Chainsaw Repair

How To Basics - Carb Fixes + Mods - IPL and Service Manuals => How To Basics and Fixes => Topic started by: KilliansRedLeo on January 02, 2014, 12:22:17 pm

Title: Looking for gasket material
Post by: KilliansRedLeo on January 02, 2014, 12:22:17 pm
Looking for non metallic gasket material suitable for cylinder base gaskets. I am getting tired of making them out of copper! I need .020 .040 .050 and .060. Anyone have any ideas?
Title: Re: Looking for gasket material
Post by: Cut4fun . on January 02, 2014, 01:09:02 pm
Maybe try auto store local for the rolls of gasket material? Take calibers get measurements.    http://www.oreillyauto.com/site/c/search/Gasket+Material/N0488/C0137.oap

Allstate Gasket   http://www.allstategasket.com/info_gasket_material.asp

More ideas  http://www.mcmaster.com/#gasket-sheets/=q2tlxn


Title: Re: Looking for gasket material
Post by: jmester on January 02, 2014, 07:34:24 pm
 I have used different types of card stock paper,index cards, creal boxes and stuff like that. I have had good luck with it like that. But all these are less then .020.
Title: Re: Looking for gasket material
Post by: 660magnum on January 02, 2014, 07:56:01 pm
That O'Reilly link show nothing about thickness or composition of the material. About all it says is that they carry some gasket material.

I'm sure O'Reilly has it too but several years ago at NAPA I bought some nice 1/8" thick composition Kevlar gasket material for my air compressor head gasket. It was hard cutting that stuff but it has lasted all these years so I know it can be done.

For carb gaskets etc I use the card stock and cardboard cereal boxes etc like in the post above.

I bought some gasket material at Discount Drug Mart that was just terrible. The harry mess would not cut crisp and clean. It made worthless fuzzy gaskets.
Title: Re: Looking for gasket material
Post by: Al Smith on January 02, 2014, 07:56:51 pm
The cardboard from a case of soft drinks,beer whatever .The cover of National Geographic .Any relatively stout paper will work . The crankcase does not  put out the much pressure .
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 02, 2014, 10:50:05 pm
Maybe try auto store local for the rolls of gasket material? Take calibers get measurements.    http://www.oreillyauto.com/site/c/search/Gasket+Material/N0488/C0137.oap

Allstate Gasket   http://www.allstategasket.com/info_gasket_material.asp

More ideas  http://www.mcmaster.com/#gasket-sheets/=q2tlxn




Thank you Kevin, Allstate had exactly what I was looking for!
Title: Re: Looking for gasket material
Post by: jmester on January 02, 2014, 11:06:43 pm
Killians so what type of material did you get? What kind do you think is close to oem gasket material. Checked out there site and they had a whole lot of options.
Title: Re: Looking for gasket material
Post by: 660magnum on January 03, 2014, 02:56:18 am
The local auto parts store may very well have what you are looking for after you see, measure, and feel it, Allstate and McMaster-Carr really have it all in the way of bulk gasket material.

I usually cut the inside holes and put the two parts together and use the parts as a guide to make the bolt holes.

I then trim the outside off with the gasket between the parts. I use the castings as a guide to cut off the material.
Title: Re: Looking for gasket material
Post by: 1manband on January 03, 2014, 04:58:05 am
....little late with a reply.  could not find my old catalogs, but fel-pro, mr gasket, etc have different thickness sheets available.  tractor supply has rolls of cork/rubber (very thick), and some gray fiber (thin) the last time i was there.

summit racing or jegs.  http://www.jegs.com/webapp/wcs/stores/servlet/KeywordSearchCmd?storeId=10001&catalogId=10002&langId=-1&Ntk=all&Jnar=0&itemPerPage=90&Ne=1%2B2%2B3%2B13%2B1147708&searchTerm=+++++++++++++++++++++++++++gasket+sheet

still have some sheets of copper around here somewhere, if you cant find what you need.

