Question about 2006 Honda VT 750 Shadow

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Engine sounds noisy, kind of rattles, are valves hydraulic or adjustable?

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How do you change clutch cable on a 06 750 aero

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1985 cj7 jeep 258 engine is noisy on idle. rattles constantly , rebuilt engine twice and prob won't go away.


This is kind of hard to judge without hearing it. Lets say the noise is the pellets in the Catalytic converter that some types of automakers used, with low flow at idle, the loose pellets can bounce around until the flow increases and pins them to the insides of the Catalytics.

However, if you rebuilt the motor you would know some mechanical stuff. I can move on to more possibilities.

Oil pressure starvation can make the pushrods rattle in the rocker arms. The engine oil pressure will cushion the critical area between the rocker arm and the pushrod seat.

On the rebuilds, have you worked on the heads? Like valve spring tension and pushrod clearance? I have had engines that would idle perfect until accelerated and return to idle clanging and missing. The valve springs were shot. Then I have had some GM motors that had hydraulic lifters yet the pushrods were different lengths and that is how the pushrod clearance was made; by changing individual pushrods to get the correct clearance.

This is something that can occur when the valve seats are cut. The valve stem can ride up into the head slightly when the seats are cut.

Now you may have replaced the camshaft or the lifters or not. But it is recommended that each lifter is paired with a camshaft lobe. If you mixed the lifters into different positions, you may have distortions that are resulting in noisy clearance problems. For that matter, camshaft bearings may be loose.

The Jeep and American Motors cars used a 232 CID engine too. Can't say what components were different but you may have mixed parts.

Now some models used a Rattle or knock sensor, and in the old days, you could get a rattle from weak distributor springs in the breaker plate. The mechanical advance would throw out too fast.

I am curious. Would like to know what you found.

Oct 31, 2012 | Cars & Trucks

1 Answer

What is tappet settings


Hydraulic tappets are tappets that contain a small hydraulic piston, pressurised by the engine's lubricating oil supply.[5] Although the piston does not move appreciably or frequently, it acts as a hydraulic spring that automatically adjusts the tappet clearance according to the oil pressure. This makes the valve actuation self-adjusting and there is no need to adjust the rockers. Hydraulic tappets depend on a supply of clean oil at the appropriate pressure. When starting a cold engine, with low oil pressure, hydraulic tappets are often noisy for a few seconds, until they position themselves correctly.


Parts For Porsche Panamera

Jun 15, 2012 | Cars & Trucks

1 Answer

Valve settings on a 1992 dodge dakota v6 engine


You should have hydraulic lifters, unless someone changed them along the way. Normally nobody puts solid lifters in a vehicle that is a driven on the street daily. That being said, the normal adjustment for hydraulic lifters is normally take all clearance out of rocker arm to lifter plus an extra 1/2 to 3/4 turn. I used to do this with the motor running, I would adjust it tighter till it quits rattling and then tighten an extra 1/2 turn. If the lifters are bad, however, the rattling will never go away. I hope this helps.

Dec 27, 2011 | Cars & Trucks

1 Answer

2001buell blast valve adjustment


The Blast has hydraulic valves that do not need adjustments, the motor is naturally noisy, and will sound like a blender full of rocks. Without hearing your bike in person it is hard to say for sure, but it is probably normal.

Oct 22, 2011 | 2001 Buell Blast

1 Answer

How to do valve adjustment 2002 escort 2.0 liter SOHC


The valves in this engine are a hydraulic design and require no adjustment nor is there any provision for adjustment in the design. If the valves are noisy then you have defective valve train moving parts, commonly on this engine that is the hydraulic followers (referred to as "Lifters" in older OHV engines).

Oct 10, 2011 | 2002 Ford Escort

1 Answer

Motor makes a pecking sound at 2000 rpm only under a load.does not do it while reving parked


Noise out of the engine. Noisy valves? Low oil level? Is the sound like tick, tick, tick, tick......that's how bad valves sound. I don't know if you have solid lifters those have to be adjusted after some mileage. Hydraulic ones are self adjusting. Only a good mechanic can tell for sure.

Mar 11, 2010 | 1997 Ford Mustang Cobra

1 Answer

Xtype 2.5 awd.engine rattle.more noisy when revved


hi, it sounds to me like the hydraulic lifters need changing first of all check the oil level as low oil can cause the sound you hear also if it has not been serviced recently then get the oil and filter changed as this could also cause the problem.

As your car isnt that old then the chances are a good service will solve the problem unless it has high millage if this is the case then the hydraulic lifters need replacing.

This isnt the kind of job you can do yourself it needs to be done by an expert.

Let me know how you get on or if you need further assistance ok

Jan 18, 2010 | 2005 Jaguar X-Type

2 Answers

My friend just got a 1988 ford ranger  v6 2.9L and has a valve tap and was wondering what different kind of ways he could fix this


if its an ohv type the most common fault is that the oil ways to the rocker shafts become blocked
so get some flushing oil drain the oil and replace with the flushing oil and run for the time stayed on the can then Change to good quality oil and new filter
then remove the rocker covers and check and adjust the valve clearances
if its an ohc type its all hydraulic adjustment
you could try flushing as above but apart from that the only other way is to change the lifters and followers
hope this helps

Jan 07, 2009 | 1988 Ford Ranger

1 Answer

Upon start up, have what sounds like valve train noise


SOUNDS THAT YOUR TAPPETS ARE NOISEY COULDN'T TELL YOU IF ARE ADJUSTABLE OR THEY ARE HYDRAULIC TAPPETS NEED TO REFER TO HYUNDAI.

Dec 17, 2008 | 2001 Hyundai Accent

1 Answer

Noisy cylinder head


These valves are not adjustable, they are hydraulic design. If they are noisy then there is a problem with the followers.

Oct 14, 2008 | 2003 Toyota Corolla

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