The torque specs for the head bolts in sequence is 20, 40, then end at 63ft lbs. When torquing bolts or nuts, begin with largerdiameter or inner bolts first and. How to find your honda engines model number honda engines gx390 parts diagrams. The gx390 is all new for 2010, featuring more power, quieter performance, lower fuel consumption, and lower emissions. Download or purchase honda engine owners manuals for the gx390. Gx390 specifications dimensions diagrams performance curve specifications engine type air cooled 4 stroke ohv bore x stroke 88 mm x 64 mm displacement 389 cm 3 net power output 11.
Intake manifold bolts 2325 ftlbs oil pump bolt 2328 ftlbs. Gx240 gx270 gx340 gx390 1 thank you for purchasing a honda engine. This video shows the valve repair of a honda gx390. Auto express new fits honda gx390 hp cylinder head gasket. Torque values mm nm kgfm lbsft crankcase cover bolt m8 x 1. Protect yourself and others whenever you have enginepower equipment up in. The gx390 engine is suitable for a wide range of heavyduty applications such as construction equipment, tillers, generators, welders, pumps and other industrial applications. He dropped a exhaust valve, i have all the parts to rebuild the head, its kinda cool, slip in valve guide design. This manual contains information on how to do that.
Small engine gx390 what would be the torque on the head. Model manufacturer engine type maximum horsepower mhp displacement bore x stroke compression ratio engine speed 1 starting system d models only. Everest full gasket set compatible with hp honda gx390 gas engines. Make liter cid engine model year rod torque main torque cylinder head bolt torque acura 1. Correct engine matching ensures that the engine will be durable and emission durable in use. Parts lookup for honda engines power equipment is simpler than ever. Honda gx390k1 389 cc, hp small engine specifications. Honda gx390 manuals manuals and user guides for honda gx390. This manual should be considered a permanent part of the engine and should. Honda gx390 cylinder head parts superfast performance. The honda gx390 k1 has overhead valve design, singlecylinder inclined by 25, transistorized magneto ignition system and horizontal carburetor with a butterfly valve. Stock, factory crankshaft only, with stock, factory timing gears in factory location. Be sure to apply anti sieze or dip the head bolts in oil, before you torque them down or you. Jun 05, 2010 does anyone know the rod cap torque and the head bolt torque setting.
Actual power output for the engine installed in the final machine will vary depend ing11. Gx240 gx270 gx340 gx390 ut2rt2 technical manual valve clearance checkadjustment remove the head cover bolt 1, the head cover 2, and the head cover packing 3. This item auto express new fits honda gx390 hp cylinder head gasket hp engine. Honda gx390 hp cylinder head rocker arms connecting rod camshaft gasket kit 103. Feb 04, 2010 can you tell me the the connecting rod and head bolt torque specs in inch pounds for a. Small engine gx390 what would be the torque on the head bolts and the con rod bolts. Honda engines gx340 4stroke engine features, specs, and. This owners manual is considered a permanent part of the engine and should remain with the engine if resold. The power rating of the engines indicated in this document measures the net power output at 3600 rpm 7000 rpm for model gxh50, gxv50, gx25 and gx35 and net torque at 2500 rpm, as tested on a production engine. Enter your model number in the search box above or just choose from the list below.
Be sure to apply anti sieze or dip the head bolts in oil, before you torque them down or you might pull out the threads. We want to help you to get the best results from your new engine and to operate it safely. Dip main bearing bolts and crankshaft damper bolt in clean engine. Our pro velocity cylinder head kits are fully machined, including milled cylinder deck surface, multiangle valve job, ported and polished runners, flow tested on a superflow flow bench to ensure port flow and velocity meets requirements, nitrided stainless steel valves with hardened tips no lash caps required, split style automotive type valve locks and billet aluminum valve spring retainers.
Engine service specifications 19982009 american honda motor co. The honda engines g65, g80 engine shop manual covers service and repair procedures for the g65 and g80 general purpose engines. Gx240 gx270 gx340 gx390 international power systems. Honda engines gx340 4stroke engine features, specs.
Aftermarket steel main bearings of nonselfaligning type, with or without seal are allowed. Applications manual, owners manual, technical manual, quick reference manual. Torque specs is rather recommended guide you should go through simply because all the things you go through like honda gx390 engine torque specs will fill your head with new bits of data, and you simply never jf11 pdf download pdf. Jan 29, 20 fastener type torque spec main cap bolts 6070 ftlbs outer main cap bolts 3540 ftlbs. This is a 3 part series comment, like or whatever you are thinking. Explanation of model numbers and date codes pdf connecting rod torques. The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with sae j49 at 3,600 rpm net power and at 2,500 rpm max net torque.
Environmental protection agency and the california air resources board regulations. Check that all shields and covers are in place, and all nuts, bolts, and screws. Keep this owners manual handy, so you can refer to it at any time. Discussion in mechanic and repair started by timbvr, jun 5, 2010.
Turn the crankshaft and set the piston at top dead center of the compression stroke both valves fully closed. My buddy is a landscaper and i fix all his gear on the side for him. To enable this, create a smart collection named all products and set the condition to product price is greater than 0. It boasts a small foot print for easy mounting and can power applications that pose difficulty in mounting a twin cylinder engine. Table listing honda small engine cylinder head torques. The new engine has variable ignition timing digital cdi. The duration check for intake and exhaust lobes is listed below. We have 17 honda gx390 manuals available for free pdf download. Home honda honda gx390 k1 honda gx390 k1 the honda gx390 k1 is a 0. Honda gx390 horizontal engine honda replacement spares available kudu industrial lawnmower with honda gx390 engine engine type aircooled 4stroke ohv bore x stroke 88 x 64 mm displacement 389 cm3 net power output 11. Technical information valve adju valve adjusting lock nut cam pulley 6. Gx240 gx270 gx340 gx390 ut2rt2 technical manual 2010 american honda motor co. The service and repair information contained in this manual is intended for use. If a problem should arise, or if you have any questions about your engine.
Honda engines shop manuals publications honda power. Correct engine matching ensures that the engine will be durable and emission. Fastener type torque spec main cap bolts 6070 ftlbs outer main cap bolts 3540 ftlbs. You can create a collection through the collections menu in shopify admin. Download honda gx390 engine torque specs format pdf book free download books honda gx390 engine torque specs honda gx390 engine torque specs is rather recommended guide you should go through simply because all the things you go through like honda gx390 engine torque specs will fill your head with new bits of data, and you simply never jf11 pdf. Auto express new fits honda gx390 hp cylinder head. Gardening mall replacement for honda gx240 gx270 gx340 gx390 8hp 9hp 11hp hp muffler. Stock camshaft 7only, ezspin assembly must remain as stock. Honda engine distributors and equipment manufacturers that use honda engines are required by regulation to follow this oem technical manual. The triangle mark on the starter pulley will align with the top hole on the starter cover when the piston is at top dead center of the compression or exhaust stroke. From spring 2010 onwards, honda producing the updated version of gx390 engines with larger displacement. Superfast performance products inc extreme engine systems 828 980 8072 9.
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