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Location:
Albury
Registered:
February 2003
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 Corona MK2
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Mon, 10 February 2003 07:19
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Hello,PLEASE HELP ME! i recently baught a Corona Mk2 '74. I had had it for 1 week, the head gasket went and the head warped. Maby those adds about private sales and buying a lemon were true. Anyway i was wondering what motor would go into it without a hassel. one WITHOUT AN ALLOY HEAD! and prefferably under $1000. Everyone i have asked so far is saying only an 4m, or m4 will go in it. It has a 3speed auto gear bok, i believe it is the original. Something that will not require me to replace suspension, and exhaust would be good.
Thanks!
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Location:
Albury
Registered:
February 2003
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Re: Corona MK2
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Mon, 10 February 2003 07:41
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jUST SOMETHING that wont warp will be fine.................................
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Location:
1st street on the right
Registered:
November 2002
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Re: Corona MK2
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Mon, 10 February 2003 08:22
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If it's a 4m then any M motor will fit.
How much to spend?, how fast to go?
for example a 7mgte will fit, but you will need a gbox upgrade with anything beyond std (voice of experience)
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Location:
Albury
Registered:
February 2003
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Re: Corona MK2
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Mon, 10 February 2003 08:27
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Um... can spent from $600 to $1000 i guess. It would be good if it could go fast, but it is a first car, so im not too worried if it doesent. As for the gearbox... it would be to hard to put a manual is it wouldent it? have to put a clutch in an all. Maby an supra or celica auto or something....
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Location:
Albury
Registered:
February 2003
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Re: Corona MK2
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Mon, 10 February 2003 08:43
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This is what i got quoted from one wrecker:
'81 (Celica Supra) 5M-E 2.8 (168.4), I-6, SOHC EFI
Thats with computer, and all the other stuff, which once again, i know nothing about.
Is that a good price? what are the chances of the motor being rooted?
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Corona MK2
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Mon, 10 February 2003 08:54
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You didn't supply a price, the number of kilometres the 5ME travelled or any idea of the cylinder compression. Your guess is as good as any of ours.
How about the simplest option - get another 4M head ($50), get it surfaced ($50), buy a head gasket ($20-80) and take car to a mechanic to get the head replaced (if you're not confident enough to do it yourself).
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Corona MK2
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Mon, 10 February 2003 08:58
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Just get the current head machined 
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Toymods Board Member
Location:
Sydney
Registered:
September 2002
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Re: Corona MK2
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Mon, 10 February 2003 10:20
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Myth..
Try and get a 5MGE if you want to go that way.. A 5ME is not a fantastic motor out of the box.. A 5MGE is better being twin cam.. You usually find them in latish Cressida's..
If you get the motor, try and get the gearbox also.. Only because it's 4 speed not 3.. The tailshaft will have to be modified to suit if you are going to use the 4 speed box... You can use the front section of a RA23 tailshaft and bolt the second half of the MkII's tailshaft... Any M's series motor will bolt in.. Try and avoid a 7MGE if you want reliabilty, unless the head gasket has been changed.. These motors are renown for it..
You didn't buy a lemon, I have a MKII also.. There big, comfy and ugly... You can't beat them!!!
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Location:
Brisbane
Registered:
December 2002
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Location:
Brisbane
Registered:
December 2002
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Re: Corona MK2
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Mon, 10 February 2003 11:44
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oops im sorry.  I stated the obvious with 5me and 4me engines...i know because i own one..also 7m series. I cant really comment on 5mge and 6mge cos i never owned one. I am sticking to my boss302 mate...i just launched that thread again. bought more parts for it this weekend 
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Corona MK2
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Mon, 10 February 2003 12:02
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Owned all M series (bar 3M and 6/7MGE), and never had a problem (that wasn't my fault). I honestly can't understand what people actually have against them. They are incredibly reliable work horses given that all those engines are now over 20 years old. Exactly what do you people expect? Nobody would hop in an XC Falcon with a 200 CID 3 speed auto and expect it slam down a 15 second quarter after it has been neglected for all of its life.
I really don't know where some people get off sometimes.
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Location:
Brisbane
Registered:
December 2002
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Re: Corona MK2
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Mon, 10 February 2003 12:11
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well most of us speak from experience. there are lucky ones like yourself obviously that havent had problems. Then there are the not so lucky that have nothing but problems. I will actually stand up for my 5me because in 2.5yrs it has only had one problem...cracked head which wasnt the engines fault...a shit hg was used when it was rebuilt. But it now has a recod head etc and is like new. Although its almost certain these old engines blow them again. People with old 5mes now couldve blown 3 or 4 gaskets by then. Perhaps if a person was supernice to the car like an old granny couple it might never have blown one. its all about owners as well...a slightly problematic engine can turn into a major pos very easily if mistreated.
