Fatherwheels
Addicted to ArboristSite
Did you take a whole saw apart without doing a pressure and vac test to determine
if you actually had a leak, I sure hope not.
if you actually had a leak, I sure hope not.
Dolmar 421 crank seal, bearing removal
- Thread starter redhawk23
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- dolmar 421 seals
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redhawk23
ArboristSite Operative
I had a leak, not sure if it was the cause of my problem but it wouldn’t hold pressure
Fatherwheels
Addicted to ArboristSite
@fordf150 can you get the crank seals and bearings for the EA4300 / Dolmar 421,
the OP can not get the seals and has bearings on backorder, what is the situation
with the above parts availability.
redhawk23
ArboristSite Operative
The seals come with the bearings and they have been discontinued.
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Gone fishing
So, how does the seals and bearings look like? you got a picture?
I repaired an old Red for a neighbour and I had to modify standard seals to make them fit, the old 50cc accelerated and screamed like there was no tomorrow.
I repaired an old Red for a neighbour and I had to modify standard seals to make them fit, the old 50cc accelerated and screamed like there was no tomorrow.
redhawk23
ArboristSite Operative
Tomos770
ArboristSite Guru
Can you pry that seal off the bearing? That we can see it from "the dark side of the moon" side? 
We are trying to help you here...but you are constantly trying to make that task difficult for us....
We are trying to help you here...but you are constantly trying to make that task difficult for us....
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Gone fishing
Who told you they have been discontinued?
Anyway, I recently got some parts for my EA3200 from this site, the parts was sendt directly from Germany.
The EA4300 crank ball bearing/seal is nr.68 at the parts diagram, seems pretty much available to me:
https://www.partshopdirect.co.uk/makita-ea4300f-outdoor-petrol-chainsaw-spare-parts-s18867/https://www.partshopdirect.co.uk/makita-ball-bearing-6201-p211494-6/
redhawk23
ArboristSite Operative
He has already posted in your other thread. Sometimes spare parts can be found in Europe and other countries long after they are discontinued, NLA , on the American side of the big pond. Some sellers will ship across the ocean to this side while others will not, then there is the language differences that can cause confusion. I have bought parts from Germany on a few occasions, some went smooth while others were problematic. It may prove out that they can and will ship them , only contacting them will tell. I for one still believe they could be found on this side if some diligence searching was put to use.
redhawk23
ArboristSite Operative
I emailed them
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Gone fishing
Well this is a UK shop, as far as I recall they have the english language in United Kingdom - not too different from the American.
It don't seem to me they have a storage of parts, since I got my parts sendt directly from Germany (Makita/Dolmar).
They are probably just distributing parts directly from the vendor, something the name "partshopdirect" should indicate.
And they have a buy button for every part available, so if you know what you want I guess you don't have to talk to anyone at all.
redhawk23
ArboristSite Operative
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Gone fishing
Yes, I understand. You are a the son of an Italian mafiaboss yes 
Joke aside, to ask is never a bad thing. Good luck with your project, I love my EA3200 better than chainsaws twice its cost.
Joke aside, to ask is never a bad thing. Good luck with your project, I love my EA3200 better than chainsaws twice its cost.
redhawk23
ArboristSite Operative
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Gone fishing
No other advice from me, I was a bit worried there that the Dolmar 421 was a different saw than what I was referring to.
I had a few bottles of old grape juice this christmas and it seems they may have fermented a little, I hope I didn't insult anyone.
But if you do get your parts, that's good news I would guess. Crank seals is what kills an old or much used saw, and if you replace them - you have a really good saw for yet another life time.
redhawk23
ArboristSite Operative
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Gone fishing
When you did run the saw, what was the symptoms?
I'm asking because the saw should last about 50 years as it is, dont change whats perfectly run in as is.
I'm asking because the saw should last about 50 years as it is, dont change whats perfectly run in as is.
redhawk23
ArboristSite Operative
In retrospect I’m wondering if I had a winter gas problem: the saw started and quit. I tested everything and discovered the seals leaked. I’ve been told that leaking seals shouldn’t have caused the problem but here I am with the saw torn apart. I have considered putting it back together with the old bearings and seals.
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Gone fishing
If the crank seals are worn out, the saw will run at full rpm if you rich the hi carb setting, but you will never get it to run at idle.
What happens is that the engine gets false air without gas because it is not coming through the carburetor. At full rpm it 's ok if you rich the blend enough but at idle its all too delicate to work like it should.
If the piston and rings looks alright thats like changing your experienced winning team for snot kid that won't do what you want.
Don't change anything that doesn't need to be changed.
What happens is that the engine gets false air without gas because it is not coming through the carburetor. At full rpm it 's ok if you rich the blend enough but at idle its all too delicate to work like it should.
If the piston and rings looks alright thats like changing your experienced winning team for snot kid that won't do what you want.
Don't change anything that doesn't need to be changed.
