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Perkins 4.236 diesel engine - camshaft wear

Perkins 4.236 engine - removed camshaft (while replacing worn cam followers). On the camshaft, the cam that runs the fuel feed pump has some wear (about 1/16th of an inch groove on the lumpiest part of the cam). The rest of the camshaft is fine. Should I replace the camshaft or will it hold up for a while longer.

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2 Answers

Have a ticking noise coming from inside engine,mechanic thinks its probably a worn canshaft 170000kms


the noise is most likely from worn hydraulic lifters rather than cam shaft
the key is your statement that the noise is worse when starting up
Cam shaft noise will be constant with rpms but lifter noise will decrease as the oil pressure builds up
At the klms you state , it is time for a hydraulic lifters set to be removed and have a leak down test done as they will be showing signs of wear
Find an accredited service shop that specializes in your make of car , have the noise properly diagnosed and get a quote for repairs

Mar 02, 2016 | Cars & Trucks

2 Answers

What cause tick tick noise in my cylinder head,funny part when I drive& apply clutch the noise disapear.(Ford bantam 1.8diesel endura de) do I need to change oil or bent valves? Pls help


A ticking noise in the cylinder head area is usually associated with the camshaft/followers, which may be worn.
Here's a couple if images: cause-tick-tick-noise-in-cylinder-drn4r4jcf5cpqfgonvky3zim-5-0.jpg The lobe of the camshaft wears - becomes 'rounded'

cause-tick-tick-noise-in-cylinder-drn4r4jcf5cpqfgonvky3zim-5-1.jpg The cam follower - what the camshaft pushes against to open and close the valves - can become worn.. 'dished' at the top.

It is unlikely you will have to change any valves, unless of course there is wear/damage.

The reason why the tick noise disappears when you are driving is because oil is getting pumped up to the camshaft area, between the cam lobe and the follower and acting as a 'cushion'.

A vehicle that has hydraulic lifters.. they control valve clearances by using oil. Like conventional cam followers, they can wear.

Changing your oil won't cure any wear. You could try using a valve train additive to try and quieten things down.


cause-tick-tick-noise-in-cylinder-drn4r4jcf5cpqfgonvky3zim-5-6.jpg

Hydraulic lifter:
cause-tick-tick-noise-in-cylinder-drn4r4jcf5cpqfgonvky3zim-5-10.jpg

Nov 06, 2015 | Cars & Trucks

2 Answers

I have fire to distributor but not to plugs or fuel pump


I owned a 75 Chevy wagon with HEI ignition and liked to never found the problem. It seems under the center contact on the distributor rotor would get a hole burnt in it, and then all sparks go straight to ground.

Nov 29, 2014 | Cars & Trucks

1 Answer

Toyota 4runner


I take it that the 'ticking' noise disappears shortly after the engine is started?
Can you identify where the ticking noise is coming from?

There are 2 noises associated with engine wear:
1. A rumble or 'knock' - maybe a 'tapping - ' noise from the bottom of the engine may indicate that the big end bearings are worn. The knock/tapping noise is caused by the worn big end bearings striking the crankshaft. The noise will often disappear after start up because of the oil finding its way into the space between the big end bearing and crankshaft. A rumble/knock/tapping from the bottom of the engine usually indicates a very major repair in the not too distant future..

2. A ticking noise from the top of the engine suggests a worn camshaft/cam followers or cam shells (bearings) .. usually a worn camshaft.

I'm not familiar with your model of vehicle (I'm in the UK). However, I would add that 'big end failure' isn't anywhere near as common as it was way back in the 70s. I would guess that your ticking noise has something to do with the camshaft. Any half-decent workshop would be able to diagnose the problem within a couple of minutes.

It's a relatively quick and easy job to change an overhead camshaft (I'm guessing your vehicle is overhead cam..). You may have to open your wallet and part with some of your hard earned dollars to join the 'replacement camshaft club' .. Worn camshafts aren't too uncommon.

