Hi guys! Here I am again, not even a thousand kilometres after the new GEP engine, new problem. A ticking noise that occurs from time to time, especially as soon as I stop after a lap, then after a minute at idle it disappears. The engine runs very well, pulls hard, doesn't smoke and always starts at the first stroke. Manifolds tightened, injectors OK, even without the belt the same ticking noise, engine pulley seems OK. I only have a leak from the fuel pump coupling. I've tried to figure out where the noise is coming from but it's not easy.
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M1045 a2 ticking noise
- Thread starter Tato
- Start date
- 10,163
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- Camp Wood/LC, TX
Ticking might be a valve lifter.
Oil and filter replaced after 500km and tappet additive added. Sometimes it seems to tick between the engine and gearbox, sometimes on the passenger side. It still works but is really annoying. If it idles for an hour there is no ticking, as soon as you go a few metres it starts again, one minute at idle and it stops. I've noticed a fuel pump leak in the coupling but I don't think it's that, any advice?
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- WOBURN. MA.
For the hell of it check the lower alt mount that goes to the head. Mine was tight but not tight enough and it gave me a ticking sound here and there and it bugged me.
Mark
Mark
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- WOBURN. MA.
Check the lower alternator mount at the rear of the alternator where the bracket mounts to the exhaust manifold stud.
Mark
Mark
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- Charlotte NC
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Exhaust leak is a possibility too. On a cold manifold, freshly started truck - spray bottle of soapy water. If you have an exhaust leak you should see it immediately. Don't be stingy with the Dawn dish soap. Even down below since you mentioned "ticking" and any pipe connection down there - give it a spray too.
I'll try but the Allen bolts are all tightened, as are the flange bolts, the only thing missing is to check the passenger side because the bulkhead is annoying. I'll try dismantling the starter motor and check there too.
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- Papalote, TX
How many miles at highway speed do you have on this engine?
- 571
- 570
- 93
- Location
- Evansville, IN
most likely exhaust somewhere, either manifold or downstream.. 99% My 2 cents
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- Brentwood, Calif
only the turbo exhaust manifolds are metal to metal, the NA’s use a gasket
There are very few gaskets that are supposed to be in these engines. Despite them being available through the aftermarket, don't be tempted to use them. This list includes the oil pan, valve covers, exhaust manifolds, timing cover, water pump adapter plate. No. Gaskets.
There are very few gaskets that are supposed to be in these engines. Despite them being available through the aftermarket, don't be tempted to use them. This list includes the oil pan, valve covers, exhaust manifolds, timing cover, water pump adapter plate. If you're assembling an engine on a stand, I also suggest tossing the fuel lift pump and adapter plate gaskets in the trash as well.
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- Brentwood, Calif
That’s a civilian engine, uses cast manifolds, as stated HMMWV NA’s require a gasket, they don’t use a casted exhaust manifold