Crank Bearing size variations.

Marshall · Post by **Marshall** » Wed May 05, 2010 4:43 am

Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
The con rod big end should have enough material to take a regrind.
I have posted two photos.
Has anybody tried this before ?

misterpoopoohead · Post by **misterpoopoohead** » Wed May 05, 2010 10:02 am

Seriously? You have the 600 Hondamatic?
Very rare.
Kev Sent from my Verizon Wireless BlackBerry
From:
"Marshall"
Date:
Wed, 05 May 2010 11:42:40 -0000
To:

Subject:
[2cylinderhondas] Crank Bearing size variations.
Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
The con rod big end should have enough material to take a regrind.
I have posted two photos.
Has anybody tried this before ?

Josh · Post by **Josh** » Wed May 05, 2010 10:56 am

It would be awesome if you could post some pictures of your engine.

--- In
2cylinderhondas@yahoogroups.com
, "Marshall" wrote:
> Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
> The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
> My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
> I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
> The con rod big end should have enough material to take a regrind.
> I have posted two photos.
> Has anybody tried this before ?

Marshall · Post by **Marshall** » Wed May 05, 2010 11:39 am

Kev, I live in The United Kingdom. I went & collected The Hondamatic Engine from the seller in Lancaster, Northern England last week. I am again driving up there to also tow back a complete Hondamatic car..... it's bodywork is in a poor state but mechanically complete with 54,000 miles on the clock. Cost of car & spare engine was �150

--- In
2cylinderhondas@yahoogroups.com
, misterpoopoohead@... wrote:
> Seriously? You have the 600 Hondamatic?
> Very rare.
> Kev
> Sent from my Verizon Wireless BlackBerry
> -----Original Message-----
> From: "Marshall"
> Date: Wed, 05 May 2010 11:42:40
> To: Subject: [2cylinderhondas] Crank Bearing size variations.
> Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
> The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
> My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
> I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
> The con rod big end should have enough material to take a regrind.
> I have posted two photos.
> Has anybody tried this before ?

Marshall · Post by **Marshall** » Wed May 05, 2010 11:51 am

Josh, I will take photos of the Hondamatic Car I shall soon be collecting.

--- In
2cylinderhondas@yahoogroups.com
, "Josh" wrote:
> It would be awesome if you could post some pictures of your engine.
> --- In
2cylinderhondas@yahoogroups.com
, "Marshall" wrote:
> > Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
> > The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
> > My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
> > I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
> > The con rod big end should have enough material to take a regrind.
> > I have posted two photos.
> > Has anybody tried this before ?

CHEYENNE FLETCHER · Post by **CHEYENNE FLETCHER** » Wed May 05, 2010 12:13 pm

It would probably work but you will need perfectly sterile environment when welding.

> ----- Original Message -----
> From:
> Josh
> To:
> 2cylinderhondas@yahoogroups.com
> Sent:
> Wednesday, May 05, 2010 10:56
> AM
> Subject:
> [2cylinderhondas] Re: Crank
> Bearing size variations.
> It would be awesome if you could post some pictures of your > engine.
> --- In
> 2cylinderhondas@ yahoogroups. com
> ,
> "Marshall" wrote:
> > Just my
> luck. I've bought an N600 Automatic Engine less pistons, barrel & > head.
> > The left hand con rod big end has been badly damaged,
> the rest of the engine looks in very good condition & seems as though the > con rod failed very early in it's life.
> > My bad luck
> has shown up in the form of this particular engine having the smaller big end > dimension. Both spline diameter & big end journal diameter seemed to have > been the same @ 34mm .......... no chance of a regrind.
> > I'm
> not giving up. I'm going to try & build up the journal with small > "buttons" of weld, regrind & press fit an inner roller bearing > shell.
> > The con rod big end should have enough material to take a > regrind.
> > I have posted two photos.
> > Has
> anybody tried this before ?

CHEYENNE FLETCHER · Post by **CHEYENNE FLETCHER** » Wed May 05, 2010 12:14 pm

I want one they must be real cool.

> ----- Original Message -----
> From:
> misterpoopoohead@...
> To:
> 2cylinderhondas@yahoogroups.com
> Sent:
> Wednesday, May 05, 2010 9:53
> AM
> Subject:
> Re: [2cylinderhondas] Crank
> Bearing size variations.
> Seriously? You have the 600 Hondamatic?
> Very rare.
> Kev
> Sent from my Verizon Wireless BlackBerry
> From:
> "Marshall" marshall_waugh@ yahoo.com
> Date:
> Wed, 05 May 2010 11:42:40 -0000
> To:
> 2cylinderhondas@ yahoogroups. com
> Subject:
> [2cylinderhondas] Crank Bearing size variations.
> Just my luck. I've bought an N600 Automatic Engine less pistons, barrel > & head.
> The left hand con rod big end has been badly damaged, the
> rest of the engine looks in very good condition & seems as though the con > rod failed very early in it's life.
> My bad luck has shown up in the
> form of this particular engine having the smaller big end dimension. Both > spline diameter & big end journal diameter seemed to have been the same @ > 34mm .......... no chance of a regrind.
> I'm not giving up. I'm going to
> try & build up the journal with small "buttons" of weld, regrind & > press fit an inner roller bearing shell.
> The con rod big end should have
> enough material to take a regrind.
> I have posted two photos.
> Has
> anybody tried this before ?

