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View Full Version : Any problem with small engines that only use 2 bolts to bolt the cylinder?


Alan0354
09-17-2010, 03:56 PM
I notice a lot of the smaller engines like 21 to 24cc have only two bolts to bolt down the cylinder. Engines like Shindaiwa T231, Redmax 2501, Tanaka 21cc and Echo 21cc etc. all have only 2 bolts. Any issue of the cylinder mount crack and ruin the engine? I would think those use 4 bolts will spread the force to all 4 corners and less stress on the metal which is very brittle.

dutch1
09-17-2010, 07:46 PM
In the 7 years that I wrenched in a Shindiawa/Echo shop, I never noticed any more problems with a 2 bolt jug than with a 4 bolt jug.

Alan0354
09-17-2010, 10:14 PM
In the 7 years that I wrenched in a Shindiawa/Echo shop, I never noticed any more problems with a 2 bolt jug than with a 4 bolt jug.

What kind of problem you see even with the 4 bolted cylinder. I thought the stress is very even with 4 bolts and should never have problem.

Thanks

dutch1
09-17-2010, 11:31 PM
In either case, the main problem is base gasket failures.

Alan0354
09-17-2010, 11:59 PM
In either case, the main problem is base gasket failures.

So only the gasket, never cracking of the mount of the cylinder?

BigFish
09-18-2010, 12:05 AM
As was mentioned, I've only ran across gasket failures, some loose bolts/screws, never a crack or broken case/flange.

dutch1
09-18-2010, 12:07 AM
I've never seen a flange crack other than on ones that were not taken care of, dropped off a trailer or thrown in to the back of a pickup.

Alan0354
09-18-2010, 12:28 AM
Thanks

Alan