Question about 1984 BMW R 65 LS

1 Answer

R65LS Restoration - Another Valve Cover Problem

It's become increasingly clear why the last person to work on this bike used gasket goo to seal the valve covers. The problem with the short stud was quickly remedied (thanks barryg) with two nuts and minimal effort. The stud came right out. I cleaned the stud and threads, applied a bit of thread-lock, and screwed it back in leaving enough to install the cover with a washer under the center nut. Life was good! After installing the tank, battery and adding gas it was time to see if my many months of amateurish mechanics would pay off. Sure enough, the bike started and I was able to take a short spin around the neighborhood. After parking the restoration project, I noticed quite a bit of oil leaking from around the valve covers (on both sides). I let everything cool off and attempted to tighten all fasteners. No significant improvement. So, do I forget about the stock gaskets and go with RTV or is there a trick to installing the valve covers that I have missed?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 2,712 Answers

The OEM gaskets have adhesive built on to them. This is always the side with printing on any BMW gasket. Clearly the head has to be clean when installing a new gasket for the adhesive to adhere. I have a similar leak problem on one bike, and it appears the surfaces aren't smooth enough to seal with oe gaskets. My solution is aftermarket "silicone" gaskets, which do the trick, but are a bit tricky to use. No glue with these. It appears a lot of times previous owners are taken by surprise that there are outboard studs on the valve covers and try prying the cover off after only removing the center nut. This hurts the sealing surfaces, of course. When the bike was new, the OEM gasket was installed with the factory adhesive adhering it to the cylinder head only, and it didn't leak. Subsequent leaks were caused by incorrect procedures by various previous owners, untrained mechanics, etc. A lot of times the threads in the cylinder head for the center stud get stripped. This occurred especially with the too-short studs, as they didn't get threaded into the head enough.

Posted on Nov 20, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How to replace a valve cover gasket in a xr600r Honda dirt bike

Remove the cover,
Remove the 'O' ring / gasket
Replace the 'O' ring / gasket
Replace the cover
Why do you need a video ?

Oct 15, 2014 | Motorcycles

1 Answer

How emportent is one cyl. Out of four down 30lbs on 4 Cyl. Honda

Actually, that is pretty significant discrepancy. Even though it's a flat four and one of the smoothest engines for bikes ever made, that much of a difference IS going to be noticeable. Not only that, it's about 99% a fact that it will not get better, but worse over time.

Since the GL1100's use single over head cams, the valve adjustments are critical. Due to a valve seating a little too deeply into its seat in the combustion chamber the the valve to rocker arm clearence will be diminished, and possibly become non-existant, keeping the valve open just a hair all the time. SOLUTION: Get some new valve cover o-rings gaskets, remove the covers, and adjust all of the valve clearances. If you have a tight one, You'll find it.

You also may have a burnt exhaust valve or a bent valve, causing a bad seal between the valve and the seat, allowing air to slip past lowering that cylinder presure.

Other possibilities are a Blown head gasket (Not uncommon with high millage bikes). Broken piston rings, or excessive wear of the rigns cause ring end gaps to get too large letting to much blow by. Broken Rings or heavily worn rings will be evident by blue smoke in the exhaust from the oil getting by the rings. Blown head gasket can allow coolant to get into the cylinder, or into the oil, making the oil foamy and brown. In either of these three possibilities, the heads will have to be removed. And depending on your findings, a engine overhaul may be needed.

Before pulling the heads however, get a scope that goes in through the spark Plug hole to view the inside of the cylinder to look for scoring, piston damage, etc.

Best of luck

Apr 09, 2014 | 1981 Honda GL 1100 Innerstate Gold Wing

2 Answers

Blue smoke start up

If it started to smoke after a service but didnt before, check for over-filled oil.
Otherwise it is a valve seal or piston ring gap issue.

Apr 04, 2014 | Bajaj Motorcycles

1 Answer

1985 Kawasaki 900 Eliminator has oil building up in the #3 spark plug well. I understand that there are seals around the valve cover. My questions are: 1. Can I remove the valve cover with the motor still...