regards
-joe

Title: Re: Looking for gasket material
Post by: Al Smith on January 03, 2014, 06:25:23 am
You have a zillion options .Permatex number 2,Loctite gasket eliminater,Yamaha bond ,Loctite 5900 and 5 million more .< slight exageration  ;)
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 03, 2014, 08:53:28 am
Well, the saw I'm doing, Husqvarna 262XP with a 365 Special piston cannot go without a base gasket. The 365 piston is 0.060 taller than the stock 262 piston. I am trying to do this without cutting the squish band. So I will need a base gasket to get the squish close to 0.020. Usually I would cut a gasket out of 110 annealed copper precision shim stock but do not have the patience to do that for just 1 saw.
Title: Re: Looking for gasket material
Post by: Al Smith on January 03, 2014, 10:49:11 am
Well you certainly can't stuff 60 thou in a 40 thou hole. I see said the blind man to his deaf wife as he picked up a hammer and saw .
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 03, 2014, 11:34:04 am
My sentiments exactly! It is an experiment that both Farmboy and I have been noodling on for some time. We both like the old 262XP even though they are getting long in the tooth. We have both been looking for ways to breathe a little more life into the old 262XP and there are still a lot of people out there that have a 261 and would love to have a 262XP! This project is for a tutorial I will be publishing on Chainsaw Repair when complete.

It is about converting your 261 to a 262XP with some mods thrown in, MM, HDA-87 carburetor and the 365 Special piston. I am attempting to do the entire thing without custom machine work, and without a pile of factory tools. Us old guys are not the target audience for this however a person new to chainsaw repair/modification is.

Tim
Title: Re: Looking for gasket material
Post by: Al Smith on January 03, 2014, 12:45:56 pm
Sounds like good project to me .Like I've said before you'll never really know unless you do it to find out .
Title: Re: Looking for gasket material
Post by: Cut4fun on January 03, 2014, 03:21:01 pm
My sentiments exactly! It is an experiment that both Farmboy and I have been noodling on for some time. We both like the old 262XP even though they are getting long in the tooth. We have both been looking for ways to breathe a little more life into the old 262XP and there are still a lot of people out there that have a 261 and would love to have a 262XP! This project is for a tutorial I will be publishing on Chainsaw Repair when complete.

It is about converting your 261 to a 262XP with some mods thrown in, MM, HDA-87 carburetor and the 365 Special piston. I am attempting to do the entire thing without custom machine work, and without a pile of factory tools. Us old guys are not the target audience for this however a person new to chainsaw repair/modification is.

Tim

Sounds sweet.  Cant wait to see the posting in the future.   
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 03, 2014, 11:17:28 pm
Will not be too long now, just got message from HVA, the last of the necessary parts were shipped today! So, away we go, only one problem, I can do the modifications faster than I can type!
Title: Re: Looking for gasket material
Post by: Cut4fun . on January 03, 2014, 11:59:57 pm
I bet.  I couldnt imagine the time involved doing that.
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 04, 2014, 11:58:16 am
Well now I have to prepare for the 365 Special piston being a bust. It is an experiment after all, replacing the windowed 262XP piston with a slab sided 365 Special slug. However, the 365/372 saws both had closed ports as does the 262 and they run fine. I have another 261 waiting in the wings and ordered enough parts to do both so perhaps I should build two saws exactly alike except for the piston then we could run em both and see which we like better.

I will have to PM Shep and see what he thinks but right now I'm sorta liking that idea. What do the rest of you think?
Title: Re: Looking for gasket material
Post by: 660magnum on January 04, 2014, 12:08:39 pm
The 262 has the old school Mahle single transfer closed ports like the older Dolmar 6800 and Stihl 066. That is why it has the window piston. The bottom of the transfers is in the cylinder wall.

