Author Topic: Head gasket / breather?  (Read 667 times)

Offline iansoady

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Head gasket / breather?
« on: 23.09. 2010 14:39 »
Have finally got the A10 propery up & running and it's going very well. However, when cracking along (say 70mph) there is a noise that sounds something like a blowing head gasket from the near side. It disappears at low speed / standstill which of course is the only time I can put my hand / head down there to feel for it - no sign of gas escaping. Compression is excellent on both pots.

However, what has just struck me is that I understand the engine breather exits from the crankcase just behind the primary chaincase. Could it be this making the noise?
Ian.
1962 Golden Flash (arrived)
1955 Velo Viper/Venom (departed)
2004 Triumph Tiger 955i (staying)

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Re: Head gasket / breather?
« Reply #1 on: 23.09. 2010 21:02 »
Could well be it Ian. If the head gasket is leaking you will see oil at the joint. Do a comp test after a ride when hot.
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'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
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