Author Topic: Craftsman 3.7 Not a roper  (Read 848 times)

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Offline Cut4fun

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Re: Craftsman 3.7 Not a roper
« Reply #10 on: December 01, 2014, 09:54:33 am »
Poulan 3800 has two thick rings and an aluminum bore.   Randysenginerepair on eBay has a set of rings for 17.99 and free shipping.

The 3800 should be around 125 psi on the compression.

Roger I just want to make sure that I got this right.

Poulan 3700 3800 same bore?

3700 chrome bore.

3700 thin rings or thick?

3800 bare bore.

3800 chromed piston.

3800 think rings.


Offline fossil

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Re: Craftsman 3.7 Not a roper
« Reply #12 on: December 01, 2014, 10:13:19 am »
3800 bore 1.880"  thick rings

3700 bore  1.875" thin rings

Pic comparison

Tim

Offline Cut4fun .

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Re: Craftsman 3.7 Not a roper
« Reply #13 on: December 01, 2014, 10:16:13 am »
Thanks Tim.  I am forgetting stuff faster then it is retaining anymore.    :'(


Offline 3000 FPS

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Re: Craftsman 3.7 Not a roper
« Reply #14 on: December 01, 2014, 10:59:27 am »
Yes that is correct thanks Tim.
PP 505, 475, 445.

 

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