What did you do to your Marina today?

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PHUQ
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Re: What did you do to your Marina today?

Post by PHUQ » Wed Sep 11, 2019 12:31 pm

You do pick 'em Gareth! That said- the yellow Coupe is lovely (underseal tidemark excepted). And it at least sounds like you'll get some cake out of the deal...
Matt
1974 1973 Tundra Black Tulip 1800 SDL TC Estate "Mud"- Freshly Franked rolling shell.
Really horrible 1972 Valencia Blue Triumph 2.5 notaPIanymore Estate.

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Morris McKinnon
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Re: What did you do to your Marina today?

Post by Morris McKinnon » Thu Sep 12, 2019 9:25 am

Story of my life, mate, story of my life! :lol: :rolls: Cake is all I'll get out of the red Special, she offered the car to me! Not because it'll cost too much, I haven't even given a price as I don't really want to take it on, but she knows I'm an enthusiast and the car would be in safe hands with me. She genuinely love the car, talks about the memories she has with it so much I feel like I've owned the car myself. I was reluctant to do the work even if I got paid for it but now it would be like me taking on another project so have no idea what to do. It needs saving and I'm probably the only one who won't scrap it. It is bad and realistically should be broken up for parts but I can't do that cos I know how she feels about the car, I felt the same way with REP and would only sell her to someone I knew who would look after her. So there you have it, I've been offered a car I have no room for, no enthusiasm for and certainly no money to restore it as of yet, but if I leave it it'll stay where it is getting more rotten and end up scrapped alltogether.

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Morris McKinnon
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Re: What did you do to your Marina today?

Post by Morris McKinnon » Sun Sep 15, 2019 8:20 pm

Sorted out the engine mounts on that yellow Marina today, while I was there she had a few spares to give to me. Not sure if I want to go back for the rest, there were some serious looking spiders where the parts are kept!
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locost_bryan
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Re: What did you do to your Marina today?

Post by locost_bryan » Wed Sep 18, 2019 4:25 am

Engine reconditioner came and picked up my TC engine. Young bloke and his older offsider. The older guy began reminiscing about Marinas, had fond memories of the Marina pickup they had as a work hack. Younger guy mentioned they'd done a few engines for MGs and Minis, seemed to have a good appreciation of them. Just have to wait until I hear back as to what they find needs doing.

Link to their website http://www.waer.co.nz/about-us.php Tempted to get them to install the engine, and run it on their dyno to see what it actually produces.
Bryan
Auckland NZ

1972 Morris Marina 1750 TC Coupe "Ozzy"
2008 Honda Jazz 1.3 CVT

Nothing gets the ladies hotter than software development analogies. Leonard Hofstadter - The Big Bang Theory.

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locost_bryan
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Re: What did you do to your Marina today?

Post by locost_bryan » Fri Sep 20, 2019 8:00 am

Heard back from engine reconditioner. Engine has previously been bored out 40 thou, pistons and bores in good condition, crank just needs a polish, then new rings and bearings. Head has been crack tested, only needs hardened valve seats for unleaded fuel.

They're going to have a chat with their camshaft supplier to see if he can give it a slightly sportier profile without reducing the base circle too much.

Chuffed with that news.
Bryan
Auckland NZ

1972 Morris Marina 1750 TC Coupe "Ozzy"
2008 Honda Jazz 1.3 CVT

Nothing gets the ladies hotter than software development analogies. Leonard Hofstadter - The Big Bang Theory.

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drinud
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Re: What did you do to your Marina today?

Post by drinud » Fri Sep 20, 2019 8:59 am

:thumbup: :thumbup:
locost_bryan wrote:
Fri Sep 20, 2019 8:00 am
Heard back from engine reconditioner. Engine has previously been bored out 40 thou, pistons and bores in good condition, crank just needs a polish, then new rings and bearings. Head has been crack tested, only needs hardened valve seats for unleaded fuel.

They're going to have a chat with their camshaft supplier to see if he can give it a slightly sportier profile without reducing the base circle too much.

Chuffed with that news.
September 1977 Morris Marina 1.3 Coupe
September 1977 Morris Marina 1.8 Saloon

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MarinaCoupe
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Re: What did you do to your Marina today?

Post by MarinaCoupe » Fri Sep 20, 2019 9:08 am

Good stuff Bryan. Do you know what the current camshaft is? There may be a alternate BL cam from another car, with a better profile.

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locost_bryan
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Re: What did you do to your Marina today?

Post by locost_bryan » Sun Sep 22, 2019 6:24 am

MarinaCoupe wrote:
Fri Sep 20, 2019 9:08 am
Good stuff Bryan. Do you know what the current camshaft is? There may be a alternate BL cam from another car, with a better profile.
I have these figures from the factory service data for the later 150/175 four and 262 Six. My parts book lists the same part number for the cam on all the fours, so pretty sure it will be the same profile for the TC :-
Inlet Opens BTDC 9
Inlet Closes ABDC 53
Inlet Duration 242
Exhaust Opens BBDC 48
Exhaust Closes ATDC 13
Duration 241
Overlap 22
Lift .360"

That is longer duration than the 1800 (5/45 40/10), but about the same duration as the 1700 (15/45 50/10).

