Anyone got a spare engine?

Author
Discussion

slinky

Original Poster:

15,704 posts

251 months

Wednesday 11th April 2007
quotequote all
Yup, looks like GOK has gone mildly terminal!

Wobbly crank pulley and timing shagged, the curse of the 4 slot pulley cry cry

So, I've got about 20p, any advances?

slinky

DennisTheMenace

15,605 posts

270 months

Wednesday 11th April 2007
quotequote all
Bugger

A few engines on e bay at the mo mate , or ring round a few breakers , autolink in southampton are supposed to be very good ,


Or you could do that V8 conversion scratchchin

redgriff500

27,024 posts

265 months

Thursday 12th April 2007
quotequote all
I presume you know about the simple loctite fix.

Have done a couple myself seems to be a pretty permanant cure and costs bugger all really.

slinky

Original Poster:

15,704 posts

251 months

Thursday 12th April 2007
quotequote all
redgriff500 said:
I presume you know about the simple loctite fix.

Have done a couple myself seems to be a pretty permanant cure and costs bugger all really.


I've read about it a few times, wasn't sure quite how good it would be... But, if it's that easy to do, and you reckon it's "pretty permament", then I'll have a bit more of a look into it!

Cheers guys..

slinky

juzzyp

167 posts

230 months

Thursday 12th April 2007
quotequote all
I know a few people who may have a few spare.

Drop me a PM and I can pass you on his details.

He's a top bloke and based in Nottingham.

redgriff500

27,024 posts

265 months

Thursday 12th April 2007
quotequote all
Well depending upon damage, usually all you need is a new bolt and key and a tube of loctite (or similar).

Basically people don't tighten the crank bolt up enough, it loosens and mangles the end of the crank, so all you need to do is align it correctly and then tighten it correctly. Not much harder than doing the cambelt.

I know of several cars that have several years of motoring on them after being fixed and are still going strong.

chockymonster

658 posts

212 months

Thursday 12th April 2007
quotequote all
redgriff500 said:
Well depending upon damage, usually all you need is a new bolt and key and a tube of loctite (or similar).

Basically people don't tighten the crank bolt up enough, it loosens and mangles the end of the crank, so all you need to do is align it correctly and then tighten it correctly. Not much harder than doing the cambelt.

I know of several cars that have several years of motoring on them after being fixed and are still going strong.


The crank nose bolt is done to a low torque level, about 80 ft/lb. Usually they are over tightened. We had this problem with our first '5. Instead of loctiting the keyway I made up a new key using normal key material and shaped it exactly to fit the worn crankshaft.
It didn't take too long to do, it was just tedious. It lasted until my wife parked it in a ditch 12,000 miles later.

Just be aware that the later big nose crank engines aren't immune to a very similar problem!

redgriff500

27,024 posts

265 months

Thursday 12th April 2007
quotequote all
Over tightening is not my experience !

Usually they end up finger tight !

There isn't an easy way to lock the engine and you cannot do it by applying the brakes...

Personally I drill a hole in the bottom of the bell housing and lock the flywheel with a screwdriver which is the fastest way.

steil

1,113 posts

241 months

Tuesday 17th April 2007
quotequote all
Unfortunately I think this happened to mine last night - the large pulley on the engine didn't look like it was in-balance & looked a touch wobbly - engine was occasionally sounding like a diesel at idle which made me look for an under-bonnet issue.

Anyway died on the M25 - loads of steam pouring out, mangled belt & pulley itself looped into the belt & unnattached.

Is this repairable - any detailed info on the 'loctite' fix mentioned above.

many thanks,

BTW this is a 1.8 eunos

redgriff500

27,024 posts

265 months

Thursday 19th April 2007
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The problem is usually on early 1.6 MK1.

I think you have had a similar problem again caused by idiot mechanics being too lazy to properly torque up the crank bolt.

Usually isn't much of a problem unless the bolt has damaged the crank threads / end of the crank.

steil

1,113 posts

241 months

Thursday 19th April 2007
quotequote all
Just found the bolt - first 2cm or so on it has knackered thread - hopefully it should be possible to threadlock it back in. However if that doesn't work - is there another option - or is it new crank?

cheers,

DennisTheMenace

15,605 posts

270 months

Thursday 19th April 2007
quotequote all
Retap it and a larger bolt ?

redgriff500

27,024 posts

265 months

Friday 20th April 2007
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If you mean the bolt - BUY A NEW ONE !

If Mazda haven't got one in stock, I'm fairly sure I have one.

If you means the crank try to clean it up with a tap.