misterpoopoohead · Post by **misterpoopoohead** » Wed May 05, 2010 7:43 pm

Awesome! I suppose the Hondamatic may have been less rare in the UK. I seriously doubt you can get parts for them. Pictures on the group would be much appreciated.
Kev Sent from my Verizon Wireless BlackBerry
From:
"Marshall"
Date:
Wed, 05 May 2010 18:34:12 -0000
To:

Subject:
[2cylinderhondas] Re: Crank Bearing size variations.
Kev, I live in The United Kingdom. I went & collected The Hondamatic Engine from the seller in Lancaster, Northern England last week. I am again driving up there to also tow back a complete Hondamatic car..... it's bodywork is in a poor state but mechanically complete with 54,000 miles on the clock. Cost of car & spare engine was �150

--- In
2cylinderhondas@ yahoogroups. com
, misterpoopoohead@ ... wrote:
> Seriously? You have the 600 Hondamatic?
> Very rare.
> Kev
> Sent from my Verizon Wireless BlackBerry
> -----Original Message-----
> From: "Marshall"
> Date: Wed, 05 May 2010 11:42:40
> To: Subject: [2cylinderhondas] Crank Bearing size variations.
> Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
> The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
> My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
> I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
> The con rod big end should have enough material to take a regrind.
> I have posted two photos.
> Has anybody tried this before ?

Marshall · Post by **Marshall** » Thu May 06, 2010 4:37 am

It will be a great shame if I cannot repair the crank. The automatic engine has a different drive end on the crank compared to the manual engine.

--- In
2cylinderhondas@yahoogroups.com
, misterpoopoohead@... wrote:
> Awesome! I suppose the Hondamatic may have been less rare in the UK. I seriously doubt you can get parts for them. Pictures on the group would be much appreciated.
> Kev
> Sent from my Verizon Wireless BlackBerry
> -----Original Message-----
> From: "Marshall"
> Date: Wed, 05 May 2010 18:34:12
> To: Subject: [2cylinderhondas] Re: Crank Bearing size variations.
> Kev, I live in The United Kingdom. I went & collected The Hondamatic Engine from the seller in Lancaster, Northern England last week. I am again driving up there to also tow back a complete Hondamatic car..... it's bodywork is in a poor state but mechanically complete with 54,000 miles on the clock. Cost of car & spare engine was �150
> --- In
2cylinderhondas@yahoogroups.com
, misterpoopoohead@ wrote:
> > Seriously? You have the 600 Hondamatic?
> > Very rare.
> > Kev
> > Sent from my Verizon Wireless BlackBerry
> > -----Original Message-----
> > From: "Marshall"
> > Date: Wed, 05 May 2010 11:42:40
> > To: > Subject: [2cylinderhondas] Crank Bearing size variations.
> > Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
> > The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
> > My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
> > I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
> > The con rod big end should have enough material to take a regrind.
> > I have posted two photos.
> > Has anybody tried this before ?

misterpoopoohead · Post by **misterpoopoohead** » Fri May 07, 2010 7:09 pm

Well. Your best bet is to locate one somewhere. It is possible. Keep networking. I'm envious! :o) Sent from my Verizon Wireless BlackBerry
From:
"Marshall"
Date:
Thu, 06 May 2010 11:36:51 -0000
To:

Subject:
[2cylinderhondas] Re: Crank Bearing size variations.
It will be a great shame if I cannot repair the crank. The automatic engine has a different drive end on the crank compared to the manual engine.

--- In
2cylinderhondas@ yahoogroups. com
, misterpoopoohead@ ... wrote:
> Awesome! I suppose the Hondamatic may have been less rare in the UK. I seriously doubt you can get parts for them. Pictures on the group would be much appreciated.
> Kev
> Sent from my Verizon Wireless BlackBerry
> -----Original Message-----
> From: "Marshall"
> Date: Wed, 05 May 2010 18:34:12
> To: Subject: [2cylinderhondas] Re: Crank Bearing size variations.
> Kev, I live in The United Kingdom. I went & collected The Hondamatic Engine from the seller in Lancaster, Northern England last week. I am again driving up there to also tow back a complete Hondamatic car..... it's bodywork is in a poor state but mechanically complete with 54,000 miles on the clock. Cost of car & spare engine was �150
> --- In
2cylinderhondas@ yahoogroups. com
, misterpoopoohead@ wrote:
> > Seriously? You have the 600 Hondamatic?
> > Very rare.
> > Kev
> > Sent from my Verizon Wireless BlackBerry
> > -----Original Message-----
> > From: "Marshall"
> > Date: Wed, 05 May 2010 11:42:40
> > To: > Subject: [2cylinderhondas] Crank Bearing size variations.
> > Just my luck. I've bought an N600 Automatic Engine less pistons, barrel & head.
> > The left hand con rod big end has been badly damaged, the rest of the engine looks in very good condition & seems as though the con rod failed very early in it's life.
> > My bad luck has shown up in the form of this particular engine having the smaller big end dimension. Both spline diameter & big end journal diameter seemed to have been the same @ 34mm .......... no chance of a regrind.
> > I'm not giving up. I'm going to try & build up the journal with small "buttons" of weld, regrind & press fit an inner roller bearing shell.
> > The con rod big end should have enough material to take a regrind.
> > I have posted two photos.
> > Has anybody tried this before ?