From mgb-v8-bounces@autox.team.net Wed Aug 25 17:29:33 2010 From: "Ficalora, Robert" To: Barrie Robinson , "WSpohn4@aol.com" Date: Wed, 25 Aug 2010 23:05:04 +0000 Subject: Re: [Mgb-v8] [Mgs] Repair or replace Radiator? Don't forget too that often cooling problems can be a symptom of other problems -- running rich, air in the cooling system, etc. -----Original Message----- From: mgb-v8-bounces@autox.team.net [mailto:mgb-v8-bounces@autox.team.net] On Behalf Of Barrie Robinson Sent: Wednesday, August 25, 2010 2:07 PM To: WSpohn4@aol.com Cc: mgb-v8@autox.team.net; mgs@autox.team.net Subject: Re: [Mgb-v8] [Mgs] Repair or replace Radiator? Bill, It never is my take that any lister is taking a snipe at me. On the whole everyone is polite and we all share experiences with no malice a fore thought!. But I have to go by my experience and that is an al rad replacing a virtually new brass one from D&D (no slouches in quality) made one awesome difference. Now, admittedly, I have a stonking V8 in the gnat sized engine bay and overheating is legendary for V8 conversions but it did fix my problem. Whenever I go to V8 meets the usual cry for those with the dreaded hot flushes problem is answered by advice to go to an al rad. Maybe the new copper is Kurnifer which is copper and nickel??? At 12:15 PM 8/25/2010, WSpohn4@aol.com wrote: >No question that the rigidity of the material allows larger tube >diameters, and the core construction is thus different. The shop I >talk to says that while this will give advantage over OEM rads with >brass tanks and copper cores, it isn't better than a modern >'optimal' copper core which is what they now use for recoring them. > >I have nothing against alloy cores, I just see them being given all >the credit for improving cooling when in fact 90% of the improvement >is due to ditching a clogged OEM core for a clean modern one. > >I use alloy core on some of my stuff, but still use copper in the >race car. The advantages are more the lighter weight for the same >cooling and the fact that you can easily get a crossflow core. > >Didn't mean to snipe at you, I was just commenting that I didn't >entirely agree with what you had stated, Barrie. > >Bill > >In a message dated 8/25/2010 9:02:30 A.M. Pacific Daylight Time, >barrie@look.ca writes: >I was told (and I have not checked out my al rad) that aluminium >allowed big fat high surface area tubes that would be impossible >with copper/brass. Thus it gave vastly more cooling surface which >pounded copper/brass rads into the ground ...well, slight >exaggeration. But every time I chat to an al rad installer they all >say it made a marked improvement. This especially true in the MGB >V8 crowd. My al rad was exactly the same size as the brass one >from D&D - but it cooled considerably better - no bones about that. Regards Barrie barrie@look.ca 705--721-9060 _______________________________________________ Mgb-v8@autox.team.net Donate: http://www.team.net/donate.html Suggested annual donation $11.47 Archive: http://www.team.net/archive Forums: http://www.team.net/forums Unsubscribe/Manage: http://autox.team.net/mailman/options/mgb-v8/robert.ficalora@hp.com _______________________________________________ Mgb-v8@autox.team.net Donate: http://www.team.net/donate.html Suggested annual donation $11.47 Archive: http://www.team.net/archive Forums: http://www.team.net/forums From mgb-v8-bounces@autox.team.net Thu Aug 26 13:07:49 2010 From: Barrie Robinson To: mgb-v8@autox.team.net Date: Thu, 26 Aug 2010 14:49:00 -0400 Subject: Re: [Mgb-v8] [Mgs] Repair or replace Radiator? Larry, When I put my Rover V8 in the MGB I was aware of the cooling problems but found there was not enough space for a BIG electric fan for when car was stationary. Solved that with shortened water pump (down to 3" fat) and in went a 14" 2,950 CFM industrial Perm-Cool. But later I had an aluminium rad fitted too. Many moons later I had it in a shop who knew about Edelbrock 1404 carbs (no one in this area has any idea of "old" carbs!!!) and determined my timing and settings sucked (a technical term I use rarely). So he did wonders to the smoothness and response of the engine.....................but he took out the 14" and put in a smaller shrouded fan much to my dismay. However, all seems to be well except I do not think the smaller fan copes as well in hot traffic snarl ups - so I may put 14" back as it can do no harm - only good. At 08:18 AM 8/26/2010, Larry wrote: >It may be part of what Barrie mentioned, different materials, but I know the >"new" MX cores often used to not cool as well as even a stock old MG core if >in good shape. > >When I put the 302 in my car I "knew" up front I was going to have to recore >my radiator, every article, review, person I talked to said it was just part >of the swap. Well I happen to have a Rad pro right around the corner and >got VERY lucky. This is one of those guys that has been doing rads