Apr 20, 2014 | Vehicle Parts & Accessories

1 Answer

Oil sump filling up with diesel in perkins 4203 engine


First thing to check (and easiest) is the fuel lift pump fitted to the back left side of engine when viewed from the front. This is the fuel pump that 'lifts' the diesel from the tank. It is driven from a cam on the engine via a lever on the pump that operates a diaphram. If this diaphram has a hole in it diesel leaks into the engine while still having enough pump force to operate normally. These are cheap enough to replace - whole unit for 20quid. Could also be the CAV Fuel pump that is on front right side (behind timing cover) that has the 4 solid pipes coming from it that feeds the 4 injectors. This is a complex piece of kit that is expensive to replace, cheap to buy a rebuild kit for (PARTS4ENGINES.COM). If the engine is running OK then these would be the two places I would check first. If the engine is running like a bag of nails could be as bad as a cracked cylinder liner.
Good Luck

Mar 04, 2013 | Cars & Trucks

3 Answers

99 Polaris Sportsman 335, idles fine but when you give it gas it sounds like it bogging out. We have replaced plug and needle and seat. Runs even worse with the air cleaner on. Help


It sounds like the camshaft is going flat. The exhaust lobe on the camshaft is the first to wear. Basically the exhaust isn't opening the entire duration it needs to expel the exhaust. This will cause the bogging issue. Polaris uses an overhead camshaft, which fortunately, makes it easier to replace. To check the camshaft:
1. Remove spark plug
2. Remove the large bolt on top of the recoil starter
3. Rotate the engine with the pull rope until the "T" mark on the flywheel is visible through the hole the bolt was removed from
4. Remove 8 screws on valve cover, fuel tank removal is not necessary but gives you more room
5. Remove 4 bolts from rocker arms, lift rocker arms off camshaft
6. Rotate engine again with pull rope to inspect camshaft. The center of the camshaft is the exhaust lobe, intake lobes are on the outsides of cam. The exhaust lobe should be about the same height as the intake lobes, and will be noticeably flat
To replace the camshaft:
1. Remove camshaft gear access cover on right side of engine
2. Rotate engine again until the "T" mark on flywheel is visible, 2 dots on the camshaft gear should be at the top of the gear and will be parallel to the mating surface of the valve cover
3. Locate the chain tensioner, 2 small bolts holding tensioner to cylinder and 1 large bolt in the center. Remove the large center bolt to remove tension. There will be a spring and pin inside tensioner so be careful not to let it fly out.
4. Remove screws holding gear to camshaft, leave the gear on the chain
5. On the left side of the engine, clamp the coolant hose going into the thermostat cover
6. Remove thermostat cover, some coolant will come out but is ok
7. There will be a round cover on left side of engine with 3 screws, remove that cover and pull the camshaft out through that hole.
8. Install new camshaft, make sure the automatic decompression lever does not come out while handling. Keep pressure on decompression lever and hold cam so that the little ball inside the cam is facing downwards, this will help to keep the lever inside the cam
9. Install cover on the left side
10. Install cam gear on camshaft
11. Remove exhaust rocker arm from the shaft and replace with a new exhaust rocker arm
12. Install spring, pin, and bolt in tensioner once the gear is in place
13. Install rocker arms, set valve clearance to .006 in for intake and exhaust
14. Reinstall covers and thermostat cover
15. Option B is to take it to a Polaris dealer to avoid the hassle of trying to do it yourself!
Hope this helps, if you need any more assistance let me know, Daniel

Oct 04, 2011 | Polaris ATV

1 Answer

I have a 94 buick park ave and i can get the car to start but it dies right away. some times it will run for a while but it then dies. it sounds like it is back firing through the engine and i have...


That year they had issues with camshaft sensor wires and the crankshaft sensors wires,,touch each other..They run together in a wire harness and the insulation wears out and they touch intermittently..Follow the wires from the cam and the crank and see if they are touching each other

Sep 11, 2011 | 1994 Buick Park Avenue

1 Answer

I replaced gas tank, fuel line, fuel pump, carburetor, and still no gas to Carburetor.


A mechanical fuel pump works off a lobe on the cam, usually. I have seen these cams wear down to the point that the fuel pump does not operate correctly. A quick test is to; remove the fuel lines from the pump, plug the oulet side of the pump with your finger, install a vacumm gauge on the inlet side and crank the engine. The gauge should show good vacumm and you should feel pressure against your finger. If none of these exist then you should replace the camshaft.

