Stroking a Dolmar 7900

[Mastermind]

5.895"

 

[Mastermind]

What's the Dolmar crank measure?

 

[Tractorsaw1]

Sorry I had that picture on my phone - I'm in hunting mode so will be next week before I can measure that - You will probably have yours back together again before that

 

[Mastermind]

Sorry I had that picture on my phone - I'm in hunting mode so will be next week before I can measure that - You will probably have yours back together again before that

I've got one on my bench.......

 

[Fruecrue]

I will get the Dolmar crank measured soon, on my way home now.

 

[Fruecrue]

How about width across the lobes boss?

 

[Fruecrue]

5.816” end to end.
1.128” across the lobes.

That’s 79 thousandths difference end to end or about 2.007 mm.

 

[Tractorsaw1]

From fly thread end to clutch stub?

Did you check this? Overall length is not a problem

 

[Fruecrue]

Did you check this? Overall length is not a problem

Randy measured a solo crank, I measured the dolmar. We found the Solo to be about .080” longer.

 

[Tractorsaw1]

sorry I thought that wasn't the end to end you were asking for

 

[Mastermind]

Width of lobes 1.104"

 

[Mastermind]

Width of lobes 1.104"

Which is within a few thousandths of the Dolly crank.

 

[Fruecrue]

We have to get together and find where that 2mm difference is.

 

[Mastermind]

 

[Mastermind]

One of the stubs must be longer. I'll measure....but first, I eat !!!!

 

[Fruecrue]

Hmmmm....

 

[Mastermind]

I bet some of it is here. .800"

 

[Fruecrue]

Hmmmm.....

 

[Mastermind]

Hmmmm....
View attachment 149177

Strange. I've checked eleventy billion times.

 

[mettee]

She slipped, at least thats what it looks like on the rod journal

Keeping going guys