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Repair Parts Home  Lawn Equipment Parts  Honda Parts  12311-Z8B-000 Cover, Head
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Cover,​ Head

Part Number: 12311-Z8B-000
Honda
Availability: 12 in stock
Price: $17.24
Ships within 1 business day
Product Information
Manufacturer: Honda
Product Number: 12311-Z8B-000
Classification: Part
Weight: 0.25 lbs.
Shipping: Ships Worldwide
Compatibility

This part is compatible with the following machines:

Honda
Expand the 44 compatible machines
Products Compatibility

This item works with the following types of products:

  • • Lawn Mower
Questions & Answers

I didn't see a gasket between the valve cover and the head? Are they just putting Permatex in-between?
chad for model number gcv190la s3l nh1 asked on 2019-06-06
Hello Chad, thank you for your question. Yes, there is no gasket between the cover and head. Other customers indicated that they used sealant on the new valve cover which was recommended by others. I hope this helps!
Repair Instructions: Submitted by Customers Like You
Bent crankshaft due to hitting very hard object
1. Took off broken blades, blade holder and drive belt pulley. This required a two jaw puller due to bend in shaft.
2. Open up crankcase. Many steps involved. Followed youtube videos. Detailed videos exist.
3. Take out piston. Found lots of black soot on piston, crankcase and valve seats. Apparently due to mistiming from running engine with bent crankshaft since this is a pretty new engine always running smooth before accident.
4. Use carburetor cleaner and lots of work to clean piston and case. Put in new valves and use grinding compound to clean valve seats and "break in" valves.
5. Install new crankshaft (also from ereplacement) and all new parts related to timing. The old ones looked fine but did not want to have to open up again in case there was some damage not visible.
6. Assemble everything. Again lots of steps. Take pictures when disassembling, label parts and use youtube videos. A mechanic friend lent me a puller and a torque wrench.
7. New blade holder and blades.
8. Pull starter cord. Starts right off. Runs very smooth. Cuts very well. Success but it is a major project for amateurs. I am retired thus have the time and love this Honda lawnmower. Kind of expensive because of all the new parts but still cheaper than a new Honda and I have only had it a couple of years. Now it's practically new.
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Product Information
Manufacturer: Honda
Product Number: 12311-Z8B-000
Classification: Part
Weight: 0.25 lbs.
Shipping: Ships Worldwide

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