When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I've been puttering around doing a bunch of side projects on and off for a week - spent a few days in the ER for my mom, who had a heart attack - so I only just got to pull the head unit and bracket last night with intent of replacing idler and tensioner pulleys which had begun to squeal.
I thought they had begun chewing on the belt. And to be fair one side of the belt appeared rubbed. Laser aligning pulleys showed that everything was within spec. No significant variance.
Yet there seemed to be a lot of rubber powder being blown around under the head unit.
The source was the rubber sleeve over the outlet pipe. It has been rubbing against the radiator fan shroud and was close to wearing through at the blower.
My best guess right now is to go in and sand/clearance the shroud in this area so it is less sharp. I am also wondering what can be done to stand the radiator and condenser up to the front a bit more instead of the lazy lean towards the blower.
I'm definitely open to suggestions.
You can see the tear and the powder accumulation.
Blow pattern of the rubber powder as the tube was consumed.
You can just shave down that fan shroud plastic with a sharp utility knife. I clearanced it quite a bit for one of the intercooler pipes on my turbo car.
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
does your engine move a lot, factory mounts?... I'm pretty sure mine touches ever so slightly in the same area but it hasn't worn in the slightest bit since the car has been boosted
With the A&A install, the radiator, condenser and fan assembly all lean back without anything holding them in place at the top. I believe the fan assembly leans into the charge pipe coming off the head unit and that radiator probably shifts more than the engine, which remains on factory mounts. I do have the rear on a pfadt trans mount and an ecs brace.
I won't be back to the shop until the weekend, at which point I probably will clearance the fan shroud healthily.
start with getting new engine mounts. yours are shot most likely.
You think they could be shot with 70k miles? 68 of which have been stock LS1, 2 of which sub-2k rpm prior to tuning for the blower and while figuring out fuel issues.
What is the wisdom on mount selection for a car driven for fun on the street with just ~500 whp?
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
the stock mounts suck, they let the engine move way too much... I have had pfadt mounts on my car for about 7 years or so and they are still working great, the engine doesn't move at all... I think that's where your issue lies
I'm thinking if I do swap mounts, I'll add it to the list for next year. Current ones are not busted and I can solve the problem with a razorblade.
I'm thinking next year would be a new damper, timing chain, two piece cover, maybe mounts, and a cam. For now I'm going to get it on the road and enjoy the season.
St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23
Originally Posted by Tusc
You think they could be shot with 70k miles? 68 of which have been stock LS1, 2 of which sub-2k rpm prior to tuning for the blower and while figuring out fuel issues.
What is the wisdom on mount selection for a car driven for fun on the street with just ~500 whp?
My mounts were shot at 74k I have 2 sets of after market mounts (Pfadt and Hinson) in my shop and I decided to use the Pfadt mounts
You think they could be shot with 70k miles? 68 of which have been stock LS1, 2 of which sub-2k rpm prior to tuning for the blower and while figuring out fuel issues.
What is the wisdom on mount selection for a car driven for fun on the street with just ~500 whp?
Mine were done and I had 25k on them. My fast 92 fit under the cowl just fine, new stock height mounts and no more good fast figment.
Problem Found - None too Soon
I have 2 sets of after market mounts (Pfadt and Hinson) in my shop and I decided to use the Pfadt mounts
