Author Topic: Loctite or not...  (Read 995 times)

Offline K1100

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Loctite or not...
« on: 22.08. 2014 15:34 »
I've just done my first 50 miles after a rebore and all was/is well except for a slight leak at the rocker oil pipe connection to the rocker box. I tightened the nuts at my halfway stop, and they have needed a little more tightening again when I got back home. Last year I covered just about 350 miles after buying the bike and had to tighten these nuts a couple of times. Does anyone use Loctite on these?

Online bsa-bill

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Re: Loctite or not...
« Reply #1 on: 22.08. 2014 16:48 »
I use copper washers on there, haven't had them slacken tho
Loctite comes in different strengths, unless advised otherwise I'd start with a weaker version and see if it holds them, if not progress upwards
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline K1100

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Re: Loctite or not...
« Reply #2 on: 22.08. 2014 18:18 »
Thanks Bill... at the moment I have black fibre washers. I will replace them with copper before resorting to loctite.

Online BSA_54A10

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Re: Loctite or not...
« Reply #3 on: 23.08. 2014 09:10 »
And anneal them before you fit them.
If you can find some thicker ones then all the better.
Bike Beesa
Trevor

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Re: Loctite or not...
« Reply #4 on: 23.08. 2014 12:15 »
Thanks Bill... at the moment I have black fibre washers. I will replace them with copper before resorting to loctite.

I've tried red fibre washers on Triumph rocker drain banjos and they came loose.

Offline a101960

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Re: Loctite or not...
« Reply #5 on: 23.08. 2014 12:18 »
This what I use: Dowty washers. I tried fibre, and copper washers neither of which sealed effectively. These sealed well.

Offline Rgs-Bill

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Re: Loctite or not...
« Reply #6 on: 23.08. 2014 18:36 »
This what I use: Dowty washers. I tried fibre, and copper washers neither of which sealed effectively. These sealed well.

Try the proper fiber washers designed for this, and soak them in gas before mounting them, works for me.  Have also tried copper ones, prefer the fiber ones.  Soak in ethanol free gas if it is available.

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Although getting a bit tougher to do ! !

Offline Erico

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Re: Loctite or not...
« Reply #7 on: 27.08. 2014 11:28 »
Hi K1100, I had the same problem as you after engine rebuild. I eventually put a dab of green thread lock on the bolts. The bolts never loosened and the leaks stopped. I used red fibre washers behind the oil union and flattened the rear face of the union on a surface plate.  Cheers Erico
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Offline Topdad

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Re: Loctite or not...
« Reply #8 on: 27.08. 2014 12:07 »
I'm getting totally pis er fed up with my rocker feeds . Fixed 'em 3 times ,new fibre washers previously copper washers took her for spin on Sunday great ride now just been in the garage and clean oil on the head and ski sloop . Bolts not loose just not seating properly. A101960 where do you get those dowty washers from they look like the ones I've had before with a full engine gasket set . I'll give it another go tonight. Regards B
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Offline a101960

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Re: Loctite or not...
« Reply #9 on: 27.08. 2014 13:21 »
Quote
where do you get those dowty washers from
Dowty washers or seals as they are sometimes called can be had from any place that deals in hydraulic bits and pieces. Anyway, I have sent you a P.M. I have found a couple in my garage.
John

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Re: Loctite or not...
« Reply #10 on: 27.08. 2014 14:02 »
Hi K1100, I had the same problem as you after engine rebuild. I eventually put a dab of green thread lock on the bolts. The bolts never loosened and the leaks stopped. I used red fibre washers behind the oil union and flattened the rear face of the union on a surface plate.  Cheers Erico

Sometimes the face machined into the cylinder head isn't perpendicular to the threaded hole.  That'll make you scratch your head!

Offline Topdad

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Re: Loctite or not...
« Reply #11 on: 28.08. 2014 10:18 »
Thanks TT , "a line is said to be perpendicular to another line if the 2 lines intersect at a right angle "
So my thinking ; back of oil connector flat + surface on rocker case flat bolt passing through would be (should be ) perpendicular .

not used to killing brain cells that way , back to work .
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