![ka24de timing marks single chain diagram ka24de timing marks single chain diagram](https://i.ytimg.com/vi/r4BxXz8Ij2s/hqdefault.jpg)
The puller is pretty standard 3 jaw to remove the harmonic balancer, noting some pullers don't work with this crank pulley. The TP socket is used for removal of the camshaft sprocket bolts. The use of the wrong tool will likely strip out the bolt head. The TP socket is very different from a regular Torx socket. A basic selection of tools will get the job done along with the addition of a few specialty tools. There are going to be a few tools you will need to complete a task like changing your timing chain. Eventually I will divide this article up into a few pages explaining removal procedures for each model. Even with the twin turbo engine having an impressive three timing chains, three chain tensioners, four chain guides, four camshafts -its a very simple process.
#Ka24de timing marks single chain diagram trial#
No harm in trying.Īlso, you can get a free 30day trial of Amazon Prime to get free shipping on most the products I link! Combined with the above credit card offer, you can save a lot of money.Ĭhanging the timing chain on a 3.5L Ecoboost isn't nearly as bad as you might think. I can get you an easy $100 bonus and some available credit if you apply for a Discover Credit Card using this link. Repairing this stuff can get really expensive. The small amount of wear, multiplied for every link, creates a chain that is longer. The chain wears out at the pivot points for each link because the way the chain is routed causing it to bend completely backwards as it travels along the water pump / center idler. The 3.5L EcoBoost chain doesn't actually 'stretch' because elasticity is not a property of metal. I should elaborate a bit on the chain failures. This problem can be remedied with a new timing chain.
![ka24de timing marks single chain diagram ka24de timing marks single chain diagram](https://www.2carpros.com/images/question_images/212568/original.jpg)
Near the end of this article you can see what a new chain looks like. You can see how the tensioner is fully extended causing the chain to wrap around the crankshaft gear more than needed. The picture is actually a Taurus experiencing the elongated chain. This article is about the first generation Ford 3.5L Ecoboost, in the 2011-2015 F150, but can be applied to the FWD variation as well. See the picture? No good! I love these 3.5L EcoBoost engines, but this is definitely an issue.
#Ka24de timing marks single chain diagram full#
A stretched chain causes a few drivability issues, maybe some noise, then escalates into a full blown tear-down due to bent valves. I mean that literally - the timing chains are stretching causing all sorts of problems. These engines come buried inside the F150, Explorer, and Taurus have been experiencing little growing pains. The 3.5L EcoBoost is great engine with a few problematic complaints. per miles)Ĥ.2-4.9 kg/cm 2 (49.8-56.3.5L Ecoboost Timing Chain Replacement Last Modified : Nov 21, 2021 Head tightening procedure and torque specs: The tension of the chain is controlled by a chain tensioner which is operated by spring and oil pressure. The camshaft is driven by a single row roller chain driven by the crankshaft. For this engine, redline is lowered to 6,000 rpm. The Nissan KA24E engine version for SUV uses a camshaft with duration 232°/232°, and valve lift 9.7/9.7 mm. The KA24E rev limiter is set on 6,500 rpm. The intake valve duration is 240°, valve lift is 10.4 mm (0.409 in) the exhaust valve duration is 248°, valve lift is 10.4 mm (0.409 in).
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Intake valves are 34.0 mm (1.34 in) in diameter and the exhaust valves are 40.0 mm (1.57 in). The Nissan KA24E motor use three valves per cylinder (two intake valves and single exhaust valve) and the dual type valve springs. The valve system has a pivot type rocker arm that is activated directly by the cam mechanism. The cylinder head is made of aluminum alloy. lbįlywheel (M/T) or Drive plate (A/T) fixing bolts.lb in two-three stagesĪfter securing bearing cap bolts, make sure crankshaft turns smoothly by hand.Main bearing beam bolts tightening procedure and torque specs: Number of piston rings (compression / oil): The KA24E engine cylinder bore is 89.0 mm (3.5 in) and the piston stroke is 96 mm (3.78 in), compression ratio rating is 8.6:1 or 9.1:1. The Nissan KA24E motor has a cast-iron cylinder block, cast steel connecting rods, a half-counterweighted forged steel crankshaft.