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914World.com _ 914World Garage _ Rattle noise
Posted by: cal914 Jun 21 2016, 01:38 PM
I recently had our 1.7 serviced and they reset the gaps in the tappets but now the engine seems to make a rattle noise now,something it didn't do before hand they are experienced so i doubt that they set the wrong gaps but somethings changed
Thanks Brian
Posted by: Rand Jun 21 2016, 01:41 PM
Sounds like they don't know the right specs and got some way too loose. Ask them if they know what should be .06 vs .08 and if they know which 914s had engines that needed different specs.
Posted by: Bob L. Jun 21 2016, 02:15 PM
Does it quiet down after warming up?
Posted by: 76-914 Jun 21 2016, 02:18 PM
That or they gapped chromoly rods, unwittingly. Also, check your heat exchanger for a loose fit or some tool left on top of an exchanger.
Posted by: cal914 Jun 21 2016, 02:29 PM
That or they gapped chromoly rods, unwittingly. Also, check your heat exchanger for a loose fit or some tool left on top of an exchanger.
The noise is defiantly coming from the engine , when I spoke to the guy he said that the gaps where really tight could that mean that they are chromoly rods (what ever they are )
Thanks Brian
Posted by: The Cabinetmaker Jun 21 2016, 02:55 PM
Brian, chromoly pushrods do not expand like the stock sodium filled rods. They are adjusted at zero lash. The ends of the rods are very different from the stock, so easy to tell if they are not stock. that doesn't mean they are chromoly, just means they are not stock
Posted by: barefoot Jun 21 2016, 03:22 PM
Brian, chromoly pushrods do not expand like the stock sodium filled rods. They are adjusted at zero lash. The ends of the rods are very different from the stock, so easy to tell if they are not stock. that doesn't mean they are chromoly, just means they are not stock
Sodium filled push rods ???, mine are just just aluminum with open ends.
Posted by: r_towle Jun 21 2016, 03:58 PM
Doubt the push rods were replaced, just bring it back it may just need to be done again...
Posted by: Mark Henry Jun 21 2016, 04:45 PM
Brian, chromoly pushrods do not expand like the stock sodium filled rods. They are adjusted at zero lash. The ends of the rods are very different from the stock, so easy to tell if they are not stock. that doesn't mean they are chromoly, just means they are not stock
Sodium filled push rods ???, mine are just just aluminum with open ends.
Yep.... OE 2.0 exhaust valves are sodium filled.
Posted by: stugray Jun 21 2016, 05:28 PM
He said pushrods.
the pushrods are not sodium filled but the valves are.
In fact they are hollow so they can pump oil to the rockers.
Posted by: mepstein Jun 21 2016, 05:44 PM
Check the fan
Posted by: The Cabinetmaker Jun 21 2016, 07:53 PM
Stu is correct. Sodium filled valves. Not sure what I was thinking.
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