Author Topic: Cooling fins paint bubbled  (Read 1225 times)

Offline ShaunMac

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Cooling fins paint bubbled
« on: 27.02. 2013 19:42 »
Hi,

Just picked up my Super Rocket yesterday and the paint or whatever finish there is on the cylinder housing cooling fins has bubbled, but only on one cylinder.  Has this been overheating?
What would be the best way to repair/reprint it?
Thanks, ShaunMac
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Online bsa-bill

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Re: Cooling fins paint bubbled
« Reply #1 on: 27.02. 2013 20:13 »
left hand side as you sit on the seat perhaps ?

Might not be overheating, barrels being cast iron rust does get under the paint, it's job that needs doing from time to time unless you get them powder coated ( which some advice against).
I have a very thin flexible small diameter rat tail file that can strip off old paint between fins a treat, then coat with a heatproof paint,
Cylinder Black used to be the choice of many but lots of choice out there these days, it's a matter of personal choice I like shiny Black others prefer matt or satin finish
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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 ShaunMac

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Re: Cooling fins paint bubbled
« Reply #2 on: 27.02. 2013 21:08 »
Thanks Bill. Yes, left as,you sit on the seat. Is there a reason why you went for that one?

Cheers,
Shaun
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Online bsa-bill

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Re: Cooling fins paint bubbled
« Reply #3 on: 27.02. 2013 22:17 »
for some reason A's seem to overheat on that side, I read that the small hole in the left hand conrod was introduced by BSA to squirt some oil up the inside of the left pot to improve cooling , previous to this that side had given overheating problems.
Divided opinions exits on this though

Could be to do with oil being introduced from the right handside of the crank and maybe oil getting warmer and  a bit weaker flow as it passes through, don't worry about it though.

A pic once you get it fettled would please us all
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1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online Billybream

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Re: Cooling fins paint bubbled
« Reply #4 on: 28.02. 2013 08:10 »
Hi Shaunmac.
I have used SIMONIZ VHT TOUGH BLACK GLOSS SPRAY PAINT with great success, might not be ideal to apply on engine in frame
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1960 Super Rocket, owned since 1966, back on the road 2012 after being laid up for 29yrs.

Offline ShaunMac

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Re: Cooling fins paint bubbled
« Reply #5 on: 14.03. 2013 16:33 »
Well I started cleaning the old paint off today. Got a good amount off using a rotary scotchbrite medium mop. It got well inbetween the fins. Actually revealed the patent number in the casting.
The work continues!
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Offline Ethelred

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Re: Cooling fins paint bubbled
« Reply #6 on: 14.03. 2013 19:12 »
Barbecue paint works a treat, surprised none of our Aussie chums have mentioned that  *smile*
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'59 A10

Online metalflake11

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Re: Cooling fins paint bubbled
« Reply #7 on: 14.03. 2013 20:12 »
Ethelred: That's because improper use of barbeques and all related equipment is a capital offence in Ozz!  *smile*
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Offline ShaunMac

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Re: Cooling fins paint bubbled
« Reply #8 on: 14.03. 2013 20:18 »
Got some Granville Cylinder Black. Just in two minds as to brush or spray?
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Online WozzA

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Re: Cooling fins paint bubbled
« Reply #9 on: 15.03. 2013 03:26 »
Ethelred: That's because improper use of barbeques and all related equipment is a capital offence in Ozz!  *smile*

You can get away with it if ya tell the Mrs your cleaning up the BBQ...   wink2
Then when she isnt looking paint them ON TOP of the hot plate & turn on to cure...

Only problem is the snags taste wierd for a week or 2...   *eek*
but a few beers wash them down..   ;)
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Online bsa-bill

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Re: Cooling fins paint bubbled
« Reply #10 on: 15.03. 2013 09:50 »
AHA I notice all evidence of use has been removed, not a prawn  or a tinnie in sight

sounds like a plan though
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1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online metalflake11

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Re: Cooling fins paint bubbled
« Reply #11 on: 15.03. 2013 21:58 »
Only problem is the snags taste wierd for a week or 2... ..............Nice one!  *smile* *smile* 
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Offline ShaunMac

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Re: Cooling fins paint bubbled
« Reply #12 on: 15.03. 2013 21:59 »
Ah, snags. A word I've not heard since I lived in Oz for a year mid 90's. Loved the place!
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