Date: Thu, 31 Dec 2015 18:27:41 -0600
Reply-To: John Rodgers <jrodgers113@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: John Rodgers <jrodgers113@GMAIL.COM>
Subject: Re: New engine won't turn - 2.1 WBX
In-Reply-To: <56859FA9.10602@turbovans.com>
Content-Type: text/plain; charset=UTF-8
Will do all that. For some, there seems to be a little confusion.
This is a brand new overhaul. All new parts except for crank and case,
which miked out well within spec. It has never even off the buildup bench.
Still isn't. Pulling it thru by hand with the heads of, it turns fine.
Free. Put the heads on fully torgued ready for installation in the van, it
won't turn.
This has got to be a head problem and a valve problem at that. The AMC
valves that came with it were replaced with TRW valves. Seats retouched for
three faces, valves snd seats hand lapped together. There shouldn't be any
thing wrong, but there is. Still hunting for a solution.
Will test Scott's way!
John
On Dec 31, 2015 15:45, "SDF ( aka ;jim lahey' - Scott )" <
scottdaniel@turbovans.com> wrote:
> super easy to check for a valve stuck in a guide.
> heck...
> a simple test, head on the bench, tap each valve stem top with a hammer.
> if it bounces back from spring operation ...valve is not stuck in guide.
>
> on the engine ..use a prybar of some sort to make sure each valve moves
> in its guide properly.
>
> besides..
> one *always* *always* checks the smoothe operation and movement of ALL
> components every step of the way, at every opportunity.
>
> flywheel shims and bits there are good to consider of course.
> Scott
>
> On 12/31/2015 6:41 AM, OlRivrRat wrote:
>
>> Only Problem with Those Theories is that he said it Turns Fine
>> Without the Heads on ~
>>
>> John
>>
>> Did you try to see if it would Turn Backwards @ all With Heads
>> on ~
>>
>>
>> On 31 Dec , 2015, at 6:31 AM, kenneth wilford (Van-Again) wrote:
>>
>> I think Darrell is pointing you in the right direction. There is the
>>> thrust washer that can easily drop out of place when you install the
>>> flywheel. Or you miscalculated the thickness of the endplay shims as
>>> Darrell suggested. Either of those happen way more often than a messed
>>> up
>>> valve in a brand new AMC head (never).
>>>
>>> Ken
>>>
>>> On Thu, Dec 31, 2015 at 7:35 AM, Darrell Boehler <midwesty@gmail.com>
>>> wrote:
>>>
>>> It is easy to add not enough shim thickness on the crankshaft.
>>>> Check the crankshaft for end play. Loosen the Flywheel /torque
>>>> converter plate
>>>> then see if it turns then. Been there done that. When testing for
>>>> crankshaft
>>>> shim thickness it is easy to add not enough shims because we don't
>>>> tighten the
>>>> the flywheel fully during testing / adjusting.
>>>> Best of luck with your projekt
>>>> Midwesty
>>>>
>>>>
>>>> On 12/31/2015 4:30 AM, John Rodgers wrote:
>>>>
>>>> Engine turns beautifully by hand on the bench. Put the new AMC hesds on
>>>>> with all parts assembled, torque them down, and the beenengine won't
>>>>> turn.
>>>>>
>>>>> Removed the heads twice, still no joy. Sounds like a valve stuck in a
>>>>> guide
>>>>> to me.
>>>>>
>>>>> Any body else ever had this problem or got an educated opinion?
>>>>>
>>>>> Thanks.
>>>>>
>>>>> John
>>>>>
>>>>>
>>>>>
>>> --
>>> Thanks,
>>> Ken Wilford
>>> John 3:16
>>> www.vanagain.com
>>>
>>
| 