for >30+yrs and is one of the few left in this state due to EPA issues.. Regards, Barrie Robinson barrie@look.ca 705-721-9060 MGB GT V8 in great nick Aston Martin 1955 DB 2/4 MkII under restoration http://www.britishv8.org/MG/BarrieRobinson.htm www.britcot.com _______________________________________________ Mgb-v8@autox.team.net Donate: http://www.team.net/donate.html Suggested annual donation $11.47 Archive: http://www.team.net/archive Forums: http://www.team.net/forums From mgb-v8-bounces@autox.team.net Mon Aug 30 14:00:33 2010 From: Edd Rogers To: Barrie Robinson , Date: Mon, 30 Aug 2010 15:40:05 -0400 Subject: Re: [Mgb-v8] [Mgs] Repair or replace Radiator? Recently we had the Woodward Dream Cruise which generally creates gridlock for miles of stop and go. Temps 90 F. My BV8 has had the rubber bumpers removed, louvers in the hood over the headers, stock 77 B rad, no engine fan, but I replaced the Lucas elec fans (an oxymoron?) with a set from a Chevy van. also have a Sebring front spoiler and I fabricated a duct from the opening in that to direct incoming air thru the bottom of radiator. The car maintains slightly above halfway on the gauge with those changes. I think a lot of thought needs to br directed toward eliminating cavitation around the rad. also in creating a path for the air to get out from under the hood. If you look back at early Bs they had a rubber gasket fitted to the top of the rad support to force air to pass thru the radiator. > Date: Thu, 26 Aug 2010 14:49:00 -0400 > To: mgb-v8@autox.team.net > From: barrie@look.ca > Subject: Re: [Mgb-v8] [Mgs] Repair or replace Radiator? > > Larry, > > When I put my Rover V8 in the MGB I was aware of the cooling problems > but found there was not enough space for a BIG electric fan for when > car was stationary. Solved that with shortened water pump (down to > 3" fat) and in went a 14" 2,950 CFM industrial Perm-Cool. But later > I had an aluminium rad fitted too. Many moons later I had it in a > shop who knew about Edelbrock 1404 carbs (no one in this area has any > idea of "old" carbs!!!) and determined my timing and settings sucked > (a technical term I use rarely). So he did wonders to the > smoothness and response of the engine.....................but he took > out the 14" and put in a smaller shrouded fan much to my > dismay. However, all seems to be well except I do not think the > smaller fan copes as well in hot traffic snarl ups - so I may put 14" > back as it can do no harm - only good. > > > > At 08:18 AM 8/26/2010, Larry wrote: > >It may be part of what Barrie mentioned, different materials, but I know the > >"new" MX cores often used to not cool as well as even a stock old MG core if > >in good shape. > > > >When I put the 302 in my car I "knew" up front I was going to have to recore > >my radiator, every article, review, person I talked to said it was just part > >of the swap. Well I happen to have a Rad pro right around the corner and > >got VERY lucky. This is one of those guys that has been doing rads for > >30+yrs and is one of the few left in this state due to EPA issues.. > > Regards, > > Barrie Robinson > barrie@look.ca > 705-721-9060 > MGB GT V8 in great nick > Aston Martin 1955 DB 2/4 MkII under restoration > http://www.britishv8.org/MG/BarrieRobinson.htm > www.britcot.com > _______________________________________________ > > Mgb-v8@autox.team.net > Donate: http://www.team.net/donate.html > Suggested annual donation $11.47 > Archive: http://www.team.net/archive > Forums: http://www.team.net/forums > Unsubscribe/Manage: http://autox.team.net/mailman/options/mgb-v8/eddrogers@hotmail.com _______________________________________________ Mgb-v8@autox.team.net Donate: http://www.team.net/donate.html Suggested annual donation $11.47 Archive: http://www.team.net/archive Forums: http://www.team.net/forums From mgb-v8-bounces@autox.team.net Tue Aug 31 03:02:24 2010 From: "Paul Hunt" To: "Edd Rogers" , Date: Tue, 31 Aug 2010 09:25:49 +0100 Subject: Re: [Mgb-v8] [Mgs] Repair or replace Radiator? That, and a foam strip between the rad itself and its mounting diaphragm. I must have run my roadster for 15 years before fitting that foam strip (it always had the rubber strip) but was surprised to see it makes a noticeable difference. I think all rear-mounted radiators had the foam strip, but only from Mk2 was the rubber strip provided, according to the Parts Catalogue. Forward mounted radiators didn't have either, but the under-bonnet felt sound-proofing is pretty close to the top of the rad. PaulH. ----- Original Message ----- > ... If you look back at early > Bs they had a rubber gasket fitted to the top of the rad support to force > air > to pass thru the radiator. _______________________________________________ Mgb-v8@autox.team.net Donate: http://www.team.net/donate.html Suggested annual donation $11.47 Archive: http://www.team.net/archive Forums: http://www.team.net/forums