Hi Rick,
That oil is coming from the rocker cover gasket, it will only get worse, do you leave the bike on its side stand a lot?
You should be able to remove the rocker cover with the engine in situ,
As for the plug torque I dont know the exact setting but do them up finger tight then add about 1/2 turn, always been good for me

Nov 03, 2013 | kawasaki Motorcycles

1 Answer

GSXR1000 2001, After coming to stop and then intial acceleration puff of smoke from exhaust, has done this since new still only 6k miles on clock. Smoking did stop after it had 1st service at Beckleys and...

The valve guide seals are the problem. They were probably bad from the factory. The bike has 16 valves times $4 per seal = $64 in seals. The cylinder head gasket is $55 and a head cover gasket set is about $51. tombones49_277.gif

Sep 08, 2011 | Suzuki GSX-R 1000 Motorcycles

1 Answer

Hi i got a kawasaki 1986 gpz 400 ( fx400) fairingless it's normally called a grey import. my problem is that the waterpump at the bottom leak when the bike is warm, but if it's cold there seem to be no...

Kawasaki's are notorious for the waterpump seals going. There are little rubber doughnut seals (3 if i remember) that run along the impellor shaft. When these break down, you get the leak. I would be pretty certain on a bike of this age, that this is your problem. It isnt a massive job to do, but if your not technically minded it can get messy. The shaft is connected by a circlip on the opposite side to pump prop, and should, i emphisise the word SHOULD slide out, once the clip is released. But beware as ALOT of these become siezed and stuck fast, so some more dissasembly may be required. You can try taking off the cover and using a good instant gasket, providing that your running temp is fine, no water in the oil (if your lucky) but these cover seals are designed to pop if there is too much pressure behind them, hence me telling you about the impellor seals.

Hope this helps mate,

Mista B.

Apr 07, 2011 | kawasaki GPZ 500 S - GPX 500 R Motorcycles

2 Answers

Hi, I have a Suzuki Katana 1988 with a slight oil weep where the head gasket meets on the left hand side of cylinder head. I have re-torqued the head bolts and replaced the valve cover gasket. Riding the...

hi what you have just described is the head gasket say you do not get a drip on the floor??check to see if the oil has travelled towards the rear of the head??if so how much??although this will not really affect the bike under normal riding it is recommended that you get it repaired sooner rather then later.

Mar 08, 2011 | 1990 Suzuki GSX 1100 FK (Katana)

1 Answer

Have a minor "fluid leak and dont know how to check the coolant

The 1984 Honda VT500 does have a liquid cooled engine. As for the fluid leak near the top of the cylinder head, it is most likely an engine oil leak coming from the valve cover gasket. Each valve cover uses a rubber gasket as well as rubber seals around each of the bolts that secure the cover to the head. Replacing these should cure the leak.

As for the temperature issue, anything within the white area of the temp gauge is considered normal. Just make sure that the radiator of full of coolant and the plastic coolant overflow bottle is filled to about the half-way mark. Use a 50/50 mix of coolant for aluminum block engines and distilled water.

The lack of power could be from plugged up carburetors (has the bike been sitting for a long period of time?). This bike also has a vacuum operated fuel petcock. Make sure the vacuum running to it is not cracked. Try smoothing the burr that you mentioned with some fine sandpaper - and by all means, make it fuel tight!

There is no published top speed for this Honda - but it should be able to reach about 90MPH on flat ground.

Sep 26, 2009 | 1984 Honda VT 500 C Shadow

1 Answer

Oil is leaking between the cylinder head and block.

If it was a valve cover I would say go ahead and try the RTV or other gasket forming material. For a head gasket, you are looking at a gasket that usually has copper or aluminum and other sealing material. Anything else just won't cut it. The internet is a wonderful place to find obscure parts and minutiae.

Feb 24, 2009 | Yamaha SR 400 Motorcycles

Not finding what you are looking for?
1984 BMW R 65 LS Logo

397 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers


Level 3 Expert

68032 Answers

phil cuzins
phil cuzins

Level 2 Expert

79 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides