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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: 23
Latest Activity: Jul 11

Discussion Forum

Another successful trip

Well another successful trip. This one to colonial Williamsburg VA. Had a great time and no incidents at all.

Started by Philip Wolsonovich Jul 6.

Redoing Onan genset wiring an such.... 3 Replies

In the next few weeks I've made the decision to pull the BFA 4.0 genset from the Allegro and get it into the workshop. Too many past splices to the wiring, the remote panel works half the time, now…Continue

Started by Daniel Long. Last reply by Daniel Long May 4.

Removed the Roof Rack 3 Replies

Well after years of contemplation, I finally decided to remove the roof rack. I love the classic Allegro look, but I just couldn't keep up with the leaks anymore. From the factory, there are 44…Continue

Started by Jim Stoltz. Last reply by Jim Stoltz Oct 4, 2017.

Spring check up 6 Replies

Well getting ready for this years trip. New show faucet, new shocks, changed trans. fluid and adjusted choke. The only problem I can't seem to figure out is why I keep burning up alternator belts.…Continue

Started by Philip Wolsonovich. Last reply by Philip Wolsonovich Jul 22, 2017.

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Comment by Philip Wolsonovich on July 11, 2018 at 9:50am

Oh ya and you have to put a throttle position sensor on the carburetor.

Comment by Philip Wolsonovich on July 11, 2018 at 9:45am

Jim I have a 4L80E transmission with a aftermarket controller. Yes it's electric so you need to either change the speedometer or get a conversion box. The speedometer is cheaper. You also have to cut the drive shaft and move the transmission mount back. I got mine used out of a box truck and it bolted right up to the 454. She runs 65mph at about 22rpms. I keep the pulling power for hills and speed for the rest.

 

Comment by Daniel Long on July 10, 2018 at 6:59pm

I saw the 10-11 mpg figure and thought, "Dang! I wish I was getting that!" I've been getting 6-7 mpg on my original TH400 tranny. Been considering swapping out the rear end to a lower ratio to get better highway efficiency.

Comment by Jim Stoltz on July 10, 2018 at 6:54pm

Oh and on the awning thing - I recently got some NOS parts on eBay to make some long-needed repairs. You can try there.

Comment by Jim Stoltz on July 10, 2018 at 6:53pm

Glad you had a good trip. Sorry if I've asked you this before, but do you have that 4L80E behind the 454? Did you get an aftermarket controller? Or is it not an "E" (is there such a thing)? I have many questions - I want OD but not sure the best way to go about it.

Comment by Philip Wolsonovich on July 10, 2018 at 4:55pm
Well had a good trip down to Williamsburg V.A.. The old girl did good down and back at 65 to 70 mph. Got about 10 to 11 mpg. Only problem is somewhere and not even sure how I lost one of my awning rafters. Does anyone know where I could find a replacement one. I only need the outer end that slides out and hooks to the awning arm.
Comment by Philip Wolsonovich on May 23, 2018 at 3:14pm
Well haven't done much to the old girl this year. I fixed the furnace by replacing the electric valve. I also wired the stereo to the house batteries so we can play music with out killing engine battery. Leaving in about a month for Williamsburg V.A. for a little over a week camping. That's all I have for now the 4l80 transmission has been doing great so far and should be a nice ride down to Virginia.
Comment by Daniel Long on March 20, 2018 at 12:47pm

Since I'm still waiting for ONAN parts... I pulled out the Suburban furnace unit and did a complete repair/ rebuild out of two units to make a good one. Put her back in and yes!! Success! Now I have a toasty RV! I posted info videos on the YouTube....

Comment by Daniel Long on September 6, 2017 at 7:59pm

Managed to get a few NY trips under our belt on the P30 and only one mishap with the governor gear getting stripped. fixed that pretty quick and was back on the road. Now looking to go a bit further with the Allegro this Fall down further south.

Comment by Jim Stoltz on August 15, 2017 at 9:15am

Yeah the pumps seize up, which is part of the problem. The other is that the little air tubes on the manifolds rust out and leak. My replacement engine is a GM Performance crate engine ("off road use") so it didn't have the air ports on the manifolds. They make an idler to replace the air pump. Not sure. If memory serves removing it makes a pretty long run from the crank to the alternator. The belt slips unless I keep it really tight.

 
 
 

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Another successful trip

Started by Philip Wolsonovich Jul 6.

Redoing Onan genset wiring an such.... 3 Replies

Started by Daniel Long. Last reply by Daniel Long May 4.

Removed the Roof Rack 3 Replies

Started by Jim Stoltz. Last reply by Jim Stoltz Oct 4, 2017.

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