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1936 Cruiser 45 Head Gasket

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1936 Cruiser 45 Head Gasket

Post  1953Man on Sat Jun 09, 2018 8:21 pm

Good evening, all! My Cruiser 45 blew its head gasket today - I'm guessing that a replacement is not going to be available 'off-the-shelf' anywhere, and certainly not here on the Isle of Lewis - no motorbike shops here at all. Any recommendations for a good material to use for fabricating a replacement would be appreciated. (I can get stuff from the Internet.) Would gasket paper do the job? That seems to be what's on at the moment, but then that has just failed (I don't know how long it lasted... at least since the previous owner! Best wishes to all from James
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Re: 1936 Cruiser 45 Head Gasket

Post  Cruiser79 on Sat Jun 09, 2018 10:38 pm

Hmm... yes I'd suspect they're not exactly available over the counter anymore. I'd imagine the best material (from a DIY point of view) would be graphite gasket paper? Its rated upto 1000⁰C so should be up to the job heat wise. I have a great big sheet of the stuff about 1mm thick, if you'd like me to cut up several pieces for a few tries at a head gasket I'd be happy to fire them over in the post to you. You just get a hard flat surface, and it cuts nicely with a fresh stanley blade, stud holes can be done with a cheap gasket hole punch set from ebay


Last edited by Cruiser79 on Mon Jun 11, 2018 12:09 pm; edited 1 time in total
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Head gasket

Post  piston 197 on Sun Jun 10, 2018 5:58 am

Would suggest the combination of alloy head and iron barrel wouls be best suited to either an alloy or copper gasket as the idea is to transfer heat from the cylinder to the head in order to dissipate it. Most laser cutting firms would be able to draw one up from the head profile and laser or water jet one from thin alloy sheet . Post war Villiers engines all used alloy gaskets as standard, allthough some cheap sets used the Hallide fibre material
JH
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Cad

Post  Bigjim on Sun Jun 10, 2018 8:23 am

If you want the cad file drawing, send me the old one, I will sent you a card version for sized testing. When you are happy, I will send the a file format that any good laser/waterjetfirm can use. You just need to cover the postage costings.
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1936 Cruiser 45 Head Gasket

Post  1953Man on Sun Jun 10, 2018 7:09 pm

Thank you gents for all the offers of help and the advice. Thank you Cruiser 79 for your kind offer of graphite paper too. I'll order a set of punches from eBay tomorrow for the gasket as you suggest and visit my friend who is the island's tractor mechanic and is well used to patching up elderly machinery - I think he might well have graphite gasket material... if not, I'll get back to you. I like the idea of a copper / alloy gasket being made by a laser cutter and will make enquiries online about that too, as it sounds like a fairly long term solution, if Black Betty eats the graphite paper gasket! I'll let you know how it goes. Big Jim.. I'm sorry to be ignorant, but I don't know what a Cad file drawing is - I'm managing with this iPad, but computers are out of my comfort zone! I assume it is something to do with computers? But thanks for the kind thought. Best wishes to all for safe riding in this nice weather, from James
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head gasket

Post  Bigjim on Sun Jun 10, 2018 8:07 pm

CAD stands for Computer-aided Design. As there are many variations of CAD programs, there are some file types that can easily be swapped between any CAD program. It's a bit like a translator, who can speak many languages. Or like the PDF files that can be read on virtually any computer/phone etc
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head gasket

Post  Bigjim on Mon Jun 11, 2018 6:24 pm

Steve art Villiers wants to know if you have an air cooled or water cooled engine? I have no idea. You can contact him on 01384 265797 but not Wednesdays.
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AIR OR WATER

Post  piston 197 on Mon Jun 11, 2018 6:29 pm

If it is a seagull it will be air cooled, not many maufacturers used the watercooled top end,but those that did included SOS Excelsior and Jawa
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seagul

Post  Bigjim on Mon Jun 11, 2018 7:22 pm

Silly question, but I know very little re FB. What is a seagul?
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seagull

Post  piston 197 on Mon Jun 11, 2018 7:26 pm

The seagull was a late 30's 250cc tubular frame machine offered in hand and foot change versions as opposed to the pannelled in Cruisers, just Google Francis Barnett Seagull images to see a flock of them !
JH
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1936 Cruiser 45 Head Gasket

Post  Maurice on Mon Jun 11, 2018 7:32 pm

My Cruiser does not have ahead gasket - maybe it should have.
Looking at the Villiers Parts Catalogue the only head gasket is for a water cooled 249cc engine, presumably the Seagull one referred to above.

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Seagull

Post  piston 197 on Mon Jun 11, 2018 7:36 pm

No the seagull has the same air cooled engine as the Cruiser, but there are 14A,17A and 18A variants same as the Cruiser, the 14A uses deflector piston rather than the flat top piston of the later engines, if any had a head gasket i would expect it to be the later flat topped piston engines
JH
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1936 Cruiser 45 Head Gasket

Post  1953Man on Sun Jun 17, 2018 2:51 pm

Good afternoon all! I have managed to get some graphite gasket material, as per Cruiser 79's advice and have cut and fitted a gasket. So far, so good - many thanks. I did investigate having a copper or alloy gasket made by a laser-cutting firm, but they quoted me 112 plus postage and V.A.T. - bit steep, I thought. They explained that costs of setting up the computer programme and production machinery are the expense and they usually supply bulk orders - I only need one and maybe one for a spare. So I'll save them as an absolute last resort... after cutting a copper gasket from a mock-antique coal scuttle I have lying about in the barn. Setting up my own production machinery - kitchen scissors and blow lamp - should be a lot cheaper. But thanks for the interest and offers of help - just thought I'd let you know where things are up to. It's good to have the wheels turning and the aroma of two-stroke exhaust filling the air again. Best wishes from James
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Re: 1936 Cruiser 45 Head Gasket

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