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JAP 5 First Project

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Post by Tom@Crewe Wed Mar 11 2020, 19:45

Well here it is My Dad's New Hobby and First Stationary Engine, myself and brother are helping along with a couple of keen under 5's.

The JAP 5 was advertised as Non-Runner but good project £80 we all went off and looked at it and got it for £60
A couple of issue jumped out on the unloved engine, Petrol cap is JAP but has bigger thread then the tank. the throttle link from carburettor to regulator is half missing and broken. (Can be seen in last picture)
It had a good spark and compression.

Couple of days later my dad and brother tinkered, set the gaps, fuelled it up, wound it up a few dozen times and it fired up (a little rough and smoky)
Dad now plans to make a temporary throttle link from carburettor to regulator, clean it a bit more and fire it up again before a full, every nut ad bolt strip down.

JAP 5 First Project 2020-011
JAP 5 First Project 2020-012 JAP 5 First Project 2020-013 JAP 5 First Project 2020-014 JAP 5 First Project 2020-015 JAP 5 First Project 2020-016

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Post by blue cat Thu Mar 12 2020, 18:51

Code letter V dates this engine to 1956.

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Post by Tom@Crewe Sat Mar 14 2020, 08:39

blue cat wrote:Code letter V dates this engine to 1956.

Thanks I was wondering.

5 V / 81961 / 1

the 5 is it a JAP 5, thanks to blue cat V is 1956, 81961 did they start at 0 so 81960 built they year before Dad's and I believe the last 1 is a mod number did this start a 0 so whats the 1 mod?

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Post by Tom@Crewe Mon Mar 23 2020, 08:32

Still looking for carb link, Dad still wants to get it running a bit better before full strip.
We found a link on line £48 + vat (20%) + Postage, more than we got the whole engine for.
We are still looking, thought we would look in spares at Steam Fairs but they may not be any till later in the year, if then.

We want to make a temporary one but don't know the centres, Can any kind person help.

JAP 5 First Project Link_p11


Last edited by Tom@Crewe on Mon Mar 23 2020, 14:29; edited 1 time in total (Reason for editing : spelling)

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Post by dunitrong Mon Mar 23 2020, 10:50



Is yours missing or broken ? I have a 4/3 (yes i know not the same ) and mine measures 3 1/8 ".Hope this helps.

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Post by Tom@Crewe Mon Mar 23 2020, 11:24

dunitrong wrote:  

Is yours missing or broken ?

Yes it missing the top fixing (see last picture of first post on this page)

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Post by Tom@Crewe Sat Sep 26 2020, 08:06

Quite a bit done.

JAP 5 First Project 50384169068_e61fbd4f4e_zJAP 5 First Project 50384865581_6fa8829355_zJAP 5 First Project 50384168813_133ce0bac9_z

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Post by dunitrong Sat Sep 26 2020, 09:05

That looks nice! Love the paint. I have J A P like that on a Motorcart.It all needs sorting though.  Arthur

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Post by Woodsman Sat Sep 26 2020, 09:09

Looking very tidy. Have you had it running?

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Post by Tom@Crewe Sat Sep 26 2020, 09:23

Woodsman wrote:Looking very tidy. Have you had it running?

Only before strip down. It ran rough and smoked, but did run.

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Post by Woodsman Sat Sep 26 2020, 11:14

Tom@Crewe wrote:
Woodsman wrote:Looking very tidy. Have you had it running?

Only before strip down. It ran rough and smoked, but did run.

Excellent!  I always try to get some sort of life before spending a lot of time and effort (and cash!) on the cosmetic side.
BTW What's on the far end of that exhaust pipe?

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Post by Tom@Crewe Sat Sep 26 2020, 12:00

Woodsman wrote:
BTW What's on the far end of that exhaust pipe?

Nothing

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Post by Tom@Crewe Sat Sep 26 2020, 12:04

Cover now repaired and ready to paint

JAP 5 First Project 50385129522_5fc39de9bc_zJAP 5 First Project 50384251733_8978ba7b2e_z

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