Aug 30, 2011 | Chevrolet Nova Cars & Trucks

2 Answers

How to quiet lifter noise


It depends on how noisy the lifters are. Your engine is a pushrod engine and there will be some noise. Generally is just a small ticking noise due to running clearance in the rocker arm bushings and such. The tappets (lifters) in your engine are hydraulic just like the tappets in a pushrod automobile engine. If your tappets are really making a noise, like a can of rocks, you might not have enough oil pressure or the roller on the end of the tappet that runs on the cam may be bad. If the tappet is the reason for the noise, the only thing you can do is replace them. If the roller on the end locks up, it will damage the cam lobe that it runs on as well meaning the cam will have to be replaced as well.

Good Luck
Steve

Aug 21, 2011 | 2003 Harley Davidson FLHTC Electra Glide...

1 Answer

What would cause a combination of P0304 and P2293 OBD codes on a 2007 Passat 2.0T?


P0204 is miss fire detected on #4 cylinder.

Below is TSB from VW on your problem...a common one.


Technical Product Literature Transaction No.: 2015153/1
MIL ON, DTC P0087, P1093 or P2293 Stored in ECM Fault Memory Release date: Jun 29, 2007
Condition
15 07 04 June 29, 2007 2015153
MIL ON, DTC P0087, P1093 or P2293 Stored in ECM Fault Memory
MIL ON with the following DTCs may be stored in ECM fault memory:
DTC Description
P0087 Fuel Rail / System Pressure - Too Low
P1093 Fuel Trim 2, Bank 1 Malfunction
P2293 Fuel Pressure Regulator 2 Performance

Technical Background
Excessive wear of intake camshaft lobe that drives the high pressure fuel pump. The wear limits maximum pump piston lift, causing fuel rail pressure fluctuations.
The wear on the camshaft lobe can also lead to wear on the base of the high pressure fuel pump cam follower.
Production Solution
Increase surface hardening of camshaft lobe for the high pressure fuel pump
Improved intake camshafts have Part No. 06F109101B.
Service

• Remove the high pressure fuel pump and visually inspect:
1. Base surface of the cam follower -6- in contact with the camshaft lobe.
2. Tip of the high pressure fuel pump plunger.
3. High pressure fuel pump camshaft lobe.

If the base of the cam shaft follower looks like -C- or -D-, no excessive wear is present.
Cam follower and camshaft should not be replaced.
If the cam follower base surface is excessively worn so that its surface is concave -B- or missing -A-, inspect the intake cam shaft lobe for wear.

cam.jpg

If the high pressure fuel pump camshaft lobe shows excessive wear, replace the intake camshaft with Part No. 06F109101B and the cam follower with Part No. 06D109309C, see Group 15 Engine - Cylinder head, Valvetrain in ElsaWeb.

Inspect the tip of the high pressure fuel pump plunger for excessive wear.
If excessive wear is found the high pressure pump must also be replaced, see Group 20 Fuel supply in ElsaWeb.
Tip:
High pressure fuel pump plunger damage is only possible if the cam follower base has a hole in it and the plunger tip has come in direct contact with the camshaft lobe.
If no excessive wear can be found in the high pressure fuel pump cam follower or intake camshaft lobe, or if the damage is found in camshafts with part number 06F 109 101 B, create a Technical Assistance Contact Ticket under the Concern Type Engine and Engine Electronics in ElsaWeb.
Attach the complete diagnostic log to the contact, and call the VW Technical Assistance Center for further assistance.

Warranty
When procedure applies to vehicles within the New Vehicle Limited Warranty, use the following:
Claim Type: W2
Part Identifier: 1505
Damage Code: 1505 18 _ _ _* 2
Labor Operation:
2.0T FSI engine Use applicable SRT time in ElsaWeb
Diagnostic Time: Actual GFF time expenditure
Claim Comment: Input "As per Technical Bulletin 2015153" in comment section of Warranty Claim.

* Code per warranty vendor code policy.
Required Parts and Tools
Description Part No: Quantity
Intake Cam Shaft 06F109101B 1
Cam Follower 06D109309C 1

No Special Tools required.

Aug 19, 2011 | 2007 Volkswagen Passat Sedan

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