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Allegro/P-30

A place to share information about and to get help with your Tiffin Allegro and its P-30 Chevy chassis. I'm amazed at the seemingly infinite combinations of floor plans throughout the years. 

Members: 26
Latest Activity: Jul 25, 2022

Discussion Forum

Dash Controls 5 Replies

has anyone had to replace their dash AC/Heater controls or have a diagram and can provide some direction. Also has anyone replaced with after market controls.  My controls have fallen apart and not…Continue

Started by Gary R Larkin. Last reply by John Harrison Jul 25, 2022.

Operation overdrive. 8 Replies

Well the 4l80e is in place. The drive shaft is cut and remounted. The holes for transmission cross member are drilled. The wiring for trans controller is run up to cab. All in all this are going good…Continue

Started by Philip Wolsonovich. Last reply by Sam Mason Jul 25, 2022.

Refrigerator replacement 2 Replies

Has anyone replaced their refrigerator? I have a 1985 28 ft Allegro/P-30 that needs the fridge replaced, but by measuring, it won't fit through the door frame even with the fridge doors removed. The…Continue

Started by Richard Pyne. Last reply by R.L Hegler Aug 4, 2021.

Suspension air bags 13 Replies

Has anyone replaced the coil airbags? If so how did you get them in. The instructions say to twist the air bag but I can't get it to untwist once it is in coil.

Started by Philip Wolsonovich. Last reply by Sam Mason Jun 12, 2021.

Comment Wall

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Comment by Daniel Long on March 30, 2017 at 4:38pm

When working on my Allegro. I follow some simple rules for repair and fixes. 1) Research as much as you can and know that you will run into something not covered in the manual; 2) the repair job will NEVER be as quick and simple as everyone tells you it will be; 3) assume you will break something that will require additional purchases or fabrication work; 4) accept that many times the application of the wrong tool will not be as good as just getting the right tool for the job; 5) you will get dirty.

Comment by Daniel Long on March 30, 2017 at 4:32pm

I hear you Phil! Every time I order a chassis part like shocks and such I always have to double-check that it is indeed for my motorhome. Even the shocks I ordered said, "not for mono-beam suspension motorhomes" but mine has independent front suspension. Bet they just meant, "forget it, this ain't for any motorhome". Same size, capacity, etc. but something will be wrong with it! Argh!

Comment by Philip Wolsonovich on March 30, 2017 at 4:29pm
Trust me make sure they are the correct airbags. The first set I got were in the correct box but someone packaged them wrong. Use plenty of soap and patience. You hands will be sore after but the ride is worth it. Oh and it's not as easy as in the video. Good luck.
Comment by Daniel Long on March 30, 2017 at 4:04pm

Luckily mine just has the leaf springs in back.No compressor.  Low tech but I don't have to worry about 2 sets of bags! The guy on YouTube has some really good videos of his coach (P30 chassis) to look at and get a feel for the repairs. His handle is "Class A Living".

Comment by Jim Stoltz on March 30, 2017 at 3:54pm

Ugh. I do need air bags. It's the one thing I've been avoiding since I got it. I have a pair - new in the box. Maybe this will be the year I actually do it. Maybe even before the Pocono race!

A bit higher on the priority list is one of the rear bags has a pretty good leak. The rear bags ARE the suspension in the back (no springs) so I need to fix that. As long as it's running it's fine - the compressor keeps it topped off. But if it sits for more than a day it drops right to the ground. I had just pumped it up in that pic I posted.

Comment by Daniel Long on March 30, 2017 at 3:40pm

Just ordered KYB shocks and tested my front air bags and they both leak like sieves. Time to get new ones! Glad I've seen the install done before.

Comment by WILLARD STOTLER on March 30, 2017 at 3:19pm

putting new air bags & shocks on our beast not my favorite thing 

Comment by Jim Stoltz on March 29, 2017 at 9:55pm

Firmed up my NASCAR plans. I'm thinking the early-June race will be the first time out for the season with the old Allegro. I fired it up today and made a list of things to do between now and then. De-winterize, sanitize, change all the fluids, get more propane, etc. and so on. 

Comment by Jim Stoltz on February 13, 2017 at 9:33am

Mine seems to be holding up okay. One of the straps is pretty well rusted. I think my generator standpipe has holes in it too. I have to have over 1/2 a tank of gas in order for it to run. How did you get the tank out? I pulled the straps off and the thing wouldn't budge. I also don't see how it would drop out with the filler neck on it, and I don't see how you could remove it.

Comment by Jim Stoltz on February 12, 2017 at 9:13pm

Mine's 85 gallons, but I don't know the dimensions. I don't see anywhere in the manual where it says that, but the guy that sold it to me knew somehow. It seems about right based on fillups and usage (my fuel level gauge doesn't work).

 
 
 

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Discussion Forum

Refrigerator replacement 2 Replies

Started by Richard Pyne. Last reply by R.L Hegler Aug 4, 2021.

Last camp or for the year 2 Replies

Started by Philip Wolsonovich. Last reply by Daniel Long Feb 8, 2019.

Another successful trip

Started by Philip Wolsonovich Jul 6, 2018.

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