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The 4A Engine Rebuild


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Hi Folks,

I was going to do a rebuild of my engine last January but surprisingly it was cold. So it didn't happen.

Last Monday the Grand build started in earnest.

Firstly the TR4 was moved out of its home of the last five years and is now holidaying around the corner in another garage.

 

Apart from a fairly simple rebuild I am also going to tidy up the engine bay - a slap of paint, polish the rust and perhaps a bit of bling :o

 

Monday afternoon was spent taking some of the engine oarts off - alternator, Carbs and manifold, radiator etc.

Tuesday got more interesting as I unraveled the wiring loom.

Over the years I've added circuits and whizzy things and the wiring had been cobbled together. I had installed a bank of three fuse boxes that work well but the wiring is a bit ratty - so I have a cunning plan.

 

Today I removed the last of the bits nailed down - the M/cylinder holder/bracket. The area around is a bit manky to say the least.

 

I noticed that quite a lot of self tapping screws had been used here and there. So, out with these and in with rivnuts.

Stuart has been going on about rivnuts for ages so this summer I bought a kit. Since then I've been rivnutting everything - if it doesn't move it will have a rivnut.

 

One of the bees I have in my bonnet (I do not actually have any bees or a bonnet) is ridding the engine bay of bits that needn't be there.

Earlier this year I mod'd the tacho to be electric so getting rid the drive cable.

I now have my eye on the wiring loom. Sending it out through the offside kick panel and along the space between the inner and outer wing feeding wires into the engine bay where needed.

The mega fuse box will also reside in this space and be accessed through a little trap door in the inner wing - apprx where the racey boys put that cooling grill in the wing.

 

I think the next few weeks will be most interesting. What could possibly go wrong. :blink:

 

 

Roger

 

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Hi Folks,

in my quest to rebuild the engine I have removed the nearside wing :blink: .

This has revealed the wing in general is in good order so only a little bit of repair work and cleaning.

 

However the sill is in a sorry state.

Not sure why but the nearside sill has always presented problems. I have topped up the waxoyl a few times

I had to do an 'iffy' repair a couple of years ago at the back end. and I found that the waxoyl was parting company with the inside of the sill in sheets - thus removing any protection. It looks like the same thing was going on at the front.

I think I will be replacing the sill before it gets back on the road :o

 

I've found a couple of seams in the engine bay where the dreaded rust is getting in. So a few areas of metal replacement. In general not too bad for 18 years and 170,000 miles heavy use.

 

I shall remove the inside of the cra this afternoon and get the exhaust and propshaft off.

 

Nothing happening till next Monday now - busy week-end.

 

I wonder how long this one will take. !!!!!

 

Roger

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Hi Tim,

I follow your line.

The TR4 was a three month rebuild that is now in its 5.75 year.I( have learnt

I have learnt - The TR4A is only having having a three week refurb - so this should take less than 5 months.

 

Seriously, the engine build will take a month with lots of gaps so the body repairs/painting/tarting up will fit in as and when (probably).

 

As for madness laying anywhere - been there done it. Completely Jacobs.

 

Roger

Edited by RogerH
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I did a similar thing............decided to change the fan belt,then noticed the front valance was in need of a quick repair..........12 years later and a total rebuild,not to mention 2 children and a house move!

I will check this post in 5 months time!

Good luck!

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This is classic car repair

What I call going backwards:

You set out to do something and find that something else has to be done first, you spend all day/week/month doing that to find that you are still behind where you first started

However ...if you keep at it you do get there in the end.

That is what keeps us going like faith to religious people

May the force be with you

Michael

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Robin, no comment.

Edited by SuzanneH
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Hi Folks,

I got back on the car again today. I managed to insert 2 M5 rivnuts.

 

have you ever had one of those days when things don;t go quite right.

I needed to insert 2 M5 rivnuts - dead easy I hear you say. Well, yes. In principle you insert the rivnut squeeze the handles and bingo.

 

Except on my rivnut pliers things were starting to go awry. That's the TRouble with chocolate tools.

These pliers are not expensive - £25 or there abouts.

 

Basically these pliers work very simply. One handle of the pliers is the base that things react against. The other handle pivots and a pair of 'rollers' lift up the lifting mandrel to do the squishing. The only problem (actually lots of problems) is that the rollers and the lifting thing did not align very well - just a slight over lap.

This overlap didn't exist for long.

 

Now the duff pliers were/are too good to throw away.

So it was dismantled, the rollers turned upside down to give new metal, The chewed up lifting things was machined on the lathe to be 'chewed no longer' and then a spacer fitted to replace the missing metal. The pliers were then squeezed together so that the rollers overlapped the lifting thing as much as possible.

 

This transformed the pliers from scrap into a tool and then some. Why couldn't the manufacturers do this.

 

Tomorrow, who knows. Perhaps a new handle for the broom.

 

Roger

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In the balance of things effecting a repair is always more satisfying than just replacing something at £xx +vat

TR are a hobby and the net result should be happy customers and a good repair does give a satisfying glow

besides if you actually finished a car .. well what would you do?

Michael

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+1 fixing things is great !

I often annoy Pauline by mending something she wanted to throw away, & replace with a newer version which would not be made to last like the old one was :wub:

 

Bob.

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Hi Folks,

I mentioned in an earlier post that when I took the front nearside wing off I found a large rust hole in the sill :(

Well, there is a silver lining - that hole was not lonely - I found a big rust hole in the associated place on the lower portion of the wing :(:(:blink:

 

This morning I separated the propshaft from the gear box and removed the silencer - and then it rained.

 

This afternoon I will make a start on doing a repair on the wing - hopefully I will not require a complete lower section but it is looking iffy.

Tomorrow morning I will be near to lifting the engine/GB out of the car IF it stops raining.

Come rain or shine I have plenty of work either way.

 

Roger

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