I haven't been able to find the cam specs for the twin carb Maxi or Allegro 1750, but since BL quoted the same power and torque figures, I would expect them to be the same profile. The other option might be the R-series MG Maestro 1600, that had a ported version of the same head and made 103bhp.

MG Maestro R-series cam timing was :-
Inlet Opens BTDC 20
Inlet Closes ABDC 52
Inlet Duration 252
Exhaust Opens BBDC 55
Exhaust Closes ATDC 17
Duration 252
Overlap 37
Lift .380"

Combined with a slightly higher 9.5:1 compression ratio (versus 9.0:1), gave a healthy 65bhp/litre, comfortably more than the Marina's 52bhp/litre.

In theory, with the extra 50cc from the .040" pistons, using the MG cam and compression ratio could give up to 116bhp and 112lb/ft, although that might be pushing the gearbox reliability.
Bryan
Auckland NZ

1972 Morris Marina 1750 TC Coupe "Ozzy"
2008 Honda Jazz 1.3 CVT

Nothing gets the ladies hotter than software development analogies. Leonard Hofstadter - The Big Bang Theory.

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timspencer
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Re: What did you do to your Marina today?

Post by timspencer » Thu Sep 26, 2019 1:49 pm

Took tara for her MOT, one advisory on the n/s trunnion but passed ok!

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First-Car as Marina
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Re: What did you do to your Marina today?

Post by First-Car as Marina » Wed Oct 09, 2019 11:51 pm

I can't see myself getting much done on these over the winter, apart from the doors and exhaust on PDA which will keep me busy enough until spring with everything else going on and it'll be a couple of good jobs off the list :thumbup:. REW will be pulled out every now and then just to keep it going, but I can't do much with it till the seat is back :lol:

So I bought them a present each and they'll be all dry with VGV, well as dry as they can be, over the winter :thumbup:
IMG_20191007_233037.jpg
1976 1.3 DL Coupe - Retired daily after 3.5 years, smashed up, now being fixed (PDA 827R) (Lumpy)
1971 1.3 SDL Saloon - Rotting into the front garden, will resume in 2020 (VGV 616K) (Rusty)
1971 1.3 DL Coupe - MOT'ed and on the road, used as much as possible (REW 5K) (Tigger)
1998 Peugeot Partner Chairman 1.4 - New daily, not like a Marina

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lock1506
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Re: What did you do to your Marina today?

Post by lock1506 » Sun Oct 13, 2019 8:34 pm

Used the van to pick up a load of stuff for my metro project
007.JPG

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locost_bryan
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Re: What did you do to your Marina today?

Post by locost_bryan » Thu Oct 17, 2019 2:23 am

Had a phone call from the engine reconditioner. Head is back together, just waiting for cam to come back from grinder. Short block largely reassembled.

They found a couple of issues. The oil pump drive shaft is worn, the square ends are nearly round, so needs replacing. Leyland Australia fitted a thick backplate that covers over the water jackets at the rear of the engine, and this has corroded, so they're going to weld metal onto it and then machine it true.
Bryan
Auckland NZ

1972 Morris Marina 1750 TC Coupe "Ozzy"
2008 Honda Jazz 1.3 CVT

Nothing gets the ladies hotter than software development analogies. Leonard Hofstadter - The Big Bang Theory.

david painter
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Re: What did you do to your Marina today?

Post by david painter » Sun Oct 20, 2019 8:11 pm

Antifreezed the marina and MGB along with tractors down to -25deg C
Dave

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drinud
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Re: What did you do to your Marina today?

Post by drinud » Sun Oct 20, 2019 10:01 pm

Survived a brake pedal falling to the floor after trying to stop from 80kmh lol
September 1977 Morris Marina 1.3 Coupe
September 1977 Morris Marina 1.8 Saloon

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locost_bryan
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Re: What did you do to your Marina today?

Post by locost_bryan » Sun Oct 20, 2019 11:12 pm

Visited the engine reconditioner on Saturday. Some nice MOPAR cars and a '60s Chevy pickup in the workshop. My engine block and head looked puny next to a big-block V8 on the workbench.

Turns out my cam has been reground at some time, their cam guy said it had been ground to 220 degrees. Got a bit confused until I learnt they use the American method of measuring duration at .050" lift, rather than off the base circle like the English. Took a bit of research to work out how the two numbers relate, but looks like the stock MGB/Marina TC 252 degree cam has 214 degrees at .050", so my 220 cam would be in the 260-270 degree range. Probably just get that polished up, rather than get it reground to 280 as originally planned.

Might also explain why previous owner couldn't get the engine to run properly, if it still had original distributor advance curve and carburetor needles.
Bryan
Auckland NZ

1972 Morris Marina 1750 TC Coupe "Ozzy"
2008 Honda Jazz 1.3 CVT

Nothing gets the ladies hotter than software development analogies. Leonard Hofstadter - The Big Bang Theory.

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