MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5521 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: MGB Roadmaster
Posted by: BlownMGB-V8
Date: February 23, 2018 02:57AM

I think I might know what happened with the plugs. Since we were running low compression and a cam that is warmer than stock the DCR was probably down some, plus other factors made the 5 heat range plugs a bit cold. I seem to recall maybe we had some early issues with plug fouling and had decided to go one step hotter. So my guess is whoever changed the plugs did that, and not knowing about TA heads just bought plugs for a BBB. Then went the extra mile and got platinum. Pretty logical you would think. Anyway I have a set on the way and they aren't platinum but the Buick guys agree that they are about the best choice.

Couldn't see any bubbling in the surge tank today but the level is down a bit. I'll get some distilled water tomorrow and add a bit of coolant and re-check. So far, so good. Another week or so and I start trying to schedule another work weekend.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5521 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: MGB Roadmaster
Posted by: BlownMGB-V8
Date: March 03, 2018 01:49PM

The plugs came in finally. I had to go buy a special small diameter spark plug thread chaser and I have to chase all of the threads because they have a buildup at the bottom and the plugs won't go all the way in.
Thanks Obama.
I'm halfway done. the easy half.

Jim


lawnvett
PJ Lenihan
Winston-Salem, NC
(457 posts)

Registered:
04/29/2009 11:37AM

Main British Car:
74 MGB-GT 3.4 V-6 crate, 5 spd

Re: MGB Roadmaster
Posted by: lawnvett
Date: March 04, 2018 02:33PM

guess this will fix the spark plug auto removal events ha ha

Or maybe it's a hex on ME. I drive RM and spark plugs like to remove themselves from the head!

sure is LOUD when they pop out while motoring just ask Kelly.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5521 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: MGB Roadmaster
Posted by: BlownMGB-V8
Date: March 04, 2018 07:31PM

Yeah, I think having the right seat will make that problem go away. Got the rest of the plugs changed and went on a short drive. Seemed fine, I couldn't tell if it ran any better. Gas mileage could go up a little. Need to drive it about 30 more miles then put it on the lift and swap out the fuel tank sender. Easy job once the gas is used up.

Jim


lawnvett
PJ Lenihan
Winston-Salem, NC
(457 posts)

Registered:
04/29/2009 11:37AM

Main British Car:
74 MGB-GT 3.4 V-6 crate, 5 spd

Re: MGB Roadmaster
Posted by: lawnvett
Date: March 12, 2018 10:03PM

It's always fun using up gain that car, I remember filling it three time in WVA last summer.

Havefun.


lawnvett
PJ Lenihan
Winston-Salem, NC
(457 posts)

Registered:
04/29/2009 11:37AM

Main British Car:
74 MGB-GT 3.4 V-6 crate, 5 spd

Re: MGB Roadmaster
Posted by: lawnvett
Date: April 03, 2018 10:08PM

HI JIM

HAVE YOU BEEN ABLE TO ENJOY ANY SPRING DRIVES IN RM


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5521 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: MGB Roadmaster
Posted by: BlownMGB-V8
Date: April 04, 2018 11:46AM

Not really any drives, though I have taken it on a few errands. Ran out a tank of gas and swapped out the fuel tank sender, the old one had the float filled up with gas. New one in there now.

It's running probably the best it ever has. No more work has been done on the A/C. I pulled a vacuum on it last time we worked on it but haven't checked if it's holding yet. Have given some thought to how to make the control panel, that should be simple enough. Dan tells me he won't be free for another work session until after his daughter's wedding the 9th of June. We need to install the wiring and whatever ductwork we are going to do and then charge the system.

It still attracts attention where ever it goes.

Waiting on dry weather now, I suppose we are *finally* done with winter.

Jim



MGBV8
Carl Floyd
Kingsport, TN
(3374 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: MGB Roadmaster
Posted by: MGBV8
Date: April 05, 2018 10:25AM

Maybe after this weekend. You be looking at snow Saturday.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5521 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: MGB Roadmaster
Posted by: BlownMGB-V8
Date: June 13, 2018 06:04PM

Good News everyone!

The MG-Roadmaster now has a working air conditioner system. Steve and I went for about a 1/2hr+ test drive this morning and it blows out a good quantity of nice cold air. After awhile it began to ice up so we cracked the heater valve to de-ice the evaporator and restored operation. It left a large puddle on the floor when we parked it from condensate, it's been very humid here today (85%). It could use one more eyeball vent for the driver's side, right now both tubes just dump on your right leg, but I figure anyone can add that later. We do have an eyeball vent on the passenger's side, which can be directed towards the driver.

Do we have any plans to get it to Dayton?

Jim
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