What's on your bench today?

[JAMIE1]

Novel way of splitting the crankcase, always a loathsome job, are you sure that plastic bag isn't some sort of tank sealer - bit of a strange one!

 

It's the only way i split them, ive never known another way. Didnt really look at the bag closely but it looked like a freezer bag with the white patches where your suppost to write whats in it and the date. Will inspect closer tomorrow when the cases go into the parts washer then onto grit blast.

[spudulike]

Been rebuilding a Stihl 024 for a neighbour that wants a saw for firewood, found the lower recoil lug and case had been broken so welded up a new piece as in the first picture and then rivited and JB welded it in place before tapping and spraying it, looks liek a solid repair:thumbup:

 

Once I get 5 minutes to play I will be experimenting with the ported 357 with various bars, chain pitch and rim drives - Rob D has kindly sent over a new bar for test - 3/8 18" so will be interested to see how it performs against a standard 0.325 and a Micro lite Oregon - the 18" microlite and a couple of chains were also purchased from Chainsawbars.co.uk for a very reasonable price:thumbup:

[Ashes_Firewood]

Quick update re: Husky 372xp that Spud looked over for me. Used it for the first time for an hour or so yesterday after I finally got a bar & chain for it...

 

Bit of a step up from my 40cc Husky. It's a beast!

[spudulike]

Quick update re: Husky 372xp that Spud looked over for me. Used it for the first time for an hour or so yesterday after I finally got a bar & chain for it...

 

Bit of a step up from my 40cc Husky. It's a beast!

 

Nice clean saw that is!

 

Had a mixed weekend, hedge trimmer lost compression and split a fuel primer button, pole cutter damaged a union and I never finished the job

 

Got to fix them now....Grrreeeaaaattttt:lol:

[spudulike]

Been fixing my busted pole cutter and hedge trimmer. I was cutting back my hedge last Thursday and the pole cutter pole union let loose so I did a quick repair with some JB weld and then found it was so good I couldn't separate the poles - shows how good the stuff is!

 

The hedge trimmer became difficult to start when hot - seemed to be down on compression, it is an old Echo. A bit heavy but will go through branches as thick as your thumb!!

 

Whipped off the cylinder, all looked good including the ring and piston so dropped out the base gasket, got carried away and did a mild porting job and got compression of 160psi now and it rips:thumbup:

 

Good to see the thread at nearly 50,000 views:biggrin:

[MATTMOSS]

Spud what do you think about this cylinder? I know its hard to judge from a photo, I can feel light scores and thats after ive give it a rub with fine wet and dry and had some caustic on it, are the dark marks worn thru the plating or deposits on top do u rekon? bin it or should i do a bit more?

[spudulike]

Spud what do you think about this cylinder? I know its hard to judge from a photo, I can feel light scores and thats after ive give it a rub with fine wet and dry and had some caustic on it, are the dark marks worn thru the plating or deposits on top do u rekon? bin it or should i do a bit more?

 

Mmm, that looks like it has got pretty hot, it is unusual for the inlet side to mark up like that but have had one saw that whent all the way round. It didn't look nice but it was smooth and ran up at 150psi after rebuild.

 

I reckon there is still transfer on there, try a bit of abrasion with wet and dry and use a bit of acid on it until it stops fizzing.

 

It may be worth using some slightly more coarse paper to clean it up further. Don't get too hung up on its looks, it is how smooth the thing feels - scores are generally thin and indented in to the cylinder. If bad they will fiz along their length as the acid bites in to the aluminium under the Nikasil plating!

 

Get it smooth before fitting the piston.

 

Can't remember the history but ensure you know why it failed and correct it before you run the saw up.

[Chrisy B]

I know you probably get fed up of replying to everyone spud, but just wondered what type of vacuum/pressure tester you used.

 

Seen a Sealey one on ebay that I didnt think looked bad your thoughts?

 

Sealey VS403 Vacuum & Pressure Test/Bleed Kit | eBay

 

Cheers

Chris

[JAMIE1]

 

Seen a Sealey one on ebay that I didnt think looked bad your thoughts?

 

Sealey VS403 Vacuum & Pressure Test/Bleed Kit | eBay

 

Cheers

Chris

 

Thats the one we use and its been a great bit of kit, slightly pricey at £79.99 i think we paid £59.99 4 years ago, but if ours got damaged i wouldnt think twice at shelling out for another. The black plastic connectors cover a full range of sizes and can be cut easily with a stanley knife to increase their bore size. Never tried it for bleeding brakes though.

[spudulike]

Mine is the brass bodied Sealey one, decent bit of kit - it will only do vac testing but does it very well. You need to also consider pressure testing as well - different components and designs show leakage better under pressure or vacuum sometimes - the Husky Rancher inlet manifold was a classic case of this - perfect under vacuum but leaked badly under pressure!