The Husqvarna 365 has the bottom transfers in the base flange of the cylinder and does not need a window piston.
Title: Re: Looking for gasket material
Post by: Cut4fun . on January 04, 2014, 12:17:33 pm
Well now I have to prepare for the 365 Special piston being a bust. It is an experiment after all, replacing the windowed 262XP piston with a slab sided 365 Special slug. However, the 365/372 saws both had closed ports as does the 262 and they run fine. I have another 261 waiting in the wings and ordered enough parts to do both so perhaps I should build two saws exactly alike except for the piston then we could run em both and see which we like better.

I will have to PM Shep and see what he thinks but right now I'm sorta liking that idea. What do the rest of you think?

I put a slab side BB372 piston in a 475 and it runs like a scalded dog.  OEM 475 uses a windowed piston.
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 04, 2014, 12:52:00 pm
Thanks Kevin and Jim, I knwew about the differences in the transfer ports. At one time Dolmar used a windowed piston in the 7900 then changed to a slab sided at some later point. I do not know if there were changes to the transfers to go along with this. The only pistons I can find for the 7900 now are the slab side, even if you try to order the windowed piston the part number superceedes to the slab piston.

Kevin had mentioned earlier the experience he had with using a slab sided piston and the results he had with it in a windowed piston saw. So that is what got us to thinking about the 365 piston. What the H#ll it is an experiment anyway, if it doesn't work I will throw a windowed 262 piston in it and away we go!
Title: Re: Looking for gasket material
Post by: 660magnum on January 04, 2014, 01:06:45 pm
The 7900 has the lower transfers in the base flange of the cylinder also. Therefor a windowed piston does not contribute to the transfer.
Title: Re: Looking for gasket material
Post by: Cut4fun . on January 04, 2014, 01:22:36 pm
The 262 has the old school Mahle single transfer closed ports like the older Dolmar 6800 and Stihl 066. That is why it has the window piston. The bottom of the transfers is in the cylinder wall.

The Husqvarna 365 has the bottom transfers in the base flange of the cylinder and does not need a window piston.

The 475 2077 505 2083 are single transfer like a 044 046 etc too. Using windowed piston.  The slab side BB372 worked great in the 475 single transfer I did.
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 04, 2014, 01:35:31 pm
Well, I guess we will find out! If it doesn-t work we haven't lost anything, just time and us old retired fa#ts have lots of time ::)!
Title: Re: Looking for gasket material
Post by: Cut4fun . on January 04, 2014, 01:45:48 pm
cylinder on LEFT 475 505 2077 2083.  cylinder on RIGHT 415 445 425.   

(http://i59.photobucket.com/albums/g289/doemaster789/PP505PP365JD800/475425004.jpg)
(http://i59.photobucket.com/albums/g289/doemaster789/PP505PP365JD800/475425005.jpg)
(http://i59.photobucket.com/albums/g289/doemaster789/PP505PP365JD800/475425006.jpg)
(http://i59.photobucket.com/albums/g289/doemaster789/PP505PP365JD800/475425008.jpg)
Title: Re: Looking for gasket material
Post by: 660magnum on January 04, 2014, 03:05:11 pm
I remember that 475 ran real well with the BB 372 piston.
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 04, 2014, 03:14:26 pm
Thanks guys! I had my doubts but given what Kevin just posted, I will still try for the 365 piston in one of the 261s and the 262 in the other.
Title: Re: Looking for gasket material
Post by: Cut4fun . on January 04, 2014, 07:58:32 pm
Come across some gasket material on Northwood saw too today.   http://northwoodsaw.com/store/index.php?l=search_list&s[search]=gasket+material&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0
Title: Re: Looking for gasket material
Post by: KilliansRedLeo on January 15, 2014, 10:10:52 am
Killians so what type of material did you get? What kind do you think is close to oem gasket material. Checked out there site and they had a whole lot of options.

I purchased 1/64 & 1/16 ASTM material from McMasterCarr will have to use two gaskets to get close to 0.080.
0.080 would have gotten me to 0.020 squish but will only be able to get to 0.078125 using a 1/64 & 1/16 pair of gaskets. Which will put me at 0.01875 squish. Will give it a try ans see if she blows up!