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Nairaland Forum / Nairaland / General / Car Talk / Engine Rattle Noise Upon Cold Startup. (6266 Views)
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Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 9:48pm On Aug 30, 2023 |
This shows the engine valvetrain exposed, the intake camshaft gear installed.
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Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 7:36am On Aug 31, 2023 |
New and old timing chain damper (top). The old one had a broken plastic damper, which increased the rattling noise to such a scary level. Always inspect this part, when replacing the camshaft gears.
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Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 7:46am On Aug 31, 2023 |
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Re: Engine Rattle Noise Upon Cold Startup. by codemaster2much: 8:56am On Aug 31, 2023 |
Bro you dey try, you Gazzuzz, kingreign and radautowork and less I forget one bro called blackbishop are among the best on nairaland |
Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 7:57pm On Aug 31, 2023 |
The only two parts replaced
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Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 8:18pm On Aug 31, 2023 |
The new camshaft gear ordered from ebay, here, after it was left soaked for a day in 5W-30 engine oil.
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Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 8:21pm On Aug 31, 2023 |
The camshaft gear, soaked in engine oil before installation
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Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 8:23pm On Aug 31, 2023 |
Image showing the new camshaft gear replaced.
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Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 8:27pm On Aug 31, 2023 |
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Re: Engine Rattle Noise Upon Cold Startup. by aieromon(m): 9:20pm On Aug 31, 2023 |
TRYGO: What is the reason for this? 1 Like |
Re: Engine Rattle Noise Upon Cold Startup. by jceesquare(m): 8:49am On Sep 01, 2023 |
aieromon:So it doesn't run dry on 1st start. But leaving it soaked in oil for a whole day is an overkill to me though. Better safe than sorry sa. 1 Like |
Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 9:25pm On Sep 01, 2023 |
aieromon:Resln for this is to prevent damaging the internal mechanism in the camshaft gear, as a result of it being bone dry feom the factory as it is brand new. Hope you understand thatstarting an engine component, especially the valve train, without oil, would wear out the components much faster? Another reason nis that the camshaft gear comes from the factory LOCKED. So it is recommended by toyota or other brands, to have the gear unlocked, using pressurised air, to prevent that sudden rattling noise you may hear on the first start if the engine after inatallation. If you got no access to compressed air in the shop, a sime alternayive i use is to soak in oil for a day; and when you come to install, immdiately you insert the solid camahft rod into the keyway opening of the camshaft gear,, it is always easily hand twisted clockwise to unlocked it. 2 Likes |
Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 9:26pm On Sep 01, 2023 |
jceesquare: Yes 1 Like |
Re: Engine Rattle Noise Upon Cold Startup. by fk002: 8:29am On Nov 10, 2023 |
TRYGO: Good morning sir, is it advisable to just buy another camshaft rather than changing the camshaft gear? |
Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 9:36am On Nov 25, 2023 |
fk002: Depends if you are buying them used or brand new. If buying used, the complete camshaft would be economical. But you got to maje sure the camshaft gear itself is not the same defective type from the donor vehicle. |
Re: Engine Rattle Noise Upon Cold Startup. by fk002: 9:55am On Nov 25, 2023 |
TRYGO: Thank you I bought the Belgium one, and the car is fine now. Some part of the damper that holds the chain got broken the chain was moving freely, and the part of the damper that broke, caused defect on one of the gear of the camshaft the one at the back precisely. So I had to change Damper, sprocket, and one complete camshaft. Everything is working fine now. I hope it will last. 2 Likes |
Re: Engine Rattle Noise Upon Cold Startup. by macbeyland(m): 1:58am On Nov 29, 2023 |
Jesu Kristi! You guys will not believe that I've been having this same issue. Each time I start my vehicle, it makes this rattling noise for like 2 seconds and stops. Sometimes while moving, it makes the noise too. Just yesterday, a diagnostics center said it's the oil pump Possibly might be unrelated, but I noticed that engine sound seems louder in the cabin when accelerating, even when the windshields are wound up. The vehicle came with an already tampered (changed) catalytic converter, it's a China one that's there. I don't know if it's the camshaft, or the fake catalytic converter or just a bad muffler that's causing the loud engine noise on acceleration. When the engine is running idle, you can barely hear it. The loud engine noise into the cabin is only noticeable when you begin to accelerate. My Vehicle is Toyota corolla 2008 XLE |
Re: Engine Rattle Noise Upon Cold Startup. by dicksonadams(m): 3:34am On Nov 29, 2023 |
TRYGO:how do you know if the cam gear being purchased is defective? |
Re: Engine Rattle Noise Upon Cold Startup. by fk002: 8:04am On Nov 29, 2023 |
macbeyland: Is obviously the camshaft that is making the rattling noise |
Re: Engine Rattle Noise Upon Cold Startup. by fk002: 8:05am On Nov 29, 2023 |
dicksonadams: The teeth of the gear ⚙️ will be chopped off or bruised |
Re: Engine Rattle Noise Upon Cold Startup. by macbeyland(m): 8:27am On Nov 29, 2023 |
fk002: Pls any idea why my engine noise will be loud on acceleration? Do you think it is the catalytic converter that's causing it? |
Re: Engine Rattle Noise Upon Cold Startup. by dicksonadams(m): 10:25am On Nov 29, 2023 |
fk002: appreciate |
Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 6:14am On Dec 09, 2023 |
dicksonadams: Via parr numbers |
Re: Engine Rattle Noise Upon Cold Startup. by TRYGO(m): 6:22am On Dec 09, 2023 |
macbeyland: |
Re: Engine Rattle Noise Upon Cold Startup. by obidevine(m): 8:29pm On Sep 25 |
dicksonadams: Please trygo , I'd really appreciate if you answer this question. |
Re: Engine Rattle Noise Upon Cold Startup. by jceesquare(m): 12:00pm On Oct 04 |
obidevine:Twist the cam gear by hand before installing, if you feel the little shake and rattle , then its most likely bad. |
Re: Engine Rattle Noise Upon Cold Startup. by bacco2000(m): 8:14pm On Nov 09 |
Please where did you buy this and where is your mechanic, i have a similar issue with my car. fk002: |
Re: Engine Rattle Noise Upon Cold Startup. by josephsm823(m): 9:45pm On Nov 09 |
bacco2000:I'm having same issues too. Camshaft changed two different times and it didn't work out. I might have to replace the engine soon cause the stupid mechanic removed the engine metal claiming it is the culprit making the grinding sound on cold start. |
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