Nov 2008 Location: Tenerife (Spain) Posts: 3,715	I've got 30,000 km on my GZ. In that time I've noticed oil on the fins twice. The bike shop mechanic tightened the head bolts both times, and cured the problem. Seems like loose head bolts is a common Suzuki problem. __________________ By birth an Englishman, by the grace of God a Yorkshireman.
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05-20-2017, 09:07 PM	#16
spldart Senior Member Join Date: May 2015 Location: Stafford, Texas Posts: 604	It's called SUZUKI BOND. I went with some sort of SILICONE GREY i got at the autoparts store and used it very sparingly. So far so good. PS: I've used the blue stuff too on these motors.
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05-20-2017, 09:52 PM	#17
onna Junior Member Join Date: May 2015 Posts: 8	The blue stuff works, the bolts that were lose haven't since so that's good. I used the silicone black gasket stuff since gray said not to use around gas. Looking like it had been done before but they didn't wait for the stuff to set.
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05-21-2017, 06:38 PM	#19
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	I wonder if it might be a case of unequal expansion and contraction of the head and cylinder that might have a bearing on the head bolts coming loose. A little Loktite on the bolts may help. Just a guess from me since we never had a problem with Lynda's bike. An air cooled engine may exceed optimal operating temps while a liquid cooled engine upper operating temp is governed by the thermostat. Food for thought.
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05-21-2017, 09:17 PM	#20
Vegas Street Rider Senior Member Join Date: May 2015 Location: Henderson, NV Posts: 1,087	When the weather gets hot here in Las Vegas, I switch to 20/50 weight oil. I have right at 16,000 miles on my bike with no leaks so far and when I checked my head bolts after detailing my bike recently, everything looked good. Just changed to the heavier oil this week as it will be 100 degrees + this week. Trying to stretch my baby's life out as far as possible.
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