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Location:
Brisbane
Registered:
December 2002
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Re: Corona MK2
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Mon, 10 February 2003 12:13
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forgot to mention ive owned only a 5me, 5mge and 7mgte. 5mge was 86 cressida, 5me supra ma61, 7mgte soarer mz21. mate had a 4m crown.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Corona MK2
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Mon, 10 February 2003 12:30
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I still don't understand why they're a shit motor.
I have never heard of a 2/4/5M actually blowing a head gasket that wasn't cooked by the owner. That is carelessness or neglect, and is the result of a shit owner rather than a shit motor.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Corona MK2
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Mon, 10 February 2003 12:54
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oh dear, here we go... "robbo and the engineering masterstroke of the pushrod 302" vs " the rest of the sensible world, and the M series engine with a tappet drive SOHC"
dear god
the 5me was making 103kw with EFI in 1979 in a truly economical manner, it was a PIONEERING engine. its this ingenuity that saw the m series in sevice over 30 years. GTs right: garbage in, garbage out.
everyone spanks the m series for zero warranted reason. tighten the headbolts, which was i belive was made available in a service bulletin at some point. end of story.
quit the gas bagging
ed
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Corona MK2
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Mon, 10 February 2003 13:00
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oh, and di i mention the 7mgte got engine of the year in 1987
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Corona MK2
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Mon, 10 February 2003 13:20
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every single 7m/5m with a BHG i have EVER pulled apart is like this... and in all cases guess which head bolts were finger tight.
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Location:
Albury
Registered:
February 2003
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Re: Corona MK2
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Tue, 11 February 2003 06:53
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hehehe hehehehe
Thanks for your help:) i think i will just stick another 4m in it for now, they are a reliable motor, the only reason i cooked mine, is because i over worked it and didnt think to check the radiator. It is the first time i have had an old car, actually the first time i have had a car alltogether.
I will keep it however, and when i have more money, do it up. A 7m-gte, and a 4speed gear box. however then i will need to get new suspension, new exhaust...new new new....
The 4m will do for now, just gotta remember the damn coolent.
.....
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Location:
Brisbane
Registered:
December 2002
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Re: Corona MK2
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Tue, 11 February 2003 08:01
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please yourself. engine of the year ay? Guess they didnt look nissans way Maybe that was before the 160km you get before the hg blows.
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Location:
Albury
Registered:
February 2003
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Re: Corona MK2
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Tue, 11 February 2003 09:26
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lol its quite funny you say that, i only got 190Km in mine before it blew!
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Location:
Brisbane
Registered:
December 2002
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Re: Corona MK2
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Tue, 11 February 2003 09:38
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you're a lucky fella 
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Corona MK2
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Tue, 11 February 2003 11:03
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| ROBBO_ma61 wrote on Tue, 11 February 2003 19:01, with respect to the 4m:: |
please yourself.
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robbo, seriously, you should see a worked, triple side draught hi-po 1969 2M before you you piss so streamingly upon them. c.inch for c.inch, it would most certainly piss on your 302.
myth: the 4m has a fair bit of potential if youre up for some fab work and a lot of fiddling about. parts these dys are HELLA cheap, and you can afford to have a good play with them, and learn all about OHC engines, carbies etc etc.
theyre a really robust engine as long as youre sensible, and take PREVENTATIVE maintenance measures (unlike the majority of loud vessles on these forums). i can garuntee you youll have a lot of fun toying with the old 4m, and youll be suprised as to how hard they really can go.
cheers
ed
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Location:
Albury
Registered:
February 2003
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Re: Corona MK2
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Tue, 11 February 2003 11:08
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Thanks mate  looks like im heading for a 4m anyway.
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Location:
Brisbane
Registered:
December 2002
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Re: Corona MK2
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Tue, 11 February 2003 11:14
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never even seen a 2m ed thats why i didnt say anything about them. read the post before commenting.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Corona MK2
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Tue, 11 February 2003 11:28
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m/2m/3m/4m/5me/5mge/6mge/7mge/7mgte
same shit, different colour. the only reason i picked on the 2m was because it directly compares to the vintage of your 302 (late sixties). my comments are as valid for all the above listed engines, and thus argue interchangeably with respect to whatever you wrote above.
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Location:
Brisbane
Registered:
December 2002
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Re: Corona MK2
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Tue, 11 February 2003 12:08
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righto
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you can have the both for a decent price...yes the 4m was a big heap of shit...the beginning of a disaster engine series bar 6mge.