Solved my reversion problem

Coots Magee · 09-15-2012, 12:30 AM

I had reversion problems (jake brake sound between shifts or upon decel) with my 07 nomad with V&H touring duals. Solved the problem by mounting lollipops near the tail end of the baffles.

cactusjack · 09-15-2012, 01:19 AM

Quote:

Originally Posted by Coots Magee

I had reversion problems (jake brake sound between shifts or upon decel) with my 07 nomad with V&H touring duals. Solved the problem by mounting lollipops near the tail end of the baffles.

Ah, okay...now that makes sense.

**Timay** · 09-15-2012, 07:00 AM

Hmmm. Doesn't make sense to me as reversion is when the intake valve opens prior to the exhaust valve closing (which they all do on a reasonably high performance engine - see here: http://www.circletrack.com/enginetec...ake_reversion/) and the exhaust gases blow the intake gases back into the intake runner. Makes more sense if he is talking about the engine going lean because of less back pressure and is popping on decel...and then the lollipop would work by causing a bit more back pressure and a less lean mixture and no more 'jake brake' sound.

I'd like some more info on how the lollipop is mounted - I think that may be the answer to the lack of adequate vacumn to run my cruise control (and my popping on decel with the V&H Duals). Did you just mount it to the baffle?

Thanks!

Tim A

**ringadingh** · 09-15-2012, 08:17 AM

My 1500 motor always made that jake brake sound when letting off the throttle. Now that I have the 1600 motor installed with the same exhaust, that noise is gone, but it pops on decel now, even though its marbled, and no apparent leaks.

Coots Magee · 09-15-2012, 09:33 AM

Timay, I'm not sure about all the technical jargon "lol" I just know it's working.
I'll post a pic ASAP.

Coots Magee · 09-15-2012, 09:10 PM

lollipops installed in V&H Touring duals baffles.
Then wrapped with one layer of exhaust wrap then wrapped with lightweight metal flashing.

dabull · 09-15-2012, 09:21 PM

Quote:

Originally Posted by ringadingh

My 1500 motor always made that jake brake sound when letting off the throttle. Now that I have the 1600 motor installed with the same exhaust, that noise is gone, but it pops on decel now, even though its marbled, and no apparent leaks.

Not popping....GROOOOOOOOWLING now! :)

09-15-2012, 07:00 AM	#3
Timay Join Date: Oct 2011 Location: Centennial, CO Posts: 321	Hmmm. Doesn't make sense to me as reversion is when the intake valve opens prior to the exhaust valve closing (which they all do on a reasonably high performance engine - see here: http://www.circletrack.com/enginetec...ake_reversion/) and the exhaust gases blow the intake gases back into the intake runner. Makes more sense if he is talking about the engine going lean because of less back pressure and is popping on decel...and then the lollipop would work by causing a bit more back pressure and a less lean mixture and no more 'jake brake' sound. I'd like some more info on how the lollipop is mounted - I think that may be the answer to the lack of adequate vacumn to run my cruise control (and my popping on decel with the V&H Duals). Did you just mount it to the baffle? Thanks! Tim A __________________ 2000 Nomad VBA #01884
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09-15-2012, 08:17 AM	#4
ringadingh Join Date: Aug 2007 Location: Newmarket Ontario Canada Posts: 35,387	My 1500 motor always made that jake brake sound when letting off the throttle. Now that I have the 1600 motor installed with the same exhaust, that noise is gone, but it pops on decel now, even though its marbled, and no apparent leaks. __________________ 2002 Nomad aka Bountyhunter VBA #27 VROC #18951
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09-15-2012, 09:33 AM	#5
Coots Magee Jr. Member Join Date: Jul 2012 Location: Arkansas Posts: 22	Timay, I'm not sure about all the technical jargon "lol" I just know it's working. I'll post a pic ASAP. Login or Register to Remove Ads
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